Melolonthinae
Guides
Acoma arizonica
Acoma arizonica is a small scarab beetle in the family Scarabaeidae, described by Brown in 1929. Adults measure 4.7–7.6 mm in length. The species is known only from Arizona in the southwestern United States, where it occurs in arid and semi-arid habitats.
Acoma conjuncta
Acoma conjuncta is a species of scarab beetle described by Howden in 1962. It belongs to the subfamily Melolonthinae, a group commonly known as May beetles or June beetles. The species has been documented only from Texas, USA, suggesting a restricted geographic range. As a member of the genus Acoma, it is part of a small group of scarab beetles primarily distributed in western North America.
Acoma diminiata
Acoma diminiata is a small scarab beetle in the family Scarabaeidae, described by Howden in 1958. It is known from New Mexico in the southwestern United States. Adults measure 4.3–5.7 mm in length. The species belongs to the subfamily Melolonthinae and tribe Acomini.
Acoma glabrata
Acoma glabrata is a small scarab beetle in the family Scarabaeidae, described by Cazier in 1953. It is known from the southwestern United States and northwestern Mexico. Adults measure 5.5–8.3 mm in length. The species belongs to the tribe Acomini within the subfamily Melolonthinae.
Acoma mixta
Acoma mixta is a small scarab beetle in the family Scarabaeidae, described by Howden in 1958. Adults measure 4.8–7.5 mm in length. The species is documented from Arizona, USA, though field observations suggest it may also occur in adjacent areas of New Mexico. Like other members of the genus Acoma, it is a dung-associated beetle, though specific ecological details remain limited.
Acomini
Acomini is a tribe of scarab beetles (Scarabaeidae: Melolonthinae) established by Evans & Smith in 2020. The tribe is known from limited observations, with iNaturalist documenting only 10 records. As a recently described taxonomic group, its constituent genera and species remain poorly documented in public sources.
Amblonoxia
dusty June beetles
Amblonoxia is a genus of dusty June beetles in the family Scarabaeidae, established by Reitter in 1902. The genus contains six described species distributed in the Nearctic region. These beetles belong to the subfamily Melolonthinae, a group commonly known as May beetles or June beetles. Members are characterized by their dusty or dull appearance, reflecting the common name.
Amblonoxia fieldi
Amblonoxia fieldi is a species of scarab beetle in the family Scarabaeidae. It was described by Fall in 1908. The species belongs to the subfamily Melolonthinae, commonly known as May beetles or June beetles. Very little specific information is available about this particular species in the published literature.
Amblonoxia harfordi
Amblonoxia harfordi is a scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It is endemic to California and belongs to a genus of flightless, soil-dwelling beetles. The species is poorly documented in scientific literature, with most records coming from citizen science observations. It is active during spring and early summer.
Amphimallon majale
European chafer
A scarab beetle native to continental Europe, now invasive in temperate North America where it is commonly called a June bug. The large, white larvae (grubs) feed on grass roots and are significant pests of lawns and turfgrass. Adults are short-lived and primarily reproductive. The species has been introduced to Canada and the United States, where it lacks natural population controls.
Ardella
Ardella is a genus of scarab beetles in the family Scarabaeidae, subfamily Melolonthinae, established by Paulsen in 2021. It is the type genus of the tribe Ardellini, a recently recognized lineage within the scarab beetles. The genus is known from the Nearctic region. As a newly described genus, detailed biological information remains limited.
Chnaunanthus chapini
Chnaunanthus chapini is a species of scarab beetle described by Saylor in 1937. It belongs to the subfamily Melolonthinae, commonly known as May beetles or June beetles. The species is known from limited records in California, USA. Very few observations of this species have been documented.
Chnaunanthus flavipennis
Chnaunanthus flavipennis is a scarab beetle in the tribe Chnaunanthini, first described by George Henry Horn in 1867. The species is known from arid regions of the southwestern United States, specifically Arizona and Utah. Like other members of its genus, it is associated with dry habitats. The specific epithet 'flavipennis' refers to yellowish wing coloration.
Coenonycha
May beetles, Junebugs
Coenonycha is a genus of scarab beetles in the family Scarabaeidae, commonly known as May beetles or Junebugs. The genus contains more than 30 described species. Members of this genus are classified within the subfamily Melolonthinae and tribe Dichelonychini.
Coenonycha hageni
Coenonycha hageni is a species of scarab beetle in the family Scarabaeidae, described by Cazier in 1943. It is known from the Nearctic region, specifically recorded from California, USA. The genus Coenonycha belongs to the tribe Dichelonychini within the subfamily Melolonthinae. Information regarding its biology, ecology, and detailed morphology remains limited in published literature.
Coenonycha inaja
Coenonycha inaja is a scarab beetle species described in 2022 from California. It belongs to the genus Coenonycha, a group of melolonthine scarabs endemic to western North America. The species is known from a single observation record, reflecting its recent description and likely limited survey effort.
Coenonycha lurida
Coenonycha lurida is a species of scarab beetle in the family Scarabaeidae, described by Cazier in 1943. It is native to western North America, with records from California (USA) and Baja California (Mexico). The genus Coenonycha belongs to the tribe Dichelonychini within the subfamily Melolonthinae, a group commonly known as May beetles or June beetles. Very little specific biological information has been published for this particular species.
Dichelonyx albicollis
White-collared Chafer
Dichelonyx albicollis is a species of scarab beetle in the subfamily Melolonthinae. It occurs across eastern North America, with records from Canada and the United States. The species is commonly known as the White-collared Chafer.
Dichelonyx backii
green pine chafer, green rose chafer
Dichelonyx backii, commonly known as the green pine chafer or green rose chafer, is a species of scarab beetle in the family Scarabaeidae. It belongs to the subfamily Melolonthinae and tribe Dichelonychini. The species has been documented across North America and is frequently observed on iNaturalist with over 600 records.
Dichelonyx canadensis
May beetle, junebug
Dichelonyx canadensis is a species of scarab beetle in the subfamily Melolonthinae, commonly referred to as a May beetle or junebug. The species occurs in North America, with documented records from Canada (Labrador, Ontario, Quebec) and the United States (South Dakota, Wisconsin). As a member of the genus Dichelonyx, it belongs to a group of beetles whose larvae typically develop in soil and feed on plant roots.
Dichelonyx diluta
Dichelonyx diluta is a species of scarab beetle in the family Scarabaeidae, described by Fall in 1901. It is a small scarab belonging to the tribe Dichelonychini, a group commonly known as May beetles or June beetles. The species is distributed across northeastern North America, with records from both the United States and Canada.
Dichelonyx fulgida
Dichelonyx fulgida is a species of scarab beetle in the subfamily Melolonthinae, tribe Dichelonychini. Described by LeConte in 1856, this species belongs to a genus of North American May beetles. The genus Dichelonyx comprises approximately 20 species distributed primarily in western and central North America. Like other members of the tribe Dichelonychini, adults are typically active in spring and are attracted to lights. Larvae develop in soil, feeding on roots of various plants.
Dichelonyx fuscula
Dichelonyx fuscula is a species of scarab beetle in the family Scarabaeidae, first described by John Lawrence LeConte in 1856. It belongs to the tribe Dichelonychini within the subfamily Melolonthinae, a group commonly known as May beetles or June beetles. The species is distributed across eastern and central North America, with records from the eastern United States extending westward to Colorado.
Dichelonyx pusilla
Dichelonyx pusilla is a species of scarab beetle in the family Scarabaeidae. The species is known to occur in Central America and North America. It belongs to the subfamily Melolonthinae, a group commonly referred to as May beetles or June bugs. The genus Dichelonyx is characterized by distinctive morphological features including cleft or split claws, a trait reflected in its name (from Greek 'dicha' meaning in two and 'onyx' meaning claw).
Dichelonyx sulcata
Dichelonyx sulcata is a species of scarab beetle in the family Scarabaeidae, tribe Dichelonychini. The species was described by LeConte in 1856 and is native to North America. Very little specific biological information is documented for this species. A single observation from southwestern Utah in September notes a tiny Dichelonyx-like scarab captured in a yellow bottle trap in sand dune habitat adjacent to Ponderosa pine woodlands.
Dichelonyx truncata
Dichelonyx truncata is a species of scarab beetle in the subfamily Melolonthinae, tribe Dichelonychini. It is native to western North America, with records from the western United States and southwestern Canada. The species was described by John Lawrence LeConte in 1856. Like other members of its genus, it is associated with open, often xeric habitats in the interior west.
Dichelonyx vaga
Dichelonyx vaga is a species of scarab beetle in the family Scarabaeidae. It is known from western North America, with records from California and Nevada. The species belongs to the tribe Dichelonychini within the subfamily Melolonthinae.
Dichelonyx valida
Dichelonyx valida is a species of scarab beetle in the family Scarabaeidae. It was described by LeConte in 1856. The species is known from western North America, with confirmed records from California and Oregon.
Dichelonyx vicina
Dichelonyx vicina is a species of scarab beetle in the family Scarabaeidae. The species is known to occur in North America. Two subspecies are recognized: Dichelonyx vicina columbiana Hopping, 1931 and Dichelonyx vicina vicina. Beyond this basic taxonomic information, detailed biological and ecological data for this species remain limited in the available literature.
Dinacoma marginata
Dinacoma marginata is a species of scarab beetle in the family Scarabaeidae, originally described as Thyce marginata by Casey in 1886. It is currently classified in the genus Dinacoma within the tribe Melolonthini. The species is known from California, USA, with records indicating presence in the Nearctic region. Very little detailed biological information has been published for this species.
Diplotaxis abnormis
Diplotaxis abnormis is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by Fall in 1909 and belongs to the tribe Diplotaxini. It is distributed in the southwestern United States (Arizona, New Mexico) and northern Mexico (Chihuahua, Sonora). Like other members of the genus Diplotaxis, it is likely a nocturnal species that congregates on vegetation to detect pheromone trails for mate location.
Diplotaxis arizonica
Diplotaxis arizonica is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, and tribe Diplotaxini. It was described by Schaeffer in 1907. The species is known from Arizona, USA, within the Nearctic region. Like other members of the genus Diplotaxis, it is likely a chafer beetle with larvae that develop in soil, though specific biological details remain poorly documented.
Diplotaxis beyeri
Diplotaxis beyeri is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, and tribe Diplotaxini. The species was described by Schaeffer in 1907. It occurs in the southwestern United States and northeastern Mexico. Like other members of the genus Diplotaxis, adults are typically nocturnal and may be found on low vegetation.
Diplotaxis bidentata
Diplotaxis bidentata is a species of scarab beetle in the family Scarabaeidae. It is found in North America. The species is a small chafer that has been observed congregating on low vegetation, apparently to detect pheromone trails in search of mates.
Diplotaxis blanchardi
Diplotaxis blanchardi is a small scarab beetle in the subfamily Melolonthinae, described by Vaurie in 1956. The species is known from scattered records across the central and eastern United States. Like other members of the genus Diplotaxis, adults are nocturnal and frequently attracted to lights. The species has been documented in sand dune habitats and grassland environments.
Diplotaxis brachyptera
A small scarab beetle in the genus Diplotaxis, family Scarabaeidae, described by Patricia Vaurie in 1960. The species name 'brachyptera' (short-winged) suggests reduced flight capability. Records indicate presence in arid and semi-arid regions of the southwestern United States and northern Mexico. Like other Diplotaxis species, adults are likely nocturnal and may aggregate on vegetation.
Diplotaxis brevisetosa
Diplotaxis brevisetosa is a species of scarab beetle in the family Scarabaeidae, tribe Diplotaxini, described by Linell in 1897. It is a small chafer beetle occurring in the Nearctic region, specifically known from Texas. Like other members of its genus, it is attracted to lights at night and has been observed congregating on low vegetation. The specific epithet 'brevisetosa' refers to short setae (bristles), a distinctive morphological feature of this species.
Diplotaxis fimbriata
May beetle, junebug
Diplotaxis fimbriata is a species of scarab beetle in the family Scarabaeidae, commonly referred to as a May beetle or junebug. The species was described by Fall in 1909 and occurs in the western Nearctic region. It is found in California (USA) and Baja California (Mexico), representing a relatively restricted geographic range within the genus Diplotaxis. Like other members of the tribe Diplotaxini, adults are likely nocturnal and attracted to light sources.
Diplotaxis fissilabris
A small scarab beetle in the genus Diplotaxis, first described by Fall in 1909. Members of this genus are commonly known as chafers and are typically nocturnal, attracted to lights. The specific epithet "fissilabris" refers to a cleft or split lip, likely describing a distinctive labral feature. The species occurs in the southwestern United States and northwestern Mexico.
Diplotaxis frondicola
May beetle, junebug
Diplotaxis frondicola is a species of scarab beetle in the subfamily Melolonthinae, commonly known as a May beetle or junebug. It belongs to a large genus of small chafers distributed across North America. The species was first described by Thomas Say in 1825. Like other Diplotaxis species, adults are typically attracted to lights at night and are often observed on vegetation.
Diplotaxis harperi
Diplotaxis harperi is a species of scarab beetle in the family Scarabaeidae, first described by Blanchard in 1851. It belongs to the subfamily Melolonthinae, commonly known as May beetles or June beetles. The species is distributed across North America, with records from numerous U.S. states spanning from the Atlantic coast to the Great Plains and Southwest. Like other members of the genus Diplotaxis, it is likely nocturnally active and associated with vegetation.
Diplotaxis haydenii
Diplotaxis haydenii is a small scarab beetle (family Scarabaeidae, subfamily Melolonthinae) in the tribe Diplotaxini. The genus Diplotaxis comprises small chafers, and D. haydenii is one of approximately 200 species in this primarily New World genus. It is known from western North America, with records from the Rocky Mountain region and adjacent areas. Like other Diplotaxis species, adults are attracted to lights at night and have been observed congregating on low vegetation.
Diplotaxis muricata
Diplotaxis muricata is a small scarab beetle species in the family Scarabaeidae, subfamily Melolonthinae. The genus Diplotaxis comprises chafers—small to medium-sized scarabs often attracted to lights at night. The species was described by Schaeffer in 1907 and is known from the southwestern United States and adjacent Mexico. Like other Diplotaxis species, adults are likely nocturnal and may be found on low vegetation.
Diplotaxis puberula
Downy Diplotaxis
Diplotaxis puberula is a species of scarab beetle in the family Scarabaeidae, first described by LeConte in 1863. It is distributed across parts of North and Central America, with records from Texas in the United States and the Mexican states of Nuevo León and Tamaulipas. The species belongs to the chafers (Melolonthinae), a diverse subfamily whose larvae typically develop in soil and feed on roots.
Diplotaxis pumila
Diplotaxis pumila is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Fall in 1909. It belongs to the genus Diplotaxis, a group of chafers known for their nocturnal aggregation behavior on vegetation where males intercept female pheromone trails. The species is documented from the southwestern United States, particularly Arizona. Like other members of its genus, it is likely attracted to lights at night and may be active during summer months following rainfall events.
Diplotaxis rex
King Ranch Diplotaxis
Diplotaxis rex is a species of scarab beetle described by Vaurie in 1958. It belongs to the family Scarabaeidae, subfamily Melolonthinae, and tribe Diplotaxini. The species is native to North America, with documented occurrence in Texas. Like other members of the genus Diplotaxis, it is a small chafer beetle. The common name "King Ranch Diplotaxis" suggests an association with the historic King Ranch region of southern Texas.
Diplotaxis rudis
Diplotaxis rudis is a species of scarab beetle in the family Scarabaeidae, first described by LeConte in 1859. It belongs to the subfamily Melolonthinae and tribe Diplotaxini. The species is found in North America, with records from Kansas, North Dakota, and Texas. Very little specific information about its biology or ecology has been documented in the available literature.
Diplotaxis rufa
Rufous Scarab Beetle
Diplotaxis rufa is a scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by Linell in 1896. Records indicate presence in the southeastern United States, specifically Florida and Georgia. As a member of the genus Diplotaxis, it belongs to a group commonly known as May beetles or June beetles, though specific biological details for this species remain poorly documented.
ScarabaeidaeMelolonthinaeColeopteraNearcticUSAFloridaGeorgia1896-descriptionLinellDiplotaxiniscarab-beetleMay-beetleJune-beetleLinell-1896Diplotaxis-rufa-Linell-1896scarabbeetleinsectarthropodanimalscarabaeoidpolyphagastaphyliniformiascarabaeoideadiplotaxisrufarufoussoutheastern-United-Statessoutheast-USNorth-AmericaNearctic-regionDiplotaxis rufiola
A small scarab beetle species in the genus Diplotaxis, described by Fall in 1909. It belongs to the tribe Diplotaxini within the subfamily Melolonthinae. The species has been documented across the southwestern United States and northern Mexico.
Diplotaxis simplex
Diplotaxis simplex is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, and tribe Diplotaxini. It was described by Blanchard in 1851. The species is known to occur in Central America and North America. Very little detailed biological information has been published for this species.
Diplotaxis subangulata
Diplotaxis subangulata is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by LeConte in 1856. The genus Diplotaxis comprises small chafers, and this species occurs across western North America from British Columbia to Baja California, with records throughout the southwestern United States. Adults have been observed congregating on low vegetation, apparently to intercept pheromone trails in search of mates. The species is attracted to lights at night.
Diplotaxis subcostata
Diplotaxis subcostata is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by Blanchard in 1851 and is distributed across the eastern and southern United States. Like other members of the genus Diplotaxis, it is attracted to lights at night and has been observed congregating on low vegetation, possibly in association with pheromone trails.
Diplotaxis tenebrosa
Diplotaxis tenebrosa is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Henry Clinton Fall in 1909. The species belongs to the tribe Diplotaxini, a group of chafers commonly associated with sandy habitats. The specific epithet 'tenebrosa' (Latin for 'dark' or 'gloomy') likely refers to the species' dark coloration. Records indicate this species occurs in western North America, with specimens documented from multiple states and provinces in the Nearctic region.
Diplotaxis truncatula
Diplotaxis truncatula is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by LeConte in 1856 and is distributed across the southwestern United States and northern Mexico. It belongs to a genus of chafers commonly attracted to lights at night.
Diplotaxis vandykei
Diplotaxis vandykei is a species of scarab beetle in the family Scarabaeidae, first described by Vaurie in 1958. The species belongs to the genus Diplotaxis, a group of small scarab beetles commonly known as sand chafers. It is found in North America, with distribution records indicating presence in the Nearctic region, specifically Alabama. Like other members of its genus, it likely inhabits sandy habitats and exhibits nocturnal activity patterns.
Fossocarus
Fossocarus is a monotypic genus of scarab beetles in the family Scarabaeidae, subfamily Melolonthinae. The genus contains a single described species, F. creoleorum. It belongs to the tribe Melolonthini, commonly known as May beetles or Junebugs. The genus was established by Howden in 1961.
Gronocarus
lobed spiny burrowing beetle, lobeless spiny burrowing beetle
Gronocarus is a small genus of scarab beetles in the family Scarabaeidae, subfamily Melolonthinae. The genus contains at least three described species, including G. autumnalis and G. inornatus, which exhibit distinct morphological differences in pronotal lobe development. These beetles are burrowing species with spiny morphology.
Gronocarus inornatus
lobeless spiny burrowing beetle
Gronocarus inornatus is a small scarab beetle described by Skelley in 2003. It is endemic to a restricted coastal region of the Florida panhandle. The species is characterized by its glabrous, shining brown body and moderately elongate form. It is known by the common name 'lobeless spiny burrowing beetle,' though detailed ecological data remain limited.
Gymnopyge hopliaeformis
Gymnopyge hopliaeformis is a species of scarab beetle described by Linell in 1896. It belongs to the subfamily Melolonthinae, tribe Dichelonychini. The species is known from California and represents a rare component of the Nearctic scarab fauna. Very few observations exist, with only two records documented on iNaturalist.
Hoplia
monkey beetles
Hoplia is a genus of scarab beetles commonly known as monkey beetles, comprising at least 300 described species distributed across Asia, Europe, South Africa, Madagascar, and the Americas. The genus is notable for its diverse and often striking coloration strategies, including structural colors produced by nanostructured scales on the elytra. Several species exhibit remarkable optical properties, such as rapid reversible color change upon water exposure in H. argentea, or diffusive angle-independent structural coloration that may enhance camouflage. Adults of many species are associated with flowers, where they feed on pollen and nectar, while larvae typically develop in soil or plant roots. Some species have become significant agricultural or turf pests, including H. philanthus in Europe and H. spectabilis in western China.
Hoplia hirta
Hoplia hirta is a scarab beetle species in the family Scarabaeidae, described by LeConte in 1880. It is distributed in the western United States, with records from California, Nevada, and Oregon. Like other members of the genus Hoplia, it is likely associated with flowering plants as an adult, though specific ecological details for this species remain poorly documented. The species name 'hirta' refers to hairy or bristly characteristics, presumably of the adult beetle's body surface.
Hoplia mucorea
Hoplia mucorea is a species of scarab beetle in the family Scarabaeidae. It has been recorded from multiple U.S. states (California, Florida, Georgia, North Carolina, South Carolina) and Sonora, Mexico. The species belongs to the genus Hoplia, which comprises small to medium-sized scarab beetles often associated with flowers and vegetation.
Hoplia trivialis
Dark hoplia
Hoplia trivialis, commonly known as the dark hoplia, is a species of scarab beetle in the family Scarabaeidae. It is native to North America and has been documented across a broad range of eastern and central United States. The species is relatively poorly studied compared to other scarab beetles, with limited published information on its biology and ecology.
Hopliini
Monkey Beetles
Hopliini is a tribe of scarab beetles commonly known as monkey beetles, established by Latreille in 1829. The tribe's placement within Scarabaeidae remains uncertain, with some classifications placing it in Melolonthinae and others in Rutelinae. Members are characterized by their frequent association with flowers, where they feed on pollen, nectar, and floral tissues. The tribe is particularly diverse and ecologically significant in the Greater Cape Floristic Region of South Africa, where they serve as important pollinators for numerous plant families.
Hypothyce
May beetles, Junebugs
Hypothyce is a genus of scarab beetles in the subfamily Melolonthinae, containing four described species in the United States. All species are restricted to isolated sandhill habitats along the North American Coastal Plain. The genus exhibits pronounced geographic isolation, with each species known from a single state: Texas, Georgia, or Alabama. Several species remain poorly known, with females undescribed for three of four species.
Hypothyce mixta
East Texas Hypothyce
Hypothyce mixta is a species of scarab beetle described by Howden in 1968. It belongs to the family Scarabaeidae, subfamily Melolonthinae. The species has been recorded from sandy soils in eastern Texas, representing a restricted distribution within the Nearctic region. Like other members of the genus Hypothyce, it is likely associated with soil habitats, though specific ecological details remain poorly documented.
Hypotrichia spissipes
Florida Hypotrichia
Hypotrichia spissipes is a scarab beetle species in the family Scarabaeidae, described by John Lawrence LeConte in 1861. The species is native to Florida and has been recorded from sand scrub habitat on the Lake Wales Ridge in central Florida. The common name 'Florida Hypotrichia' reflects its apparent geographic association with the state. Available information on this species is limited, with most records being specimen-based occurrences rather than detailed biological studies.
Isonychus
May beetles, junebugs
Isonychus is a genus of scarab beetles in the subfamily Melolonthinae, commonly known as May beetles or junebugs. The genus contains more than 140 described species distributed primarily in the Neotropical and Nearctic regions. These beetles are part of the tribe Macrodactylini and are characterized by their typical scarab morphology. The genus was established by Mannerheim in 1828.
Listrochelus bottimeri
Listrochelus bottimeri is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Reinhard in 1950. It belongs to the tribe Rhizotrogini, a group commonly known as June beetles or May beetles. The species is known only from Texas in the United States. Like other members of this tribe, adults are likely nocturnal and attracted to lights.
Listrochelus disparilis
Listrochelus disparilis is a scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It was described by Horn in 1878 and occurs in the southwestern United States and northern Mexico. The species belongs to the tribe Rhizotrogini, which includes many root-feeding scarabs commonly known as May beetles or June beetles.
Listrochelus fimbripes
Listrochelus fimbripes is a species of scarab beetle in the subfamily Melolonthinae, described by John Lawrence LeConte in 1856. It is a member of the tribe Rhizotrogini, a group of soil-dwelling scarabs commonly known as May beetles or June beetles. The species is documented from scattered localities across the south-central and southwestern United States.
Listrochelus flavipennis
A scarab beetle species in the tribe Rhizotrogini, described by Horn in 1885. Very little published natural history information exists for this species. Distribution records indicate occurrence in Arizona, USA.
Listrochelus granti
Listrochelus granti is a scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Saylor in 1940. The species belongs to the genus Listrochelus, a group of rhizotrogine chafers. It has been recorded from the southwestern United States and northwestern Mexico.
Listrochelus huachuca
Listrochelus huachuca is a scarab beetle species in the family Scarabaeidae, subfamily Melolonthinae, described by Saylor in 1940. The species is named for the Huachuca Mountains of southeastern Arizona, where it has been collected. It belongs to a genus of rhizotrogine scarabs whose larvae typically develop in soil and feed on plant roots.
Listrochelus juvenilis
Listrochelus juvenilis is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Fall in 1932. It belongs to a genus of beetles commonly known as May beetles or June beetles. The species has a limited documented distribution in the southwestern United States and northwestern Mexico.
Listrochelus opacicollis
Listrochelus opacicollis is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Horn in 1878. It belongs to the tribe Rhizotrogini, a group commonly known as June beetles or May beetles. The species is known from the southwestern United States.
Listrochelus planeta
Listrochelus reinhardi
Listrochelus reinhardi is a species of scarab beetle described by Saylor in 1940. It belongs to the genus Listrochelus within the tribe Rhizotrogini, a group commonly known as May beetles or June beetles. The species is known from limited observations in Texas, USA. As with other members of Rhizotrogini, it is presumed to have subterranean larval stages and adult emergence patterns typical of the group, though specific biological details remain poorly documented.
Listrochelus snowi
Listrochelus snowi is a scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by Saylor in 1940 and is native to the southwestern United States and northwestern Mexico. It belongs to a genus of scarabs commonly known as May beetles or June beetles, though specific biological details for this species remain poorly documented in the available literature.
Listrochelus tarsalis
Listrochelus tarsalis is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, described by Schaeffer in 1908. It belongs to the genus Listrochelus, a group of rhizotrogine scarabs. Distribution records indicate occurrence in Arizona, USA. Like other melolonthine scarabs, it likely exhibits a subterranean larval stage and adult emergence patterns typical of the subfamily.
Listrochelus texensis
Listrochelus texensis is a species of scarab beetle in the subfamily Melolonthinae, described by Saylor in 1940. It is known from southern Texas and northeastern Mexico. As a member of the Rhizotrogini tribe, it likely exhibits root-feeding habits in larval stages typical of related taxa, though specific ecological studies remain limited.
Macrodactylini
Macrodactylini beetles
Macrodactylini is a tribe of scarab beetles within the subfamily Melolonthinae, commonly associated with May beetles and junebugs. The tribe contains at least 46 genera and over 1,000 described species, though estimates vary among sources. Members are classified in the superfamily Scarabaeoidea. The tribe was established by Kirby in 1837.
Macrodactylus
rose chafers, American rose chafers
Macrodactylus is a genus of scarab beetles in the family Scarabaeidae, commonly known as rose chafers or American rose chafers. The genus contains at least 110 described species distributed primarily in the Americas. Adults are typically associated with vegetation, and some species are documented agricultural pests of crops such as maize. Larval stages are soil-dwelling and develop in association with organic matter or host plant roots.
Phobetus
May beetles, junebugs
Phobetus is a genus of scarab beetles in the family Scarabaeidae, subfamily Melolonthinae, commonly known as May beetles or junebugs. The genus was established by LeConte in 1856 and contains approximately 11 described species. Species in this genus are distributed in arid and semi-arid regions of western North America, with several species endemic to specific desert mountain ranges. The genus is classified in the tribe Phobetusini, which is endemic to the Nearctic region.
Phobetus mojavus
Phobetus mojavus is a species of scarab beetle in the family Scarabaeidae, described by Barrett in 1933. It belongs to the subfamily Melolonthinae (May beetles or June beetles) and the tribe Phobetusini. The species is known from California, with its specific epithet suggesting an association with the Mojave region.
Phobetus palpalis
Phobetus palpalis is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae, and tribe Phobetusini. Described by Saylor in 1936, this species is known from California in the western United States. The genus Phobetus belongs to a group of scarab beetles commonly referred to as May beetles or June beetles, though specific biological details for this species remain poorly documented in published literature.
Phobetus saylori
Phobetus saylori is a species of scarab beetle in the family Scarabaeidae, described by Cazier in 1937. It belongs to the tribe Phobetusini within the subfamily Melolonthinae. The species is known from a small number of observations and has a restricted distribution in western North America.
Phyllophaga
May beetles, June bugs, June beetles, July beetles
Phyllophaga is a large genus of New World scarab beetles comprising over 900 species. Adults are nocturnal, attracted to artificial lights, and feed on foliage of trees and shrubs. Larvae are soil-dwelling white grubs that feed on plant roots. The genus is economically significant as both adults and larvae can cause damage to agricultural crops and turf. Some species exhibit flightlessness and diurnal activity, representing derived traits within the genus.
Phyllophaga aemula
May beetle, June beetle
Phyllophaga aemula is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. It belongs to a large genus of over 400 species in North America, many of which are difficult to distinguish without examination of genitalia. Like other members of its genus, it has subterranean larval stages and aerial adults. The species was originally described as Lachnosterna aemula by Horn in 1887.
Phyllophaga amplicornis
Phyllophaga amplicornis is a species of May beetle in the family Scarabaeidae, subfamily Melolonthinae. The species was described by Gahan. As a member of the genus Phyllophaga, it is one of over 400 species in North America, making this genus one of the most speciose scarab groups in the region. Species in this genus are commonly known as May beetles or June beetles. The larvae are soil-dwelling white grubs that feed on plant roots, while adults feed on foliage and flowers.
Phyllophaga antennata
Phyllophaga antennata is a species of scarab beetle in the family Scarabaeidae. It occurs in North America, with distribution records from Mississippi and Texas. The species was originally described by Smith in 1889 and has been synonymized under the genus Trichesthes in some taxonomic treatments.
Phyllophaga apicata
Phyllophaga apicata is a species of scarab beetle in the family Scarabaeidae, described by Reinhard in 1939. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which contains over 400 species in North America. Like other members of this genus, it is likely a root-feeding beetle with subterranean larval development, though specific biological details for this species remain poorly documented in available literature.
Phyllophaga balia
Phyllophaga balia is a species of scarab beetle in the family Scarabaeidae, one of more than 400 species in the genus Phyllophaga (May beetles) in North America. Like other members of this speciose genus, it is found in North America, with records from the eastern and central United States and Canada. Species-level identification within Phyllophaga is notoriously difficult, often requiring examination of male and female genitalia.
Phyllophaga bipartita
Phyllophaga bipartita is a species of scarab beetle in the family Scarabaeidae, commonly known as May beetles or June bugs. It belongs to a large and taxonomically challenging genus with over 400 species in North America. The species was first described by Horn in 1887 under the basionym Lachnosterna bipartita.
Phyllophaga blanda
May beetle, June beetle
Phyllophaga blanda is a species of scarab beetle in the family Scarabaeidae, first described by Sanderson in 1958. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, a diverse group of soil-dwelling scarabs whose larvae feed on plant roots. The species is known from the Nearctic region, with records from Arizona, USA. Like other members of its genus, it likely exhibits the typical Phyllophaga life cycle with subterranean larval stages and adult emergence in spring or early summer.
Phyllophaga calceata
Phyllophaga calceata is a species of scarab beetle in the family Scarabaeidae, first described by LeConte in 1856 under the basionym Lachnosterna calceata. It belongs to the genus Phyllophaga, one of the most species-rich genera of beetles in North America with over 400 species. Like other members of this genus, it is commonly known as a May beetle or June beetle. The species is found in the southeastern United States.
Phyllophaga congrua
May beetle, June beetle
Phyllophaga congrua is a scarab beetle in the family Scarabaeidae, distributed across the central and eastern United States. Like other members of the genus Phyllophaga, the larvae are soil-dwelling white grubs that feed on plant roots. The species contributes to soil ecosystem processes through burrowing activity, though this can result in agricultural damage when larval densities are high.
Phyllophaga crassissima
May beetle
Phyllophaga crassissima is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle. It is native to North America with documented occurrence across the central and eastern United States. Like other members of the genus Phyllophaga, it is a nocturnal beetle with subterranean larval stages that feed on plant roots. The species was originally described by Blanchard in 1851 under the name Ancylonycha crassissima.
Phyllophaga crinita
Phyllophaga crinita is a species of scarab beetle in the family Scarabaeidae, native to Central America. As a member of the genus Phyllophaga (commonly called May beetles or June beetles), its larvae are white grubs that develop in soil. The species was described by Burmeister in 1855.
Phyllophaga curialis
May beetle, June beetle
Phyllophaga curialis is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or June beetles. The species was described by Reinhard in 1939 and is known from Texas in the southern United States. Like other members of this large genus, the larvae are soil-dwelling root feeders while adults feed on foliage and flowers. The genus Phyllophaga contains over 400 species in North America, many of which are economically significant agricultural pests.
Phyllophaga debilis
Phyllophaga debilis is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It belongs to the highly diverse genus Phyllophaga, commonly known as May beetles or June beetles, which contains over 400 species in North America. The species is distributed across the southeastern and mid-Atlantic United States.
Phyllophaga drakii
May beetle, June beetle
Phyllophaga drakii is a species of scarab beetle in the family Scarabaeidae, commonly known as May beetles or June beetles. The species is found across North America, with records from Canada (Alberta, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan) and the United States (Alabama, Colorado, Georgia, Indiana, Iowa, Maryland, Mississippi, Nebraska, Texas, Virginia, Wisconsin, and eastern states west to New Mexico and South Dakota). Like other members of the genus Phyllophaga, adults are nocturnal and attracted to lights. The genus contains over 400 species in North America, making it one of the most species-rich scarab genera on the continent.
Phyllophaga ephilida
Phyllophaga ephilida is a species of scarab beetle in the family Scarabaeidae. It occurs in Central America and North America, with two recognized subspecies: P. ephilida ephilida and P. ephilida virilis. As a member of the genus Phyllophaga (May beetles), it belongs to a highly speciose group of scarabs whose larvae are root-feeding white grubs.
Phyllophaga epigaea
Phyllophaga epigaea is a species of scarab beetle in the family Scarabaeidae. It is one of over 400 species in the genus Phyllophaga, commonly known as May beetles or June beetles. The species is found in North America, with records from Texas in the United States and Nuevo León in Mexico. Like other members of its genus, it is likely nocturnal and associated with soil habitats.
Phyllophaga errans
Phyllophaga errans is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or June beetles. The genus contains over 400 species in North America, making it one of the most speciose beetle genera in the region. Species-level identification within Phyllophaga is notoriously difficult and typically requires examination of male and female genitalia. P. errans occurs in the western United States.
Phyllophaga farcta
Phyllophaga farcta is a species of scarab beetle in the family Scarabaeidae, commonly known as May beetles or June bugs. The species was described by LeConte in 1856. Like other members of the genus Phyllophaga, it is likely nocturnal and attracted to lights. Available information on this species is limited compared to better-studied congeners.
Phyllophaga fraterna
Phyllophaga fraterna is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. The species occurs in North America and was described by Harris in 1842. It belongs to one of the most species-rich genera of beetles in North America, with more than 400 species in the genus Phyllophaga. Two subspecies are recognized: P. fraterna fraterna and P. fraterna mississippiensis.
Phyllophaga fusca
northern June beetle
Phyllophaga fusca, commonly known as the northern June beetle, is a scarab beetle in the family Scarabaeidae. It is found across North America, with records from both Canada and the United States. Like other members of the genus Phyllophaga, it is a type of May or June beetle with larvae that develop in soil.
Phyllophaga georgiana
Phyllophaga georgiana is a species of scarab beetle in the family Scarabaeidae, described by Horn in 1885. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, whose larvae are familiar white grubs that feed on plant roots. The species is found in the southeastern United States.
Phyllophaga gracilis
gracilis May/June beetle
Phyllophaga gracilis is a species of scarab beetle in the family Scarabaeidae, described by Burmeister in 1855. It belongs to the large genus Phyllophaga, commonly known as May beetles or June bugs, which contains numerous species often difficult to distinguish without close examination. The species is found in North America, with records from Ontario, Canada. Like other members of its genus, it likely has a subterranean larval stage and adult emergence timed to spring or early summer.
Phyllophaga hirticula
Phyllophaga hirticula is a species of scarab beetle in the family Scarabaeidae, one of over 400 species in the genus Phyllophaga found in North America. The species was originally described as Melolontha hirticula by Knoch in 1801. Two subspecies are recognized: P. h. hirticula and P. h. comosa. Like other May beetles, it is part of a large and taxonomically challenging genus where species identification often requires examination of genitalia.
Phyllophaga idonea
Phyllophaga idonea is a species of May beetle in the family Scarabaeidae, described by Sanderson in 1948. Like other members of the genus Phyllophaga, it belongs to a highly diverse group of scarab beetles with over 400 species in North America. Species in this genus are typically nocturnal as adults, with larvae feeding on plant roots in soil. The specific biology and ecology of P. idonea remain poorly documented compared to some congeners.
Phyllophaga ignava
May beetle, June beetle
Phyllophaga ignava is a species of scarab beetle in the family Scarabaeidae. It is found in Central America and North America. As a member of the genus Phyllophaga, commonly known as May beetles or June beetles, it shares the typical characteristics of the group including nocturnal adults and root-feeding larvae.
Phyllophaga inepta
May beetle, June beetle
Phyllophaga inepta is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. It belongs to one of the most speciose genera in North American beetles, with over 400 species. Like other members of the genus, it has a subterranean larval stage that feeds on plant roots and an adult stage that feeds on foliage.
Phyllophaga inversa
May beetle
Phyllophaga inversa is a scarab beetle species in the family Scarabaeidae, originally described as Lachnosterna inversa by Horn in 1887. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which are characterized by subterranean larval stages that feed on plant roots. The species occurs in both Central America and North America, with documented records from the United States and Canada.
Phyllophaga invisa
Phyllophaga invisa is a species of scarab beetle in the family Scarabaeidae, described by Riley and Wolfe in 1995. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which is one of the most species-rich genera of beetles in North America with over 400 species. The species is known from Texas, USA, and represents part of the diverse scarab fauna of the Nearctic region. Like other members of its genus, it is likely a root-feeding species with subterranean larval stages and aerial adults.
Phyllophaga karlsioei
May beetle, June beetle
Phyllophaga karlsioei is a species of scarab beetle in the family Scarabaeidae, one of over 400 species in the genus Phyllophaga found in North America. Like other May beetles, it is likely nocturnal with adults emerging in late spring to early summer. The genus is characterized by larvae that feed on plant roots in soil, earning them the common name 'white grubs.'
Phyllophaga latifrons
May beetle, junebug
Phyllophaga latifrons is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or junebugs. The species was originally described by LeConte in 1856 under the name Lachnosterna latifrons. It is found in the eastern and southeastern United States, with records from Alabama, Florida, Georgia, Louisiana, Maryland, Mississippi, New Jersey, North Carolina, South Carolina, and Virginia.
Phyllophaga lobata
Phyllophaga lobata is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It belongs to the genus Phyllophaga, a large group of beetles commonly known as May beetles or June bugs. The species was described by Henry Clinton Fall in 1908. Distribution records indicate presence in Arizona, USA, and parts of Middle America.
Phyllophaga longispina
May beetle, June beetle
Phyllophaga longispina is a species of scarab beetle in the family Scarabaeidae, first described by Smith in 1889. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which contains over 400 species in North America. The species is distributed across eastern North America, with records from the northeastern United States and southeastern Canada. Like other members of the genus, adults are nocturnal and attracted to lights, while larvae are soil-dwelling white grubs that feed on plant roots.
Phyllophaga longitarsa
May beetle, Junebug
Phyllophaga longitarsa is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or Junebugs. The species was described by Thomas Say in 1824 and is native to North America. Like other members of the genus, it likely exhibits a subterranean larval stage feeding on plant roots and an adult stage that emerges in spring or early summer. The genus Phyllophaga is one of the most species-rich scarab genera in North America, with over 400 species, and species-level identification often requires examination of genitalia.
Phyllophaga lota
Phyllophaga lota is a species of scarab beetle in the family Scarabaeidae, commonly known as May beetles or June bugs. It is found in North America, specifically in the southeastern United States. As a member of the genus Phyllophaga, it shares the typical life history of other May beetles, with larvae feeding on plant roots in soil and adults feeding on foliage. The species was described by Luginbill in 1928.
Phyllophaga marginalis
Phyllophaga marginalis is a species of scarab beetle in the family Scarabaeidae. It was originally described as Lachnosterna marginalis by LeConte in 1856. The species is known to occur in North America. Two subspecies are recognized: P. m. marginalis (the nominate subspecies) and P. m. insolita, described by Cartwright in 1944.
Phyllophaga nitida
Shining May Beetle
Phyllophaga nitida is a scarab beetle in the family Scarabaeidae, native to North America. The species is part of the large genus Phyllophaga, commonly known as May beetles or June bugs. Adults are nocturnal and attracted to lights. Larvae are typical white grubs that develop in soil.
Phyllophaga obsoleta vanelleri
Phyllophaga obsoleta vanelleri is a subspecies of May beetle within the scarab genus Phyllophaga. The genus Phyllophaga comprises scarab beetle larvae commonly known as 'white grubs,' which are significant agricultural and horticultural pests. This subspecies is part of a complex of Phyllophaga species that serve as hosts for parasitoid wasps including Pelecinus polyturator and Myzinum species.
Phyllophaga okeechobea
Phyllophaga okeechobea is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or June beetles. The species was described by Robinson in 1948 and is known from Florida. Like other members of this large genus, it likely exhibits the typical life history of Phyllophaga species, with larvae feeding on plant roots underground and adults emerging to feed on foliage. However, specific biological details for this species remain poorly documented.
Phyllophaga opaca
Phyllophaga opaca is a species of scarab beetle in the family Scarabaeidae, first described by Moser in 1918. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which are characterized by their subterranean larval development and adult emergence patterns. The species occurs in both Central America and North America, with documented records from the southwestern United States and western Mexico. Like other members of its genus, it likely has a life cycle involving soil-dwelling larvae that feed on plant roots.
Phyllophaga pleroma
Phyllophaga pleroma is a species of scarab beetle in the family Scarabaeidae. It is one of over 400 species in the genus Phyllophaga, a large and taxonomically challenging group of North American scarab beetles commonly known as May beetles or June bugs. The species was described by Reinhard in 1940 and is currently known from Texas. Like other members of the genus, it is likely nocturnal and attracted to lights, with larvae developing as soil-dwelling root-feeders.
Phyllophaga prunina
May beetle, June beetle
Phyllophaga prunina is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. It belongs to one of the most species-rich genera of beetles in North America, with over 400 species. Like other members of the genus, it is likely nocturnal and attracted to lights, with larvae developing as white grubs in soil feeding on plant roots. The species is found across a broad swath of the central and eastern United States.
Phyllophaga prununculina
Phyllophaga prununculina is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. It belongs to a large genus of over 400 North American species. Like other members of Phyllophaga, it has a life cycle involving soil-dwelling larval stages that feed on plant roots and above-ground adult stages that feed on foliage. The species is found in the southeastern and mid-Atlantic United States.
Phyllophaga psiloptera
Phyllophaga psiloptera is a species of scarab beetle in the family Scarabaeidae, described by Sanderson in 1939. It belongs to the genus Phyllophaga, a large group of beetles commonly known as May beetles or June beetles. The species has been documented in Texas, USA, within the Nearctic region. Like other members of Phyllophaga, it is presumed to have a subterranean larval stage and aerial adult stage, though specific biological details remain poorly documented.
Phyllophaga pusillidens
Phyllophaga pusillidens is a species of scarab beetle in the family Scarabaeidae, first described by Fall in 1937. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which contains over 400 species in North America. The species is poorly documented in scientific literature, with minimal information available regarding its biology, ecology, or distribution beyond basic taxonomic records.
Phyllophaga renodis
Phyllophaga renodis is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or June bugs. The genus Phyllophaga is one of the most species-rich genera in North America, with over 400 species. Species-level identification within this genus is notoriously difficult and typically requires examination of male and female genitalia. P. renodis is documented from Texas in the Nearctic region. Like other members of the genus, it likely has a subterranean larval stage feeding on plant roots and above-ground adults that feed on foliage.
Phyllophaga riviera
Phyllophaga riviera is a species of scarab beetle in the family Scarabaeidae, described by Reinhard in 1950. It belongs to the genus Phyllophaga, commonly known as May beetles or June beetles, which contains over 400 species in North America. The species is known from Texas within the Nearctic region. Like other members of its genus, it likely has a life cycle involving soil-dwelling larvae that feed on plant roots and adults that feed on foliage.
Phyllophaga rossi
Phyllophaga rossi is a species of scarab beetle in the family Scarabaeidae, described by Saylor in 1939. It belongs to the genus Phyllophaga, commonly known as May or June beetles, a large group of soil-dwelling scarabs whose larvae feed on plant roots. The species is recorded from Arizona, USA, within the Nearctic region. Like other members of its genus, it is presumed to have a subterranean larval stage and aerial adult stage, though specific biological details for this species remain poorly documented.
Phyllophaga rubricosa
Phyllophaga rubricosa is a species of May beetle in the family Scarabaeidae, described by Reinhard in 1939. Like other members of the genus Phyllophaga, it is likely a root-feeding scarab beetle with larvae that develop in soil. The species is known from Texas, USA. Information specific to this species is sparse; most knowledge about Phyllophaga rubricosa must be inferred from the genus level.
Phyllophaga rugosa
rugose June beetle
Phyllophaga rugosa, commonly known as the rugose June beetle, is a scarab beetle in the family Scarabaeidae. It occurs across much of North America, with documented records from Canada and the United States. Like other members of the genus Phyllophaga, it is a nocturnal beetle often attracted to lights. The species has been identified as an intermediary host for the giant thorn-headed worm of swine (Macracanthorhynchus hirudinaceus).
Phyllophaga scitula
Phyllophaga scitula is a species of scarab beetle in the family Scarabaeidae. The species is known from North America, with confirmed records from Texas. As a member of the genus Phyllophaga, it belongs to a large group commonly referred to as May beetles or June beetles, though specific ecological details for this species remain poorly documented.
Phyllophaga sonora
Phyllophaga sonora is a species of scarab beetle described by Saylor in 1939. It belongs to the genus Phyllophaga, a large group commonly known as May beetles or June bugs. The species has been documented in the southwestern United States and northwestern Mexico. Like other members of its genus, it is presumed to have subterranean larval stages and adult emergence patterns tied to seasonal rainfall, though specific biological details remain poorly documented.
Phyllophaga squamipilosa
Phyllophaga squamipilosa is a species of scarab beetle in the family Scarabaeidae, one of over 400 species in the genus Phyllophaga found in North America. The species was described by Saylor in 1936. Like other members of this large genus, it is commonly referred to as a May beetle or June beetle. Very little specific information has been published about this particular species.
Phyllophaga subtonsa
May beetle, June beetle
Phyllophaga subtonsa is a species of May beetle in the family Scarabaeidae. Like other members of the genus, it is characterized by nocturnal adult activity and larval development as white grubs in soil, feeding on plant roots. The species is found in the eastern and central United States. Adults are attracted to lights and are most active during late spring and early summer. The genus Phyllophaga is one of the most species-rich in North America, with over 400 species, making species-level identification often difficult without examination of genitalia.
Phyllophaga sylvatica
Phyllophaga sylvatica is a species of scarab beetle in the family Scarabaeidae, described by Sanderson in 1942. Like other members of the genus Phyllophaga (commonly called May/June beetles), this species is likely nocturnal and attracted to lights. The species epithet "sylvatica" suggests an association with woodland or forest habitats. Based on distribution records, it occurs across a broad swath of the central and eastern United States.
Phyllophaga torta
Phyllophaga torta is a scarab beetle species in the family Scarabaeidae. It belongs to the large genus Phyllophaga, commonly known as May beetles or June bugs, which contains over 400 species in North America. The species occurs in Central America and North America, with records from Texas in the United States and several states in northeastern Mexico.
Phyllophaga uniformis
Phyllophaga uniformis is a species of scarab beetle in the family Scarabaeidae, commonly known as May beetles or June beetles. The species was described by Blanchard in 1851. Like other members of the genus Phyllophaga, it is likely a root-feeding beetle with subterranean larval stages, though specific details about its biology remain poorly documented.
Phyllophaga vehemens
Phyllophaga vehemens is a species of scarab beetle in the family Scarabaeidae, commonly known as a May beetle or June beetle. It occurs in North America, with documented records from multiple U.S. states across the Midwest and South. The species has been identified as an intermediary host for the giant thorn-headed worm of swine (Macracanthorhynchus hirudinaceus), an acanthocephalan parasite. As with other Phyllophaga species, adults are likely nocturnal and attracted to lights.
Phyllophaga vexata
May beetle
Phyllophaga vexata is a species of scarab beetle in the family Scarabaeidae. The species was originally described by Horn in 1885. Two subspecies are recognized: Phyllophaga vexata unituberculata (Bates, 1889) and the nominotypical subspecies Phyllophaga vexata vexata. The genus Phyllophaga comprises over 400 species in North America, making it one of the most species-rich genera in the region. Species-level identification within this genus typically requires examination of male and female genitalia.
Plectris
May beetles, Junebugs
Plectris is a large genus of scarab beetles in the family Scarabaeidae, commonly known as May beetles or Junebugs. The genus contains over 360 described species, making it one of the more species-rich genera within the subfamily Melolonthinae. Members of this genus are distributed across the Neotropical region. The genus was established by Le Peletier de Saint-Fargeau and Audinet-Serville in 1828.
Plectris aliena
Plectris aliena is a scarab beetle species first described by Chapin in 1934. Adults measure 10.8–13.5 mm in length and exhibit a castaneous to yellowish-brown coloration above with paler undersides and legs. The species has been documented across a remarkably broad geographic range spanning three continents: South America (Argentina, Brazil, Paraguay), North America (North Carolina, South Carolina), and Australia (New South Wales).
Plectrodes pubescens
Plectrodes pubescens is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. Described by Horn in 1867, this species is known from California, USA. Very little is known about its biology or ecology. The genus Plectrodes contains few species and is poorly studied compared to related melolonthine genera.
Polyphylla aeolus
Kelso Dunes June Beetle
Polyphylla aeolus is a sand dune specialist scarab beetle endemic to California's Kelso Dunes in the Mojave Desert. Described by La Rue in 1998, this species belongs to a genus noted for large-bodied beetles with males possessing greatly enlarged, fan-like antennae used to detect female sex pheromones. Like other Polyphylla species restricted to sand habitats, females are likely flightless and rarely encountered. The species epithet references Aeolus, the Roman king of the winds, perhaps alluding to the wind-dispersed nature of related taxa or the windy dune environment.
Polyphylla anteronivea
Saline Valley Snow-front June Beetle, Saline Valley Snow-front Scarab
Polyphylla anteronivea is a species of scarab beetle in the family Scarabaeidae, described by Hardy in 1978. It belongs to the genus Polyphylla, commonly known as lined June beetles, which are characterized by their large size and distinctive antennae. The species is known from limited observations in North America, specifically from California.
Polyphylla barbata
Mount Hermon June Beetle
Polyphylla barbata is a federally endangered scarab beetle endemic to a single restricted locality in the Zayante sandhills of Santa Cruz County, California. The species occupies less than 1,500 acres of habitat, making it one of the most geographically limited beetles in North America. Adults are active in mid-summer, with males flying at dusk to locate flightless females using pheromone-detecting antennae. The species faces severe habitat loss from sand mining and development, with over 40% of its sandhills habitat already destroyed.
Polyphylla cavifrons
Polyphylla cavifrons is a species of scarab beetle in the family Scarabaeidae. It occurs in the southwestern United States and northwestern Mexico, including Arizona, California, Nevada, and Baja California. The species belongs to a genus known for large-bodied beetles with fan-like antennae in males, though specific details about this species' biology remain limited in published literature.
Polyphylla comes
High Mountain June Beetle
Polyphylla comes is a large scarab beetle in the family Scarabaeidae, commonly known as the High Mountain June Beetle. It belongs to a genus noted for males with enlarged, fan-like antennae used to detect female sex pheromones. The species occurs in the southeastern United States. Like other Polyphylla species, it is primarily nocturnal and attracted to lights.
Polyphylla crinita
Long-haired June Beetle
Polyphylla crinita, commonly known as the Long-haired June Beetle, is a large scarab beetle in the family Scarabaeidae. It is distinguished from closely related species by the presence of setae (hair) on the pronotum. The species occurs in western North America, with records from California north to British Columbia and east to Wyoming, as well as in Baja California, Mexico. Like other members of the genus Polyphylla, males are attracted to lights at night and possess enlarged, fan-like antennae used to detect female sex pheromones.
Polyphylla decemlineata
Ten-lined June Beetle, Watermelon Beetle
Polyphylla decemlineata is a large scarab beetle native to western North America, commonly known as the Ten-lined June Beetle or Watermelon Beetle. Adults are notable for their distinctive ten white stripes on dark elytra and greatly enlarged, fan-like antennae in males. The species is strongly attracted to lights and exhibits distinctive pheromone-mediated mating behavior where males actively search for flightless females. Larvae develop underground, feeding on roots of grasses and other plants.
Polyphylla diffracta
diffracted lined June beetle
Polyphylla diffracta is a species of scarab beetle in the family Scarabaeidae, commonly known as a lined June beetle. It belongs to a genus characterized by large, robust beetles with distinctive fan-like antennae in males. The species occurs in arid and semi-arid regions of the southwestern United States and northern Mexico. Like other Polyphylla species, males are attracted to lights at night and use their enlarged, lamellate antennae to detect female sex pheromones.
Polyphylla donaldsoni
Donaldson's lined June beetle
Polyphylla donaldsoni is a species of scarab beetle in the family Scarabaeidae, described by Skelley in 2003. It is a member of the lined June beetle genus Polyphylla, which is most diverse in the southwestern United States. Adults are medium-sized beetles that closely resemble Polyphylla pubescens but can be distinguished by specific morphological features. The species has an extremely restricted distribution, known only from central Georgia.
Polyphylla gracilis
Slender Polyphyllan Scarab Beetle
Polyphylla gracilis is a species of scarab beetle in the family Scarabaeidae, commonly known as the slender polyphyllan scarab beetle. Adults measure 18.8–21.6 mm in length and are distinguished by a mottled elytral color pattern featuring a broad lateral stripe. The species is endemic to the southeastern United States, with confirmed records from Florida, southeastern Alabama, and southwestern Georgia.
Polyphylla hammondi
Hammond's Lined June Beetle
Polyphylla hammondi is a large scarab beetle in the subfamily Melolonthinae. Adults measure 24.8–35.5 mm in length and are highly variable in coloration with almost no stripes or mottling. Males possess greatly enlarged, fan-like antennae used to detect female sex pheromones. The species is strongly associated with sand dune habitats across the Great Plains and southwestern North America. Males are attracted to lights at night and exhibit distinctive splayed-antennae behavior when actively searching for females. Females are rarely encountered and may be flightless.
Polyphylla monahansensis
Monahans ten-lined June beetle, Monahan's ten-lined June beetle
Polyphylla monahansensis is a large scarab beetle endemic to sand dune habitats of the southwestern United States and adjacent Mexico. Like other members of the genus, males possess greatly enlarged, fan-like antennae used to detect female sex pheromones. The species is nocturnal and attracted to lights, with males actively searching for flightless females after sunset. It is one of several Polyphylla species specialized to sandy environments in this region.
Polyphylla nigra
Polyphylla nigra is a scarab beetle in the family Scarabaeidae, described by Casey in 1914. It belongs to the genus Polyphylla, commonly known as lined June beetles, which are characterized by large body size and sexually dimorphic antennae. The species is distributed in western North America and parts of Mexico. Like other members of its genus, males likely possess enlarged, fan-like antennae used to detect female sex pheromones.
Polyphylla pottsorum
Polyphylla pottsorum is a species of scarab beetle in the family Scarabaeidae. It is a member of the diverse genus Polyphylla, commonly known as lined June beetles, which are characterized by their large size and distinctive antennae. The species was described by Hardy in 1978.
Polyphylla pubescens
Eglin Uplands Scarab Beetle
Polyphylla pubescens is a rare, endemic scarab beetle restricted to the upland habitats of Eglin Air Force Base and adjacent inland areas in the Florida panhandle. Adults are moderately sized for the genus, with males measuring 17.5–19 mm and females slightly larger at 19–20 mm. The species is distinguished from congeners by a strong lateral elytral margin that extends to the base. Like other members of the genus Polyphylla, males possess greatly enlarged, fan-like antennae used to detect female sex pheromones, while females are likely flightless and remain buried in sandy substrates. The species is part of the pubescens species group within Polyphylla.
Polyphylla sobrina
Polyphylla sobrina is a species of scarab beetle in the family Scarabaeidae, commonly known as the ten-lined June beetle. It is native to western North America, with documented occurrences in California, Nevada, and Utah. The species belongs to a genus characterized by males with enlarged, fan-like antennae used to detect female sex pheromones. Research on this species has been notably challenging due to the extremely small quantities of its pheromone, which has resisted isolation and structural identification for decades.
Polyphylla uteana
Coral Pink Sand Dunes June Beetle
Polyphylla uteana is a large scarab beetle endemic to the Coral Pink Sand Dunes in southwestern Utah. Males possess exceptionally developed lamellate antennae with seven highly elongate plates that fan open to detect female pheromones. The species is nocturnal and attracted to ultraviolet light. Like other Polyphylla species, females are likely flightless and rarely encountered.
Rhizotrogini
Rhizotrogini is a tribe of scarab beetles within the subfamily Melolonthinae, established by Burmeister in 1855. The tribe contains genera distributed across the Palearctic region, including Europe, North Africa, and Asia. Several genera within Rhizotrogini contain species of agronomic importance, particularly in India where members are considered June beetles. The tribe has been subject to recent taxonomic revision, with species reclassified between genera and new species described from biogeographically significant regions such as Sardinia and Iran.
Serica anthracina
Serica anthracina is a small scarab beetle in the family Scarabaeidae, described by LeConte in 1856. Adults measure 5–8.5 mm in length and exhibit variable coloration ranging from uniform testaceous to black. The species is distributed across western North America, from the Canadian prairies through the Rocky Mountain region to the Pacific coast.
Serica aspera
Serica aspera is a species of scarab beetle in the family Scarabaeidae, described by Dawson in 1921. It belongs to the genus Serica, a large and taxonomically challenging group of chafers commonly known as May beetles or June beetles. Adults are distinguished from close relatives by subtle morphological differences, particularly in antennal structure. The species has a restricted distribution in the southeastern United States.
Serica atracapilla
Serica atracapilla is a small scarab beetle in the family Scarabaeidae, distributed across eastern and central North America. Adults measure approximately 10 mm in length and are characterized by their chestnut-brown coloration and polished, shining upper surface lacking any silky or pruinose luster. The species has been recorded from 19 U.S. states and 7 Canadian provinces, indicating a broad geographic range within the Nearctic region.
Serica campestris
Serica campestris is a small scarab beetle species in the family Scarabaeidae, first described by Dawson in 1919. Adults measure approximately 8.5 mm in length and are characterized by their very dark mahogany coloration with a bare, polished, and shining upper surface that lacks any sericeous or pruinose luster. The species is known from a limited distribution in the central United States.
Serica vespertina
Serica vespertina is a small scarab beetle in the family Scarabaeidae, measuring approximately 8.5 mm in length. It is characterized by its uniformly light brown, polished, and shining appearance. The species is distributed across North America, with two recognized subspecies showing distinct geographic ranges in the eastern and central United States.
Serica vespertina accola
Serica vespertina accola is a subspecies of scarab beetle in the family Scarabaeidae, described by Dawson in 1921. It belongs to a genus of small, brownish beetles commonly known as May beetles or June beetles. The subspecies is documented from North America, though specific details about its biology and ecology remain limited in available sources.
Thyce
May beetles, junebugs
Thyce is a genus of scarab beetles in the family Scarabaeidae, commonly known as May beetles or junebugs. The genus contains at least two described species: Thyce deserta and Thyce squamicollis. These beetles belong to the subfamily Melolonthinae, a diverse group of scarabs whose larvae typically develop in soil. Species in this genus are native to North America.
Thyce deserta
Thyce deserta is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It was described by Hardy in 1974 and is known from California, USA. As a member of the genus Thyce, it belongs to a group of melolonthine scarabs found in western North America.
Warwickia
May beetles, junebugs
Warwickia is a genus of scarab beetles in the subfamily Melolonthinae, established in 2005. It contains one described species, Warwickia pilosa. The genus belongs to the tribe Warwickiini, which was erected to accommodate this taxon. Warwickia represents a relatively recent addition to the classification of New World scarab beetles.