Weevil
Guides
Euplatypus pini
Euplatypus pini is a small ambrosia beetle (Curculionidae: Platypodinae) originally described as Platypus pini by Hopkins in 1905 and later transferred to Euplatypus by Bright & Skidmore in 2002. Like other ambrosia beetles, it excavates galleries in wood and cultivates symbiotic fungi as a food source for its larvae. The species name indicates an association with pine (Pinus) hosts.
Eurhinus magnificus
Jewel Weevil, Iridescent Weevil
Eurhinus magnificus, commonly known as the jewel weevil, is a brilliantly colored weevil native to Central America. Adults are small (5–6 mm long, 3–4 mm wide) with striking metallic blue-green bodies accented by metallic red-copper on the humeri, elytra apex, pronotum, rostrum, and legs. The species was first described by Leonard Gyllenhaal in 1836 and has been introduced to southern Florida, where it was first detected in 2002. It is a gall-forming herbivore whose larvae develop within stem galls on its primary host plant, Cissus verticillata.
Eurhoptus
hidden snout weevils
Eurhoptus is a genus of hidden snout weevils in the family Curculionidae. The genus was established by LeConte in 1876. A major taxonomic revision in 2018 by Anderson and Caterino resurrected one species and described five new species, bringing the total to at least eight described species. The genus is part of the diverse weevil fauna of North America.
Eurhoptus curtus
Eurhoptus curtus is a species of weevil in the family Curculionidae, described by Hamilton in 1893. It belongs to a genus of small weevils found in North America. The species is poorly documented in scientific literature and appears rarely in collections or observations.
Euscepes
hidden snout weevils
Euscepes is a genus of hidden snout weevils in the family Curculionidae, containing at least 20 described species. The genus includes significant agricultural pests, most notably Euscepes postfasciatus (West Indian sweetpotato weevil), which infests sweet potato crops across tropical and subtropical regions. Research on this genus has focused heavily on reproductive behavior and sterile insect technique applications for pest management.
Euscepes porcellus
hidden snout weevil
Euscepes porcellus is a species of hidden snout weevil in the family Curculionidae, described by Boheman in 1872. It is native to North America. Members of the genus Euscepes are associated with sweet potato and related plants, though specific ecological details for this species remain limited.
Eutrichapion
Eutrichapion is a genus of small weevils in the family Brentidae, containing approximately eight described species. Members are characterized by a pear-shaped body form typical of the subfamily Apioninae. The genus was established by Reitter in 1916 and is distributed across parts of Europe and North America.
Eutrichapion huron
Eutrichapion huron is a small weevil species in the family Brentidae, formerly classified in Apionidae. It belongs to a genus of seed-feeding weevils associated with leguminous plants. The species was described by Fall in 1898 and is known from Canadian prairie provinces and Ontario.
Evotus
Evotus is a genus of broad-nosed weevils established by LeConte in 1874. The genus contains at least one described species, E. naso. As members of the subfamily Entiminae, these weevils are characterized by their broad, short rostrum (snout) and elbowed antennae. The genus is placed in the tribe Phyllobiini within the family Curculionidae, the largest family of beetles.
Exapion
seed weevils
Exapion is a genus of straight-snouted weevils in the family Brentidae. Species are specialized seed predators of leguminous plants, particularly members of the Fabaceae tribe Genisteae. Several species have been employed as biological control agents against invasive shrubs. The genus was separated from Apion based on morphological and genetic evidence.
Fallapion bischoffi
Fallapion bischoffi is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion belongs to the subfamily Apioninae, a group of small weevils commonly known as seed weevils or apionids. As a member of the Brentidae, this species possesses the characteristic elongated snout (rostrum) typical of the family. Information regarding the specific biology and distribution of this species is limited in available sources.
Fallapion funereum
Fallapion funereum is a species of straight-snouted weevil in the family Brentidae. As a member of the genus Fallapion, it belongs to a group of small weevils characterized by elongated rostrums. Very few documented observations of this species exist, and its biology remains poorly known. The specific epithet 'funereum' (Latin for 'funeral' or 'deathly') likely refers to its dark coloration.
Fallapion impunctistriatum
Fallapion impunctistriatum is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion comprises small weevils characterized by elongated rostra and reduced wings. Species in this genus are associated with woody plants, though specific ecological data for F. impunctistriatum remain limited. The species epithet 'impunctistriatum' refers to the absence of punctate striae on the elytra, a distinguishing morphological feature.
Fallapion obsoletum
Fallapion obsoletum is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion comprises small weevils, and this species is distinguished by its relatively unmarked, dull coloration implied by the specific epithet "obsoletum" (meaning worn or indistinct). Like other brentids, it possesses an elongated rostrum and lacks the elbowed antennae typical of true weevils (Curculionidae). Published records for this species are sparse, and its biology remains poorly documented.
Faustinus cubae
Faustinus cubae is a species of weevil in the family Curculionidae, originally described by Boheman in 1844. The specific epithet 'cubae' suggests Cuban origin, though contemporary distribution records indicate presence in North America, particularly the conterminous 48 United States. The genus Faustinus is poorly documented in public literature, with limited biological or ecological information available. As a member of the hyperdiverse weevil family, it likely shares general characteristics of small to medium-sized beetles with the distinctive elongated rostrum typical of Curculionidae.
Gastrotaphrus barberi
Gastrotaphrus barberi is a species of weevil in the family Curculionidae, first described by Buchanan in 1936. It belongs to a genus of small weevils whose members are associated with fungi and decaying plant material. The species has been recorded in North America, including British Columbia, Canada. Very little is known about its specific biology or ecology.
Geodercodes
Geodercodes is a genus of broad-nosed weevils in the family Curculionidae, established by Casey in 1888. The genus contains at least two described species: G. hispidus (Horn, 1894) and G. latipennis (Casey, 1888). As members of the subfamily Entiminae, these weevils are characterized by their broad, short rostrums. The genus is relatively poorly documented, with limited biological and ecological information available.
Geraeus coarctatus
Geraeus coarctatus is a species of weevil in the family Curculionidae, described by G.C. Champion in 1908. The genus Geraeus belongs to the superfamily Curculionoidea, the largest group of weevils. Information regarding its biology, distribution, and ecology remains extremely limited in published literature.
Geraeus patagoniensis
Geraeus patagoniensis is a species of weevil in the family Curculionidae, one of the most diverse families of beetles. The genus Geraeus comprises small, compact weevils distributed primarily in the Americas. This species is distinguished by its specific epithet referencing Patagonia, indicating a southern South American distribution. Based on genus-level characteristics, members of Geraeus possess a rounded body form and relatively short rostrum compared to many other weevils.
Geraeus picumnus
flower weevil
Geraeus picumnus is a species of flower weevil in the beetle family Curculionidae, described by Champion in 1908. The species is provisionally accepted taxonomically and has been documented through 261 iNaturalist observations. It belongs to a genus of weevils associated with flowers and vegetation.
Gerstaeckeria
Cactus Weevils
Gerstaeckeria is a genus of weevils in the family Curculionidae, commonly known as cactus weevils. The genus contains more than 40 described species. Members of this genus are associated with Opuntia cacti as hosts. The genus was established by Champion in 1905.
Gerstaeckeria hubbardi
cactus weevil
Gerstaeckeria hubbardi is a species of hidden snout weevil in the family Curculionidae. It is a documented pest of Opuntia cacti, with larvae feeding internally on cactus tissues. The species occurs in North America, with records from the southern United States including Florida. It was described by Pierce in 1912 and is classified in the genus Gerstaeckeria, which contains cactus-associated weevils.
Gerstaeckeria infrequens
Gerstaeckeria infrequens is a species of weevil in the family Curculionidae, described by O'Brien in 1970. The species epithet 'infrequens' (Latin for 'infrequent' or 'rare') suggests it may be uncommon in collections or field observations. Like other members of the genus Gerstaeckeria, it is likely associated with cactus hosts. The species is provisionally accepted in taxonomic databases with records from North America.
Gerstaeckeria knullorum
Gerstaeckeria knullorum is a species of hidden snout weevil described by Sleeper in 1954. It belongs to the family Curculionidae, the largest family of beetles. The species is known from North America, though specific details about its biology remain poorly documented.
Gerstaeckeria nobilis
Gerstaeckeria nobilis is a species of hidden snout weevil in the beetle family Curculionidae, first described by Pierce in 1912. The species belongs to the genus Gerstaeckeria, a group of weevils characterized by their concealed rostrum. It is distributed in North America. Published information regarding its biology, ecology, and specific habitat requirements remains limited.
Gerstaeckeria porosa
hidden snout weevil
Gerstaeckeria porosa is a species of hidden snout weevil described by Pierce in 1912. It belongs to the family Curculionidae, one of the largest families of beetles. The species is known from North America, though specific details about its biology remain sparse.
Gerstaeckeria unicolor
hidden snout weevil
Gerstaeckeria unicolor is a species of weevil in the family Curculionidae, described by Fisher in 1928. It belongs to the genus Gerstaeckeria, commonly known as hidden snout weevils. The species is provisionally accepted in taxonomic databases and has been recorded from North America.
Glocianus
minute seed weevils
Glocianus is a genus of minute seed weevils (Curculionidae) comprising approximately 15 described species. The genus is primarily known through detailed study of G. punctiger, a specialist herbivore associated with dandelion (Taraxacum officinale). Larvae develop within dandelion inflorescences, feeding first as internal stalk borers then as seed predators in flowerheads before pupating underground. The genus serves as a model system for studying tritrophic interactions and urban ecosystem dynamics.
Gonipterinae
Gonipterinae is a subfamily of weevils within Curculionidae. Members are primarily associated with Eucalyptus trees, with several species recognized as significant forestry pests. The subfamily includes economically important genera such as Gonipterus. Many species have been inadvertently introduced to regions outside their native Australian range.
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.
Grypus
marsh weevils
Grypus is a genus of marsh weevils (family Brachyceridae) comprising approximately 10 described species. These beetles are associated with wetland and marsh habitats. The genus was established by Germar in 1817. Species in this genus include G. equiseti, G. brassicae, and G. brunnirostris, among others.
Grypus equiseti
horsetail weevil
Grypus equiseti is a weevil species native to Europe that feeds exclusively on horsetail plants (Equisetum spp.). It has been introduced to New Zealand as a biological control agent targeting field horsetail (Equisetum arvense), an invasive weed in that country. The species is notable for its specialized diet and documented success in classical biological control programs.
Gymnognathus
fungus weevils
Gymnognathus is a genus of fungus weevils (family Anthribidae) comprising more than 90 described species. Members of this genus are predominantly associated with tropical moist forests, with some species occurring in subtropical humid forests at orographic rain barriers. At least one species, G. barclayi, exhibits apparent mimicry of calyptrate flies based on pronotal coloration patterns.
Haplorhynchites
head-clipping weevils, leaf and bud weevils
Haplorhynchites is a genus of leaf and bud weevils in the family Attelabidae, comprising ten recognized species. The genus is best known through Haplorhynchites aeneus, commonly called the sunflower head-clipping weevil, which exhibits a distinctive reproductive behavior where females girdle plant stems below the flower head to facilitate larval development. Members of this genus are associated with prairie ecosystems and sunflower plants, with most species described from North America.
Haplorhynchites pseudomexicanus
Haplorhynchites pseudomexicanus is a species of leaf-rolling weevil in the family Attelabidae. The genus Haplorhynchites comprises approximately 40 species distributed primarily in the New World, with most species occurring in Central and South America. H. pseudomexicanus was described by Hamilton in 1974 and is currently known from limited collection records. Like other attelabid weevils, members of this genus are associated with various host plants where adults feed on foliage and females prepare leaf rolls or other structures for oviposition.
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.
Heilus
Heilus is a genus of weevils (Curculionidae: Molytinae: Molytini) established by Kuschel in 1955. The genus contains fourteen described South American species, with eleven species redescribed in a 2020 taxonomic review based primarily on Brazilian specimens. Species identification relies on integument texture and patterns of maculation. The type species is Heilus inaequalis (Boheman, 1836). Some species are associated with economically important plants, including avocado and cacao.
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.
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.
Heterobrenthus
Heterobrenthus is a genus of straight-snouted weevils (family Brentidae) established by Sharp in 1895. The genus contains at least three described species distributed in Central America and the southern United States. As members of Brentidae, these weevils possess elongated, non-geniculate antennae and an extended rostrum, distinguishing them from the more familiar Curculionidae (true weevils).
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.
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.