Curculionidae
Guides
Ellescus bipunctatus
Ellescus bipunctatus is a Holarctic weevil species in the tribe Ellescini. A recent taxonomic revision designated a neotype for this species and established E. borealis as its junior synonym. It is one of four valid Ellescus species in North America, where it occurs alongside the widespread E. ephippiatus, the west coast endemic E. californicus, and the newly described E. michaeli. The species has been distinguished from congeners using integrative taxonomy combining morphological and molecular data.
Ellescus michaeli
Ellescus michaeli is a weevil species described in 2023 from the genus Ellescus, a group of small to medium-sized weevils in the family Curculionidae. The species is known from a single iNaturalist observation, indicating it remains poorly documented in the scientific literature. As a recently described taxon, its biology and ecology have not been formally studied. The genus Ellescus is distributed across the Holarctic region, with species often associated with herbaceous vegetation.
Emphyastes fucicola
Emphyastes fucicola is a species of true weevil in the beetle family Curculionidae, described by Mannerheim in 1852. As a member of the largest family of beetles, it possesses the characteristic elongated snout (rostrum) typical of weevils. The species is documented from North America. Relatively few observations exist, with iNaturalist recording 46 observations.
Epacalles inflatus
Epacalles inflatus is a species of weevil in the family Curculionidae, described by Kissinger in 1964. The species was formerly classified under the genus Porrhodites as Porrhodites inflatus. Research has identified it as a potential specialist of the subnivium—the air pocket beneath winter snowpack—where it remains active during winter months and is rare or inactive during summer.
Ephelops triguttatus
Ephelops triguttatus is a species of weevil in the family Curculionidae, described by Dietz in 1891. The genus Ephelops is a small group within the weevil superfamily Curculionoidea. The specific epithet "triguttatus" refers to three spots or markings, likely describing a diagnostic color pattern on the elytra or pronotum. This species is provisionally accepted in taxonomic databases and is recorded from North America.
Epicaerus benjamini
Epicaerus benjamini is a species of broad-nosed weevil in the family Curculionidae, described by Pierce in 1913. It belongs to the tribe Geonemini within the subfamily Entiminae. The species is known from North America, with documented records from Texas.
Epicaerus formidolosus
Epicaerus formidolosus is a broad-nosed weevil in the family Curculionidae, subfamily Entiminae. The species was described by Boheman in 1842. It is recorded from the southeastern United States, specifically Alabama, Florida, Georgia, and South Carolina. As a member of the Geonemini tribe, it belongs to a group of flightless weevils with larvae that develop in soil.
Epicaerus mexicanus
Brown Leaf Notcher, Mexican Root Weevil
Epicaerus mexicanus is a species of broad-nosed weevil in the beetle family Curculionidae, commonly known as the brown leaf notcher or Mexican root weevil. It is found in North America, with records from Mexico including states such as Guanajuato, Guerrero, and Oaxaca. The species belongs to the subfamily Entiminae, a diverse group of weevils often associated with feeding on plant foliage and roots.
Episcirrus brachialis
Spot-necked Bumelia Weevil, hidden snout weevil
Episcirrus brachialis is a species of weevil in the family Curculionidae, described by Kissinger in 1964. It belongs to the group commonly known as hidden snout weevils. The species is native to North America. Little detailed biological information has been published for this species specifically.
Ericydeus
broad-nosed weevils
Ericydeus is a genus of broad-nosed weevils (Curculionidae: Entiminae: Naupactini) containing 16 described species distributed from the United States through Central America to Argentina. The genus was revised in 1995, revealing distinct biogeographic patterns: South American species form one clade and Central/North American species form another, with character evolution following a southern-to-northern direction. Species exhibit varied coloration including metallic green, coppery, and punctate patterns.
broad-nosed-weevilNaupactiniEntiminaeNeotropicalbiogeographycladisticsweevilColeopteraCurculionidaeAmericasmetallic-colorationpunctate-elytraPascoe-1880systematic-revision-199516-speciesphylogenetic-biogeographysouthern-northern-character-evolutionSouth-America-cladeCentral-America-cladeNorth-America-cladeE.-sedecimpunctatusE.-modestusE.-hancockiE.-schoenherriE.-yucatanusE.-roseiventrisE.-quadripunctatusE.-cupreolusE.-viridansE.-duodecimpunctatusE.-forreriE.-lautusE.-placidusE.-argentinensisE.-bahiensisE.-nigropunctatusE.-humeralis-synonymizedE.-modestus-viridans-elevatedE.-modestus-duodecimpunctatus-elevatedEricydeus lautus
Ericydeus lautus is a species of broad-nosed weevil in the beetle family Curculionidae. It was first described by LeConte in 1856. The species belongs to a predominantly New World genus distributed from North America through Central America to South America. Phylogenetic analysis places E. lautus in a clade with other North and Central American species, distinct from South American congeners.
Ericydeus placidus
Ericydeus placidus is a species of broad-nosed weevil in the family Curculionidae. It belongs to the tribe Naupactini, a group of New World weevils. The species was described by Horn in 1876 and is currently accepted as valid. Very little specific information has been published about its biology or ecology.
Erodiscini
Erodiscini is a tribe of weevils within the subfamily Curculioninae (Curculionidae), containing semi-aquatic species such as Ludovix fasciatus. The tribe includes the genus Sicoderus, which is diverse in the West Indies with over 75 described species. At least some members exhibit specialized surface swimming behavior using all three pairs of legs in a coordinated breast stroke-like motion.
Eubulus
hidden snout weevils
Eubulus is a genus of hidden snout weevils in the family Curculionidae, established by Kirsch in 1870. The genus contains at least 200 described species. These beetles are characterized by a concealed rostrum that is not visible from above, a trait that distinguishes them from many other weevil genera.
Eubulus bisignatus
hidden snout weevil
Eubulus bisignatus is a species of hidden snout weevil in the beetle family Curculionidae. The species was described by Thomas Say in 1832. It belongs to the subfamily Cryptorhynchinae, a group characterized by their ability to retract their rostrum into a ventral groove. The species has been documented in parts of North America including Ontario and Québec, Canada.
Eubulus parochus
hidden snout weevil
Eubulus parochus is a species of hidden snout weevil in the beetle family Curculionidae, first described by Herbst in 1797. It belongs to the genus Eubulus, a group of small weevils characterized by their concealed snout structure. The species is documented from eastern Canada with specific records from New Brunswick, Ontario, and Québec. Published observations of this species remain limited.
Eucerceris provancheri
Eucerceris provancheri is a species of solitary wasp in the tribe Cercerini (Philanthinae, Crabronidae). Like other members of the genus Eucerceris, it is a weevil wasp that hunts weevils (Curculionidae) to provision nests for its larvae. The species occurs in Central America and North America.
Eucyllus
Eucyllus is a genus of broad-nosed weevils established by Horn in 1876. The genus contains approximately eight described species distributed in western North America. As members of the subfamily Entiminae, these weevils possess the characteristic short, broad rostrum typical of the group. Species have been described from the late 19th century through 1972.
Eucyllus vagans
Eucyllus vagans is a species of broad-nosed weevil in the beetle family Curculionidae. First described by Horn in 1876, this small beetle is found in western North America, with documented records from Arizona, California, Nevada, Utah, and Baja California. As a member of the subfamily Entiminae, it possesses the characteristic short, broad snout typical of this group.
Eudiagogini
Eudiagogini is a tribe of broad-nosed weevils (Curculionidae: Entiminae) comprising approximately 98 extant species in 10 genera, with highest diversity in the Neotropics. The tribe is characterized by distinctive morphological synapomorphies including a cavernous prementum and a metaventrite bearing a spine-like swelling anterior to each metacoxa. Phylogenetic analyses based on morphology and molecular data (COI and ribosomal markers) confirm the monophyly of Eudiagogini, though the genus Chileudius has been excluded and placed as incertae sedis within Entiminae. The tribe has a fossil record in Eocene European amber, indicating a broader historical distribution.
Eudiagogus
Sesbania clown weevils, Clown Weevils
Eudiagogus is a genus of weevils in the family Curculionidae, commonly known as sesbania clown weevils. The genus comprises approximately five described species, including the distinctive Eudiagogus pulcher, known as the beautiful clown weevil. These weevils are associated with plants of the genus Sesbania, which serve as their primary food source.
Eudiagogus pulcher
Beautiful Clown Weevil, Sesbania Clown Weevil
Eudiagogus pulcher is a species of broad-nosed weevil in the beetle family Curculionidae, first described by Fåhraeus in 1840. It is commonly known as the Beautiful Clown Weevil or Sesbania Clown Weevil. The species is native to North America, with documented occurrence records from Alabama, Arizona, California, Florida, and Georgia. It is a moderately well-observed species with over 1,400 citizen science records on iNaturalist.
Eudociminus
pine weevils
Eudociminus is a genus of weevils (Coleoptera: Curculionidae) containing at least two described species. The genus includes the cypress weevil, Eudociminus mannerheimii, which is native to North America and associated with cypress trees. Published biological information for the genus is extremely limited.
Eudociminus mannerheimii
Cypress Weevil
Eudociminus mannerheimii, the cypress weevil, is a native North American beetle in the family Curculionidae. It breeds primarily in scarred, weakened, or fallen cypress trees and occasionally damages nursery stock and stump sprouts. Despite its potential to cause localized tree mortality, published biological information remains extremely limited.
Euhrychiopsis lecontei
Milfoil Weevil
A small submersed aquatic weevil native to North America, investigated as a biological control agent for invasive Eurasian watermilfoil. Adults and larvae feed on watermilfoil species, with larvae acting as stem borers that damage plant tissue. Populations occur naturally on native northern watermilfoil and have expanded to exotic Eurasian watermilfoil. The species exhibits plastic host preferences influenced by rearing experience, with faster development and larger adult sizes observed on Eurasian watermilfoil despite higher larval survivorship on native hosts.
Eulechriops
Eulechriops is a genus of true weevils (Curculionidae) established by J. Faust in 1896. The genus comprises more than 80 described species. The name is masculine per ICZN Article 30.1.4.3, which governs compound names ending in -ops. Species-level biology remains poorly documented.
Eulechriops minuta
Eulechriops minuta is a species of true weevil in the beetle family Curculionidae. It is native to North America. Very little is known about its specific biology, ecology, or behavior. The genus Eulechriops comprises small weevils, and this species follows that general morphological pattern.
Euophryum confine
Euophryum confine is a small weevil in the family Curculionidae. Originally described from New Zealand by Thomas Broun in 1880, it has since been synonymized under Pentarthrum confine in some taxonomic databases. The species belongs to a genus of wood-boring weevils. GBIF records indicate presence in the contiguous United States, though this may represent introduction or misidentification given its native range.
Euplatypus parallelus
Common Ambrosia Beetle
Euplatypus parallelus is a polyphagous ambrosia beetle in the weevil family Curculionidae. Native to Central and South America, it has spread invasively to Africa, tropical Asia, and other regions, likely via timber trade. Adults bore galleries into tree trunks and cultivate symbiotic fungi for food, causing wood staining and economic damage in forest plantations. The species is attracted to ethanol and plant volatiles, with flight activity strongly influenced by temperature and precipitation.
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.
Euscepes postfasciatus
West Indian sweetpotato weevil, hidden snout weevil, scarabee
Euscepes postfasciatus is a weevil species in the family Curculionidae that is a significant agricultural pest of sweet potato (Ipomoea batatas) across tropical and subtropical regions. The species has been extensively studied for its reproductive biology, including male-produced chemical signals that induce female post-mating unreceptivity and stridulatory communication during courtship. It is a target of sterile insect technique (SIT) eradication programs, particularly in Japan's Okinawa Prefecture, due to its economic impact on sweet potato cultivation.
Eustenopus villosus
yellow starthistle hairy weevil
Eustenopus villosus is a small weevil in the family Curculionidae, widely known as the yellow starthistle hairy weevil. It is native to southern Europe and the Mediterranean region and has been introduced to the western United States as a biological control agent against the invasive weed yellow starthistle (Centaurea solstitialis). Both adults and larvae feed on the plant's reproductive structures, with larvae capable of destroying nearly all developing seeds within a single flower head. The species is considered one of the more effective biocontrol agents for this noxious weed.
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.
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.
Gasterocercini
hidden snout weevils
Gasterocercini is a tribe of weevils within the family Curculionidae, commonly referred to as hidden snout weevils. The tribe contains at least four genera—Cophes, Episcirrus, Hohonus, and Rhynchus—with approximately eight described species. These weevils are part of the enormous radiation of snout beetles, though specific biological details for the tribe as a whole remain poorly documented.
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.