Curculionidae
Guides
Gnathotrichus pilosus
Gnathotrichus pilosus is an ambrosia beetle species in the family Curculionidae, described by Wood in 1973. The species is distributed across North America and Middle America. Like other ambrosia beetles in the genus Gnathotrichus, it is presumed to cultivate fungal symbionts within wood galleries, though specific ecological details for this species remain limited in published literature.
Gonipterus
Eucalyptus Weevils, Eucalyptus Snout Beetles, Eucalyptus Snout Weevils
Gonipterus is a genus of weevils in the family Curculionidae, comprising approximately 20 described species native primarily to Australia. These insects are obligate plant feeders, with many species exhibiting high host specificity. Several species, notably Gonipterus platensis, G. pulverulentus, and G. gibberus, have become significant pests of Eucalyptus plantations globally, having spread to regions where these trees have been introduced. Taxonomic confusion has historically plagued the genus, with DNA studies in 2012 clarifying that populations previously identified as G. scutellatus in New Zealand, North America, western Europe, Africa, and eastern Europe actually represent distinct species. The genus has substantial economic importance in forestry, driving research into biological control agents such as the egg parasitoid Anaphes nitens.
Gonipterus scutellatus
eucalyptus snout beetle, eucalyptus weevil, gum tree weevil
Gonipterus scutellatus is a weevil species endemic to Australia that feeds and breeds exclusively on Eucalyptus trees. It is greyish-brown with a light-colored transverse band and measures approximately 13 mm in length. The species is frequently confused with closely related weevils—G. gibberus, G. platensis, and G. pulverulentus—which share common names and were historically misidentified as G. scutellatus. Populations outside Australia previously attributed to this species have been reidentified through DNA analysis: those in New Zealand, North America, and western Europe are G. platensis, while African and eastern European populations represent an undescribed species.
Gononotus
Gononotus is a genus of true weevils (Curculionidae) established by John Lawrence LeConte in 1876. The genus contains at least two described species: Gononotus angulicollis and Gononotus lutosus. Both species are North American in distribution.
Gononotus angulicollis
Gononotus angulicollis is a species of weevil in the family Curculionidae, described by Schwarz in 1894. The genus Gononotus is part of the diverse weevil fauna of North America. Very little specific information has been published about the biology or ecology of this particular species.
Hadromeropsis opalina
opaline broad-nosed weevil
Hadromeropsis opalina is a species of broad-nosed weevil in the beetle family Curculionidae, described by Horn in 1876. The species is known from North America. As a member of the broad-nosed weevil group (subfamily Entiminae), it possesses the characteristic elongated snout and elbowed antennae typical of the family. Published records and observations remain limited.
Hadroplontus litura
Canada thistle stem weevil, minute seed weevil
Hadroplontus litura is a stem-mining weevil in the family Curculionidae, widely known as the Canada thistle stem weevil. It is an endophagous herbivore that develops within the stems of its host plants. The species has been investigated extensively as a biological control agent for the invasive weed Canada thistle (Cirsium arvense). Research indicates it can complete its life cycle on multiple Cirsium species, including five native thistle species in the upper Midwest of North America, raising concerns about non-target impacts on native flora.
Haplostethops ellipsoideus
Haplostethops ellipsoideus is a species of weevil in the family Curculionidae, described by Casey in 1920. It belongs to a genus of small weevils whose members are poorly documented in the literature. The species has been recorded from Ontario, Canada, suggesting a northern distribution within North America. Very few biological details have been published for this species.
Heilipus
pine weevils
Heilipus is a genus of New World weevils in the family Curculionidae, containing over 280 described species distributed from the southern United States to northern Argentina. The genus is characterized by two primary feeding guilds: seed borers that develop within fruits of Lauraceae, and trunk borers that tunnel into stems of host trees. Several species are significant agricultural pests, particularly of avocado (Persea americana) and other commercial crops. The Brazilian Atlantic Forest has been proposed as a possible center of origin for the genus based on high diversity of both weevils and host plants.
Heilipus squamosus
Avocado Weevil, Avocado Tree Girdler
Heilipus squamosus is a large weevil native to the southeastern United States and the sole species of its genus occurring in North America. It gained notoriety as the "avocado tree girdler," causing significant economic damage to Florida avocado groves from the late 1930s through the 1950s, with larval feeding resulting in 8-10% tree mortality. The species was historically considered rare outside avocado-producing regions, but 21st-century citizen science observations have expanded its known range from eight to fifteen states. Long confused with the French Guiana species H. apiatus due to an erroneous distribution in the original 1807 description, this nomenclatural issue was clarified in 2022.
Hesperobaris
Hesperobaris is a genus of flower weevils in the family Curculionidae, established by Thomas Lincoln Casey in 1892. The genus currently contains a single described species, Hesperobaris suavis, found in North America. As flower weevils, members of this genus are associated with floral resources, though specific biological details remain poorly documented due to the genus's rarity and limited study.
Hesperobaris suavis
flower weevil
Hesperobaris suavis is a species of flower weevil in the beetle family Curculionidae, described by Thomas Lincoln Casey in 1892. It is known from North America. As a member of the flower weevil group, it is likely associated with flowering plants, though specific biological details remain poorly documented. The genus Hesperobaris is a small group within the diverse weevil family.
Heteroborips
Heteroborips is a genus of weevils in the family Curculionidae, established by Edmund Reitter in 1913. The genus belongs to the hyperdiverse beetle order Coleoptera. Records indicate presence in Sweden and the northeastern United States, though the genus remains poorly documented in scientific literature.
Hexarthrum
Hexarthrum is a genus of true weevils (Curculionidae) established by Wollaston in 1869. The genus contains approximately 10 described species distributed across Asia, Africa, and North America. One species, Hexarthrum ulkei (eastern wood weevil), is known from North America. Most species appear to be associated with woody plants, though specific ecological details remain poorly documented for the majority of species.
Hexarthrum ulkei
eastern wood weevil
Hexarthrum ulkei, commonly known as the eastern wood weevil, is a species of true weevil in the beetle family Curculionidae. It occurs in North America, with records from Ontario and Québec in Canada. The species has been documented with unusual host associations that expand its known ecological range beyond previously understood limits. As a member of the tribe Hexarthrini, it possesses the characteristic elongated rostrum typical of weevils.
Hilipinus
pine weevils
Hilipinus is a genus of weevils in the family Curculionidae, commonly known as pine weevils. The genus was established by G.C. Champion in 1902 and contains at least 50 described species. Members of this genus are associated with coniferous trees, particularly pines.
Hohonus lacteicollis
hidden snout weevil
Hohonus lacteicollis is a species of hidden snout weevil described by Kissinger in 1964. It belongs to the family Curculionidae, one of the largest families of beetles. The species is known from North America. Like other members of Curculionidae, it possesses the characteristic elongated rostrum (snout) with mouthparts at the tip.
Homorosoma
minute seed weevils
Homorosoma is a genus of minute seed weevils in the family Curculionidae, established by Frivaldszky in 1894. The genus contains approximately nine described species distributed across Europe and North America. Members are small beetles associated with seed feeding habits typical of the Ceutorhynchinae subfamily.
Homorosoma sulcipenne
minute seed weevil
Homorosoma sulcipenne is a species of minute seed weevil in the family Curculionidae. It is a small beetle species recorded from several Canadian provinces and territories. The species was described by John Lawrence LeConte in 1876. Observations of this species remain relatively sparse, with limited ecological documentation available.
Hormops abducens
Hormops abducens is a species of true weevil in the family Curculionidae, first described by John Lawrence LeConte in 1876. It is recorded from North America. As a member of the genus Hormops, it belongs to a group of weevils whose biology remains poorly documented.
Hormorini
Hormorini is a tribe of weevils within the subfamily Entiminae, established by Horn in 1876. The tribe comprises approximately 22 genera distributed across multiple continents. Members are classified in the family Curculionidae, the largest family of beetles. The tribe is characterized by morphological features typical of Entiminae, including a broad connection between the rostrum and head.
Hormorus
lily of the valley weevil (H. undulatus)
Hormorus is a genus of broad-nosed weevils (Curculionidae: Entiminae) established by Horn in 1876. The genus comprises at least two described species: Hormorus undulatus, commonly known as the lily of the valley weevil, and Hormorus saxorum. These weevils belong to the tribe Hormorini and are part of the diverse broad-nosed weevil subfamily Entiminae.
Hormorus undulatus
lily of the valley weevil
Hormorus undulatus, commonly known as the lily of the valley weevil, is a broad-nosed weevil in the family Curculionidae. The species was first described by Uhler in 1856 under the basionym Chlorophanus undulatus. It is distributed across parts of North America, with confirmed records from Alberta, Connecticut, Illinois, Indiana, and Iowa. As a member of the subfamily Entiminae, it possesses the characteristic short, broad rostrum typical of this group.
Huaca
Huaca is a genus of weevils in the family Curculionidae, described by Carl Johan Schoenherr in 1833. The genus belongs to the hyperdiverse weevil family, one of the largest families of organisms with over 40,000 described species. As a historically established genus in early coleopteran taxonomy, Huaca represents part of the 19th-century effort to classify the immense diversity of Neotropical weevils. The genus is currently accepted in modern taxonomic catalogs, though specific species-level diversity and biological details remain poorly documented in accessible literature.
Huaca apian
Huaca apian is a species of true weevil in the beetle family Curculionidae. It was described by Clark in 1993. The species is known to occur in North America. As a member of Curculionidae, it possesses the characteristic elongated rostrum typical of weevils.
Hylastes macer
root-feeding bark beetle
Hylastes macer is a bark beetle in the family Curculionidae, commonly known as the root-feeding bark beetle. It belongs to the subfamily Scolytinae, a group of beetles known for their association with woody plants. The species is native to North America, with records from Canada and the United States. As a member of the genus Hylastes, it is likely associated with coniferous hosts, though specific ecological details remain poorly documented.
Hylesinus
crenulate bark beetles
Hylesinus is a genus of bark beetles in the family Curculionidae comprising more than 180 described species. Members are commonly known as crenulate bark beetles and are primarily associated with woody plants, particularly ash (Fraxinus) and pistachio (Pistacia). Several species have been studied as pests of economic or ornamental importance.
Hylesinus aculeatus
eastern ash bark beetle
Hylesinus aculeatus, commonly known as the eastern ash bark beetle, is a species of bark beetle in the family Curculionidae. It is one of approximately 20 species in the genus Hylesinus, which are primarily associated with ash trees (Fraxinus spp.). The species is native to North America and has been documented across a broad geographic range from Canada through the United States. Like other bark beetles in this genus, it is likely a phloem feeder that develops under the bark of host trees, though specific biological details remain poorly documented in published literature.
Hylesinus fasciatus
crenulate bark beetle
Hylesinus fasciatus is a species of crenulate bark beetle in the family Curculionidae, first described by LeConte in 1868. It is native to North America, with confirmed records from Canada (Ontario) and the United States. As a member of the genus Hylesinus, it belongs to a group of bark beetles associated with woody plants.
Hylesinus mexicanus
Hylesinus mexicanus is a species of bark beetle in the family Curculionidae, described by Wood & Bright in 1992. It is one of several species in the genus Hylesinus, a group commonly referred to as crenulate bark beetles. The species is recorded from North America and Middle America. Like other members of its genus, it is associated with woody plants, though specific host associations for this species have not been documented in available sources.
Hylocurus
Hylocurus is a genus of bark beetles in the family Curculionidae, subfamily Scolytinae. The genus was established by Eichhoff in 1872 and contains approximately a dozen described species. Members of this genus are found in North America, with records from Mexico and the United States including California. Hylocurus species are associated with woody plants; H. hirtellus has been recorded from northern California black walnut (Juglans hindsii).
Hylocurus carinifrons
Hylocurus carinifrons is a species of bark beetle in the family Curculionidae, described by Atkinson in 1989. The species is known from North America. Like other members of the genus Hylocurus, it is associated with woody plants and belongs to the group commonly known as typical bark beetles.
Hylocurus hirtellus
Hylocurus hirtellus is a bark beetle (Scolytinae) described by Wood & Bright in 1992. It has been documented in Middle America and North America, including British Columbia, Canada. The species is known from a new host record involving northern California black walnut (Juglans hindsii), though detailed biological information remains limited.
Hylocurus parkinsoniae
Hylocurus parkinsoniae is a bark beetle species in the family Curculionidae, first described by Blackman in 1922. It belongs to the genus Hylocurus, a group of weevils associated with woody plants. The species is recorded from North America. Information on its biology and ecology remains limited.
Hylocurus rudis
Hylocurus rudis is a bark beetle species in the weevil family Curculionidae, described by Wood & Bright in 1992. It belongs to the genus Hylocurus, which contains ambrosia beetles that typically inhabit dead or dying wood. The species has been recorded in North America, specifically in the Canadian provinces of Ontario and Québec. Very limited biological information is available for this species, with only two observations documented in iNaturalist.
Hylurgops palliatus
Hylurgops palliatus is a bark beetle in the family Curculionidae that colonizes coniferous trees, primarily spruce (Picea) and pine (Pinus) species. It is a secondary bark beetle, meaning it attacks weakened, dying, or recently dead trees rather than healthy ones. The species uses host-specific monoterpene chemical cues to locate and select appropriate host trees. It vectors various fungi, including ophiostomatoid species, which play roles in its ecology and tree colonization.
Hylurgops porosus
Hylurgops porosus is a species of bark beetle in the family Curculionidae, described by Wood & Bright in 1992. It belongs to the genus Hylurgops, a group of weevils associated with coniferous trees. The species is known from western Canada with records in Alberta, British Columbia, and Saskatchewan. Very few observations exist in public databases, indicating it is either rare, cryptic, or under-recorded.
Hylurgops rugipennis
Hylurgops rugipennis is a small bark beetle in the weevil family Curculionidae, described by Mannerheim in 1843. It belongs to a genus associated with coniferous trees, though specific ecological details for this species remain poorly documented. Records indicate presence in North America, but comprehensive study of its biology is limited.
Hypera brunnipennis
Egyptian alfalfa weevil
Hypera brunnipennis, commonly known as the Egyptian alfalfa weevil, is a true weevil in the family Curculionidae. It is a significant agricultural pest of alfalfa (Medicago sativa) in certain regions, particularly in parts of the Middle East and North Africa. The species has been subject to biological control research focusing on its natural enemies, including parasitoid wasps and predatory insects. Its scientific name is frequently misspelled as 'brunneipennis' in the literature.
Hypera compta
Hypera compta is a species of true weevil in the family Curculionidae. It was described by Say in 1832. The species is currently treated as a synonym of Hypera rumicis in some taxonomic databases, though both names appear in literature. It is recorded from North America and has also been reported from Belgium. Very little is known about its specific biology or ecology.
Hypera diversipunctata
Hypera diversipunctata is a true weevil in the family Curculionidae, first described by Schrank in 1798. The species has a Holarctic distribution, occurring in both North America and Europe. Two subspecies have been recognized: H. d. educta and H. d. seigneurici. The genus Hypera includes several agriculturally significant species, though specific ecological details for H. diversipunctata remain poorly documented.
Hypera eximia
Hypera eximia is a weevil species in the family Curculionidae distinguished by its rare surface swimming behavior, an unusual adaptation among weevils. This behavior has been documented and studied for its morphological and phylogenetic implications within the genus Hypera. The species is poorly represented in observation databases, with only four records on iNaturalist. It has been synonymized under the genus Apodrosus as Apodrosus eximius in some taxonomic treatments.
Hypera paludicola
Hypera paludicola is a species of weevil in the family Curculionidae, described by Tuttler in 1973. It belongs to the genus Hypera, which contains several species associated with leguminous plants. The specific epithet 'paludicola' suggests an association with marsh or wetland habitats.
Hypera postica
Alfalfa Weevil
Hypera postica, the alfalfa weevil, is a small curculionid beetle native to Europe and a major pest of alfalfa in North America following accidental introductions. Adults measure 4–5.5 mm and are brown with a dark mid-dorsal stripe; larvae are yellowish-green with a black head and white dorsal stripe, reaching about 1 cm before pupation. The species causes significant economic damage through larval skeletonization of alfalfa foliage, with yield reductions up to 15%. Multiple biological control agents, particularly parasitoid wasps in the genus Bathyplectes, have been introduced to manage populations.
Hypera quadricollis
hibiscus flea beetle
Hypera quadricollis is a minute weevil species in the family Curculionidae, historically classified under flea beetle genera Chaetocnema and Crepidodera due to morphological similarities. The species is strongly associated with rosemallow (Hibiscus spp.), particularly Hibiscus lasiocarpus, where adults feed gregariously on foliage. First described from Florida in 1878, it has since been recorded across eastern and central North America including Missouri and Alberta. The species was synonymized under Chaetocnema quadricollis by White (1996) in his revision of North American Chaetocnema, though current taxonomic databases list it under Hypera.
Hypera rumicis
Dock Hyper Weevil
Hypera rumicis is a small true weevil in the family Curculionidae, known as the Dock Hyper Weevil. The species is native to Europe and has been introduced to North America. It is a specialist herbivore associated with dock and sorrel plants (Rumex spp.), where both larvae and adults feed on host tissues. The species has been investigated as a potential biological control agent for invasive Rumex weeds, though it can also cause damage to crops. Adults show complex behavioral responses to plant volatile compounds, with attraction and repellency depending on concentration and mating status.
Hypoborini
Hypoborini is a tribe of small bark beetles (Curculionidae: Scolytinae) established by Nüsslin in 1912. Recent molecular and morphological revision of the Afrotropical fauna revealed substantial undescribed diversity, including three new genera and seven new species. The tribe comprises two subtribes in the Afrotropical region: Xerasiborina (Xerasiborus, Nisiborus, tentatively Glochiphorus) and Hypoborina (Dacryostactus, Styracoptinus, Afrotrypetus, Corditarsus). Related Palearctic genera Hypoborus and Liparthrum occur in Mediterranean and Macaronesian regions. Phylogenetic analyses indicate an early Palaeocene origin with ancestral area split between Asia/Africa and Madagascar, followed by single colonization of Madagascar and subsequent recolonization of the African mainland.
Hypothenemus
Hypothenemus is a genus of bark beetles in the family Curculionidae containing more than 200 described species. The genus is most diverse in tropical and subtropical regions worldwide, with reduced representation in temperate areas of eastern North America and eastern Asia. Members are minute beetles, ranging from 0.6 mm to 2.2 mm in length, with males consistently smaller than females. The genus includes several economically significant species, most notably H. hampei (coffee berry borer), which is considered the most destructive insect pest of coffee globally.
Hypothenemus atomus
Hypothenemus atomus is a small weevil species in the family Curculionidae, first described by Hopkins in 1915. It belongs to a genus that includes several economically significant bark beetles, most notably the coffee berry borer (Hypothenemus hampei). The species has been recorded in Brazil, specifically in the states of Mato Grosso do Sul, Santa Catarina, and São Paulo. Information regarding its biology, ecology, and economic impact remains limited compared to better-studied congeners.
Hypothenemus californicus
Hypothenemus californicus is a small weevil in the family Curculionidae, first described by Hopkins in 1915. The species is distributed across North America, parts of South America, Africa, and the Galápagos Islands. Like other members of the genus Hypothenemus, it is likely associated with woody plants, though specific ecological details remain poorly documented. The species name references California, indicating the type locality or region of original description.