Weevil
Guides
Diamimus
Diamimus is a genus of broad-nosed weevils (family Curculionidae) established by Horn in 1876. The genus belongs to the tribe Byrsopagini within the subfamily Entiminae. At least one species, D. subsericeus, has been described. The genus has been recorded from the United States.
Diaprepes
Diaprepes weevils, citrus root weevils
Diaprepes is a genus of broad-nosed weevils in the family Curculionidae, subfamily Entiminae, tribe Eustylini. It belongs to the Exophthalmus genus complex. The genus contains approximately 16 described species, with Diaprepes abbreviatus being the most economically significant as a major agricultural pest of citrus and other crops in Florida and the Caribbean. The genus is native to the Caribbean region and has expanded its range to include parts of Central America and the southeastern United States.
Dietzella zimmermanni
minute seed weevil
Dietzella zimmermanni is a small weevil species in the family Curculionidae. Larvae are known to feed on leaves of specific host plants in the evening primrose family, including Oenothera pilosella, with this association representing the first documented larval host record for the species. The species occurs across North America with records from Canada and the United States.
Dietzianus
Dietzianus is a genus of true weevils (family Curculionidae) comprising at least two described species: D. liliputanus and D. pygmaeus. Both species were originally described by Dietz in 1891 and later transferred to this genus by Sleeper in 1953. The genus is currently classified with doubtful status in some taxonomic databases, suggesting potential taxonomic uncertainty or need for revision. No observations of this genus have been recorded in iNaturalist.
Dietzianus pygmaeus
Dietzianus pygmaeus is a species of true weevil (family Curculionidae) described by Dietz in 1891. The species is currently classified in the genus Dietzianus, though it was originally described under the genus Xanthus. It is known from North America, but detailed information about its biology, appearance, and ecology remains sparse in the available literature.
Dirabius rotundicollis
Dirabius rotundicollis is a species of flower weevil in the beetle family Curculionidae, described by Casey in 1920. The species is found in North America and is associated with flowers, though specific details about its biology remain poorly documented. As a member of the genus Dirabius, it belongs to a group of weevils commonly known as flower weevils.
Dirotognathus
Dirotognathus is a genus of broad-nosed weevils in the beetle family Curculionidae, established by Horn in 1876. The genus contains at least two described species: D. punctatus (Hatch, 1971) and D. sordidus (Horn, 1876). As members of the subfamily Entiminae, these weevils possess the characteristic short, broad rostrum typical of broad-nosed weevils. The genus is placed in the tribe Byrsopagini. Very few observations exist in biodiversity databases, suggesting it may be rarely encountered or understudied.
Discotenes nigrotuberculata
fungus weevil
Discotenes nigrotuberculata is a species of fungus weevil in the beetle family Anthribidae. The species was described by Schaeffer in 1904. It occurs in Central America and North America.
Dolurgus
Dolurgus is a genus of weevils in the family Curculionidae, established by W.J. Eichhoff in 1868. As a member of the Curculionoidea superfamily, it possesses the characteristic elongated snout (rostrum) typical of weevils. The genus is taxonomically accepted but poorly documented in modern literature, with limited species-level information available.
Dolurgus pumilus
Dolurgus pumilus is a species of weevil in the family Curculionidae, first described by Eichhoff in 1868. It belongs to the genus Dolurgus, a group of bark beetles within the weevil superfamily Curculionoidea. The species has been recorded from northwestern North America, specifically British Columbia in Canada and Alaska in the United States. Very little detailed biological or ecological information is available for this species.
Dorytomus
Willow Weevils
Dorytomus is a genus of weevils established by Ernst Friedrich Germar in 1817. Species in this genus are primarily associated with willows and poplars (Salicaceae). The genus contains at least seven species, with distribution records spanning Europe, Asia, and North America. Dorytomus chinensis was recorded from Russia for the first time in 2023.
Dorytomus frostii
Frost's Aspen Weevil
Dorytomus frostii is a true weevil in the family Curculionidae, commonly known as Frost's Aspen Weevil. The species was described in 1916 and occurs in western Canada and potentially broader North American ranges. Like other members of the genus Dorytomus, it is associated with woody plants.
Dorytomus hirtus
Shaggy Weevil
Dorytomus hirtus is a weevil in the family Curculionidae, commonly known as the Shaggy Weevil. The species was described by LeConte in 1876 and is distributed across northern North America, with records from western Canada including Alberta, British Columbia, and Yukon Territory. As a member of the genus Dorytomus, it belongs to a group of weevils associated with woody plants, particularly willows and poplars. The specific epithet "hirtus" refers to the hairy or shaggy appearance characteristic of this species.
Dorytomus marginatus
Dorytomus marginatus is a species of weevil in the family Curculionidae, described by Casey in 1892. It belongs to the genus Dorytomus, a group of weevils primarily associated with willow (Salix) and poplar (Populus) host plants. The species is provisionally accepted in taxonomic databases and is recorded from North America.
Dorytomus sp-two-pnw
Dorytomus sp-two-pnw is an undescribed or provisionally named species of weevil in the tribe Dorytomini, known from the Pacific Northwest region of North America. Members of this genus are generally associated with willow (Salix) and poplar (Populus) hosts. This species has been documented in collections but lacks formal taxonomic description. Its biology and precise distribution remain incompletely known due to its provisional taxonomic status.
Dryophthorinae
Dryophthorinae is a subfamily of weevils (Curculionidae) comprising approximately 1,200 species in 153 genera and ten tribes. The subfamily includes numerous economically significant agricultural pests, particularly of palms, bananas, rice, maize, sugarcane, and bromeliads. Many species are distributed in tropical and subtropical regions worldwide, with several having achieved global distributions through international trade in ornamental and agricultural plants. The taxonomic status of Dryophthorinae remains contested; while traditionally treated as a subfamily, at least one major revision has elevated it to family rank as Dryophthoridae.
Dryophthorus americanus
American Billbug Weevil
Dryophthorus americanus is a small true weevil in the family Dryophthoridae, distributed across North America including Canada and the United States. The species is commonly known as the American Billbug Weevil. It belongs to a genus of weevils associated with woody habitats.
Dryotribus
Dryotribus is a genus of weevils in the family Curculionidae, established by George Henry Horn in 1873. The genus contains four described species: D. amplioculus, D. mimeticus, D. solitarius, and D. wilderi. These beetles belong to the diverse beetle superfamily Curculionoidea, which is characterized by the distinctive elongated snout or rostrum typical of weevils. The genus is relatively poorly documented in scientific literature, with limited published information on its biology and ecology.
Dyslobus
Dyslobus is a genus of broad-nosed weevils (Curculionidae: Entiminae) in the tribe Byrsopagini, established by LeConte in 1869. Species in this genus are native to western North America, particularly California, and are associated with woody vegetation. The genus is part of the diverse Entiminae subfamily, whose larvae typically develop in soil and feed on roots.
Dyslobus lecontei
A species of broad-nosed weevil in the family Curculionidae, described by Casey in 1895. It belongs to the tribe Byrsopagini within the subfamily Entiminae. The species is distributed along the Pacific coast of North America from British Columbia to California.
Dyslobus verrucifer
Dyslobus verrucifer is a species of broad-nosed weevil in the family Curculionidae, subfamily Entiminae. It was described by Casey in 1895. The species is known from the Pacific Northwest region of North America, with records from British Columbia south through Washington, Oregon, Idaho, and Montana. Like other members of the tribe Byrsopagini, it is a flightless weevil with a compact, heavily sclerotized body form.
Eisonyx crassipes
Barely Hairy Baridine
Eisonyx crassipes is a species of flower weevil in the beetle family Curculionidae, described by LeConte in 1880. It is found in North America. The species is part of the genus Eisonyx, which belongs to the diverse weevil family characterized by elongated snouts. As a flower weevil, it is likely associated with flowering plants, though specific ecological details remain poorly documented.
Elassoptes
Elassoptes is a monotypic genus of true weevils (family Curculionidae) containing a single species, Elassoptes marinus. The genus was established by George Henry Horn in 1873. As a member of the largest beetle family, it possesses the characteristic elongated rostrum (snout) typical of weevils. The genus is rarely encountered in collections and field observations, with limited biological data available.
Ellescus
Ellescus is a genus of true weevils in the family Curculionidae, tribe Ellescini. The genus contains approximately 16 described species globally. In North America, four valid species are recognized: the widespread and morphologically variable E. ephippiatus, the Holarctic E. bipunctatus, the west coast endemic E. californicus, and the temperate E. michaeli. Species identification relies on morphological examination and molecular markers, particularly ITS2, which has proven more reliable than CO1 for delineating closely related species.
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 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.
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.
Ernoporini
Ernoporini is a tribe of weevils (Coleoptera: Curculionidae). Members of this tribe are small, wood-boring beetles associated with dead or dying wood. The tribe contains several genera, though it remains relatively poorly studied compared to other curculionid groups.
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 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.
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.
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.
Eugnamptus striatus
Eugnamptus striatus is a species of leaf-rolling weevil in the family Attelabidae, described by John Lawrence LeConte in 1876. The species name "striatus" refers to striated or lined surface sculpturing. Like other members of this family, adults are associated with leaf manipulation behaviors for larval development, though specific details for this species remain poorly documented. The genus Eugnamptus comprises approximately 50 species distributed primarily in the Nearctic and Neotropical regions.
Eugonus bicolor
Eugonus bicolor is a species of fungus weevil in the beetle family Anthribidae, described by Valentine in 1972. The species is known from Central America and North America. As a member of the Anthribidae, it belongs to a family commonly referred to as fungus weevils, though specific ecological details for this species remain limited.
Euhrychiopsis
milfoil weevil
Euhrychiopsis is a genus of small aquatic weevils in the tribe Phytobiini, family Curculionidae. The genus contains at least one well-studied species, Euhrychiopsis lecontei, commonly known as the milfoil weevil. Members of this genus are fully submersed freshwater specialists that feed on watermilfoil plants (Myriophyllum species). The genus has gained attention for its potential use in biological control of invasive aquatic plants.
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.
Euparius pictus
fungus weevil
Euparius pictus is a species of fungus weevil in the beetle family Anthribidae. It was described by Valentine in 1972. The species occurs in Central America and North America, where it inhabits forested environments. As a fungus weevil, it is associated with fungal resources, though specific ecological details remain limited in published literature. The species is represented by few observations in community science databases, suggesting it may be underreported or genuinely uncommon.