Chrysomelidae
Guides
Neocrepidodera robusta
Neocrepidodera robusta is a species of flea beetle in the leaf beetle family Chrysomelidae. It was described by LeConte in 1874. The species is known from North America, with records from western and central Canadian provinces including Alberta, British Columbia, and Manitoba. As a member of the subfamily Alticinae, it possesses the enlarged hind femora characteristic of flea beetles, enabling jumping locomotion.
Neofidia cana
Neofidia cana is a species of leaf beetle in the family Chrysomelidae. The genus Neofidia was established relatively recently, with species transferred from related genera based on morphological and phylogenetic studies. This species is part of a group of Neotropical leaf beetles. Records of this species remain sparse, with limited observational data available.
Neofidia humeralis
Neofidia humeralis is a species of leaf beetle in the family Chrysomelidae. It was first described by French entomologist Édouard Lefèvre in 1877, originally as two separate species (Fidia humeralis and Fidia plagiata) that were later synonymized. The species occurs in the southwestern United States and Mexico, with records from Arizona, New Mexico, and southward through the Sierra Madre mountain systems to Oaxaca.
Neofidia longipes
Neofidia longipes is a leaf beetle species in the family Chrysomelidae, found in eastern North America. It has been documented feeding on a diverse range of host plants including American holly (Ilex opaca), willows (Salix), soybeans, and several members of the grape family (Vitaceae). The species is morphologically similar to Neofidia rileyorum, with females of the two species being indistinguishable without associated males. Both species occur sympatrically along portions of the Appalachian Mountains and in parts of Ohio and Alabama.
Neofidia lurida
grape rootworm
Neofidia lurida, commonly known as the grape rootworm, is a leaf beetle in family Chrysomelidae. It is distributed across eastern North America, extending south to Mexico and north to Quebec. The species is recognized as an economic pest of grape cultivation due to larval feeding damage on roots. Adults are small, hairy beetles active in late spring and early summer.
Neofidia texana
Neofidia texana is a leaf beetle in the family Chrysomelidae, restricted to central and east-central Texas. It was originally described in 1934 by Charles Frederic August Schaeffer as a variety of Fidia viticida, but is now recognized as a distinct species. The species is associated with plants in the grape family (Vitaceae).
Neogalerucella lineola
Neogalerucella lineola is a species of leaf beetle in the family Chrysomelidae. The species is currently classified under the genus Neogalerucella, though it was historically placed in Galerucella. It belongs to a group of beetles commonly known as leaf beetles, which are primarily herbivorous and often associated with specific host plants. The taxonomic status of this species as a synonym of Galerucella lineola indicates ongoing revisions in the classification of this genus group.
Neohaemonia
Pale pondweed leaf beetles
Neohaemonia is a genus of aquatic leaf beetles in the family Chrysomelidae, established by Székessy in 1941. The genus contains at least four described species distributed in North America. Members are commonly known as pale pondweed leaf beetles. These beetles are associated with aquatic habitats and feed on pondweeds (Potamogeton species).
Neohaemonia nigricornis
Neohaemonia nigricornis is an aquatic leaf beetle in the family Chrysomelidae, subfamily Donaciinae. The species inhabits freshwater environments in North America, with a distribution spanning the northern United States and southern Canada. As a member of the tribe Haemoniini, it shares adaptations for aquatic life with related genera, though specific biological details remain poorly documented in published literature.
Neolema cordata
Neolema cordata is a species of leaf beetle in the family Chrysomelidae, first described by White in 1993. It is native to North America, with confirmed records from Ontario, Canada. As a member of the leaf beetle family, it likely feeds on plant material, though specific host associations remain undocumented. The genus Neolema is relatively small and understudied compared to related genera.
Neolema dorsalis
Neolema dorsalis is a species of leaf beetle in the family Chrysomelidae. It has a broad geographic distribution spanning the Caribbean, Central America, North America, and South America. The species was originally described as Crioceris dorsalis by Olivier in 1791. It belongs to a genus of leaf beetles, with over 1,000 iNaturalist observations documenting its presence across its range.
Neolochmaea
Neolochmaea is a genus of skeletonizing leaf beetles in the family Chrysomelidae, established by Laboissière in 1939. The genus contains three described species: N. brevicornis, N. guerini, and N. obliterata. These beetles are restricted to the Neotropical region. The genus belongs to the tribe Alticini, commonly known as flea beetles, though specific behavioral traits of this genus remain poorly documented.
Neolochmaea dilatipennis
Neolochmaea dilatipennis is a leaf beetle (Chrysomelidae) described by Jacoby in 1886. The genus Neolochmaea comprises small to medium-sized leaf beetles primarily distributed in the Neotropical region. This species has been recorded across the Caribbean, North America, and South America. Available observation data suggests it is relatively well-documented, with over 800 records on iNaturalist.
Nesaecrepida
Nesaecrepida is a genus of flea beetles (Chrysomelidae) established by Blake in 1964. The genus contains two described species: Nesaecrepida asphaltina and Nesaecrepida infuscata. These beetles are found in North America, Mexico, and the West Indies. As members of the flea beetle tribe Alticini, they possess enlarged hind femora adapted for jumping.
Nesaecrepida asphaltina
Nesaecrepida asphaltina is a flea beetle in the family Chrysomelidae, first described by Suffrian in 1868. It belongs to a genus of small leaf beetles distributed across tropical and subtropical regions. The species has been documented in the Caribbean, Central America, and North America based on collection records. Very few observations exist in community science databases.
Nesaecrepida infuscata
Nesaecrepida infuscata is a flea beetle in the family Chrysomelidae, first described by Schaeffer in 1906. The species is documented from Central America and North America. As a member of the flea beetle tribe Alticini, it possesses enlarged hind femora adapted for jumping. Available records are sparse, with limited observational data.
Octotoma
Octotoma is a genus of tortoise beetles and hispines (Coleoptera: Chrysomelidae) comprising approximately 11–12 described species. Members of this genus are leaf-mining beetles with documented associations to Lantana camara, an invasive weed. Several species, notably O. championi and O. scabripennis, have been extensively studied and employed as biological control agents. The genus exhibits a leaf-mining larval phase followed by free-living, leaf-chewing adults.
Octotoma plicatula
Trumpet Creeper Leafminer, Trumpet Creeper Leaf Miner
Octotoma plicatula is a leaf beetle in the family Chrysomelidae. The common name 'Trumpet Creeper Leafminer' reflects its association with Campsis radicans, the trumpet creeper vine. The species is widespread in eastern and central North America.
Odontota
locust leaf miners
Odontota is a genus of leaf beetles in the family Chrysomelidae, comprising approximately eight to nine described species. The genus includes notable agricultural and forestry pests, particularly species that mine leaves of leguminous trees. The most well-known species, Odontota dorsalis (locust leaf miner), feeds on black locust (Robinia pseudoacacia) and related species, causing distinctive "scorched" foliage damage. Several species have been documented with specialized behaviors including extended copulation and post-copulatory mate guarding.
Odontota dorsalis
locust leaf miner, locust leafminer
Odontota dorsalis, commonly known as the locust leaf miner, is a leaf beetle in the family Chrysomelidae. It is native to North America and feeds primarily on black locust (Robinia pseudoacacia) and related species in the Fabaceae family. The beetle is known for producing distinctive 'scorched' damage on host trees, caused by both adult skeletonization and larval leaf mining. Two generations occur annually in most of its range.
Odontota floridana
Odontota floridana is a species of leaf beetle in the family Chrysomelidae. It was described by Butte in 1968. The species is known from a limited number of observations in North America, with records from the southeastern United States.
Odontota horni
soybean leafminer
Odontota horni is a leaf beetle in the family Chrysomelidae, commonly known as the soybean leafminer. It is found across a broad swath of eastern and central North America, with records from 28 U.S. states and the District of Columbia. The species is associated with leguminous host plants, including several Desmodium species, Tephrosia virginiana, and Glycine max (soybean), which gives it its common name.
Odontota scapularis
orange-shouldered leaf miner, orange-shouldered leafminer
Odontota scapularis, commonly known as the orange-shouldered leaf miner, is a leaf beetle in the family Chrysomelidae. The species is found across eastern and central North America, with records from Canada (Ontario) and numerous U.S. states. Larvae mine within leaves while adults feed externally on foliage. The species has been documented feeding on Apios americana (groundnut), a leguminous vine.
Odontota signaticollis
Odontota signaticollis is a leaf beetle in the family Chrysomelidae, known from Honduras and central Mexico. The species has been documented from Mexico City, Durango, and Puebla. Its biology and ecology remain poorly studied compared to congeners such as the locust leafminer.
Omophoita cyanipennis
Eight-spotted Flea Beetle
Omophoita cyanipennis, commonly known as the eight-spotted flea beetle, is a species of flea beetle in the family Chrysomelidae. The species was described by Fabricius in 1798. It is distributed across the Caribbean, Central America, and North America. Two subspecies are recognized: O. c. cyanipennis and O. c. octomaculata.
Ophraea
Ophraea is a genus of skeletonizing leaf beetles in the family Chrysomelidae. The genus contains approximately eight described species, with twelve species names listed in taxonomic records. Members are distributed across North America and the Neotropics. These beetles are characterized by their leaf-feeding behavior, specifically skeletonizing plant tissue between leaf veins.
Ophraea rugosa
Ophraea rugosa is a leaf beetle in the family Chrysomelidae, first described by Jacoby in 1886. The species has a transcontinental distribution spanning from the southwestern United States through Mexico to Central America. It is one of approximately 13 species in the genus Ophraea, a group of leaf beetles primarily distributed in the Neotropical and Nearctic regions.
Ophraella bilineata
Skeletonizing leaf beetle
Ophraella bilineata is a species of skeletonizing leaf beetle in the family Chrysomelidae. The species is characterized by its distinctive striped elytra and is found across North America. As a member of the Galerucinae subfamily, it exhibits the typical leaf beetle morphology with compact body form and herbivorous feeding habits.
Ophraella conferta
Crowded Leaf Beetle
Ophraella conferta is a skeletonizing leaf beetle in the family Chrysomelidae, commonly known as the Crowded Leaf Beetle. The species is distributed across North America, with records from Canada (Alberta, Manitoba, New Brunswick) and the United States. As a member of the genus Ophraella, it shares the characteristic leaf-feeding habits of this group, though specific host plant associations for this species are not well documented in the available literature.
Ophraella notata
Boneset Leaf Beetle
Ophraella notata is a skeletonizing leaf beetle in the family Chrysomelidae, commonly known as the Boneset Leaf Beetle. It has a documented association with Eupatorium perfoliatum (boneset) as its host plant. The species ranges across eastern and central North America, from New Mexico to Florida and north to New Brunswick and Wyoming.
Ophraella notulata
Marsh Elder Leaf Beetle
Ophraella notulata is a Nearctic skeletonizing leaf beetle in the family Chrysomelidae, found in Gulf Coast states of the United States and Mexico. It was previously described as O. integra (LeConte), now synonymized with O. notulata (Fabricius). The species is specialized on host plants in the Asteraceae family, primarily Iva frutescens (marsh elder), with documented ability to utilize Ambrosia artemisiifolia (ragweed) as an alternative host. Research has demonstrated complex transgenerational effects of host plant on offspring fitness and behavior.
Oulema concolor
Oulema concolor is a species of leaf beetle in the family Chrysomelidae, first described by J.L. LeConte in 1884. It is distributed across Central America and North America. The genus Oulema belongs to the subfamily Criocerinae, commonly known as cereal leaf beetles and their relatives. As with many Oulema species, detailed biological information remains limited in published literature.
Oulema elongata
Oulema elongata is a species of leaf beetle in the family Chrysomelidae, described by R. White in 1993. The species belongs to the subfamily Criocerinae, a group commonly known as cereal leaf beetles and allies. Members of the genus Oulema are typically associated with monocot plants, particularly grasses. Very few observations of this species have been documented, with only two records in iNaturalist as of the knowledge cutoff.
Oulema maculicollis
Oulema maculicollis is a leaf beetle in the family Chrysomelidae, subfamily Criocerinae. The species is native to North America. As a member of the genus Oulema, it belongs to a group of leaf beetles commonly known as cereal leaf beetles, though specific ecological details for this species remain poorly documented in available sources.
Oulema margineimpressa
Oulema margineimpressa is a species of leaf beetle in the family Chrysomelidae, subfamily Criocerinae. It was described by Schaeffer in 1933 and is known from North America. Members of the genus Oulema are commonly referred to as cereal leaf beetles, though specific ecological details for this species remain poorly documented.
Oulema melanopus
cereal leaf beetle
Oulema melanopus is a leaf beetle native to Eurasia that was introduced to North America in 1962, where it has since become a significant economic pest of small grain crops. The species is particularly damaging to spring wheat and oats, with outbreaks that are sporadic and difficult to predict. Larval feeding causes the most damage by skeletonizing leaves. Management relies on insecticides, though biological control using introduced parasitoids and host plant resistance breeding programs offer promising alternatives.
Oulema palustris
Marsh Cereal Leaf Beetle
Oulema palustris is a North American leaf beetle in the family Chrysomelidae. The species is a specialist herbivore associated with thistles, with larvae functioning as leaf miners and adults feeding externally on foliage. The specific epithet 'palustris' refers to marshy habitats, though the species' exact habitat preferences require further documentation.
Oulema sayi
Oulema sayi is a species of leaf beetle in the family Chrysomelidae. It was described by Crotch in 1873 and is known from North America. The genus Oulema includes numerous leaf beetle species, many of which are associated with grasses and cereal crops.
Pachybrachis alticola
Pachybrachis alticola is a species of case-bearing leaf beetle first described by Fall in 1915. It belongs to the genus Pachybrachis, a diverse group of small, rounded leaf beetles characterized by their compact bodies and often patterned elytra. The species name "alticola" suggests an association with higher elevations, though specific habitat preferences remain poorly documented. Like other members of its genus, it likely feeds on various herbaceous plants and shrubs.
Pachybrachis atomarius
Pachybrachis atomarius is a species of case-bearing leaf beetle in the family Chrysomelidae, distributed across North America. The genus Pachybrachis comprises small leaf beetles that carry their eggs and larvae in protective cases constructed from fecal material. This species has been documented in Canada (Alberta, Manitoba, Nova Scotia) and presumably occurs throughout much of the United States given the broad North American distribution reported.
Pachybrachis brevicornis
Pachybrachis brevicornis is a species of case-bearing leaf beetle in the family Chrysomelidae, described by Fall in 1915. The genus Pachybrachis contains numerous small leaf beetle species, many of which are poorly known biologically. The specific epithet "brevicornis" refers to short antennae, a trait distinguishing this species from congeners.
Pachybrachis caelatus
Pale Western Engraved Pachy
Pachybrachis caelatus is a species of case-bearing leaf beetle in the family Chrysomelidae, described by John Lawrence LeConte in 1858. It is found in North America. The species belongs to a genus of small leaf beetles commonly known as 'scriptured leaf beetles' due to their often intricate elytral patterns.
Pachybrachis coloradensis
Pachybrachis coloradensis is a species of case-bearing leaf beetle in the family Chrysomelidae. The species was described by Bowditch in 1909. It belongs to a genus commonly known as scriptured leaf beetles, recognized for their hardened forewings that form protective cases over the abdomen. Information specific to this species remains limited in published literature.
Pachybrachis convictus
Pachybrachis convictus is a species of case-bearing leaf beetle in the family Chrysomelidae, described by Fall in 1915. The genus Pachybrachis is among the largest genera of North American leaf beetles, with species typically associated with woody vegetation. This species has been documented in the southwestern United States, particularly in Arizona. Like other members of the genus, it is likely associated with oaks and related woody plants, though specific host records for this species are not well documented.
Pachybrachis cruentus
Pachybrachis cruentus is a species of case-bearing leaf beetle in the family Chrysomelidae, first described by John Lawrence LeConte in 1880. It belongs to the genus Pachybrachis, a diverse group of small leaf beetles commonly known as scriptured leaf beetles. The species is recorded from North America, though specific details about its biology and ecology remain limited in available literature.
Pachybrachis deceptor
Pachybrachis deceptor is a species of case-bearing leaf beetle in the family Chrysomelidae. It is part of the diverse genus Pachybrachis, which contains numerous small, often colorful species found primarily in North America. The species name "deceptor" suggests a potentially misleading or cryptic appearance. Like other members of its genus, it likely feeds on foliage of various plants and has a life cycle involving larvae that carry protective cases.
Pachybrachis dubiosus
Pachybrachis dubiosus is a species of case-bearing leaf beetle in the family Chrysomelidae. It was described by J.L. LeConte in 1880. The species belongs to a genus characterized by small, rounded leaf beetles that often carry egg cases or debris on their bodies. Records indicate presence in North America, with observations documented in the southwestern United States.
Pachybrachis femoratus
case-bearing leaf beetle
Pachybrachis femoratus is a species of case-bearing leaf beetle in the family Chrysomelidae. It is found in North America. The genus Pachybrachis is characterized by its case-bearing habit, where larvae construct protective cases from fecal material and exuviae. This species is one of many in a large genus of small leaf beetles.
Pachybrachis fortis
Pachybrachis fortis is a species of case-bearing leaf beetle in the family Chrysomelidae, described by Fall in 1915. It belongs to a genus characterized by the habit of carrying larval cases, a trait reflected in the common name "case-bearing leaf beetles." The species is documented from North America, though specific details regarding its biology and ecology remain limited in available sources.
Pachybrachis fuscipes
Pachybrachis fuscipes is a case-bearing leaf beetle in the family Chrysomelidae, described by Fall in 1915. It is native to North America and belongs to a genus of small, often colorful beetles commonly known as scriptured leaf beetles. The species has two recognized subspecies: P. f. fuscipes and P. f. purgatus. Like other members of its genus, it likely feeds on plant foliage, though specific host associations remain poorly documented.