Weevil
Guides
Myrmex egregius
Myrmex egregius is a species of antlike weevil in the beetle family Curculionidae. It was described by Casey in 1892. The species is found in North America. Very little specific information is documented about its biology or ecology.
Myrmex floridanus
antlike weevil, Florida antlike weevil
Myrmex floridanus is a species of antlike weevil in the family Curculionidae, characterized by morphological adaptations that mimic ants. The species was described by Casey in 1892 and is currently treated as a synonym of Otidocephalus floridanus in some taxonomic databases. It occurs in North America, with records primarily from the southeastern United States. The genus Myrmex belongs to the tribe Myrmecini, a group of weevils known for their ant-mimicking appearance.
Myrmex horni
antlike weevil
Myrmex horni is a species of antlike weevil in the beetle family Curculionidae, described by Sleeper in 1954. The genus Myrmex comprises weevils that exhibit ant-mimicking morphology, a form of protective resemblance that helps them avoid predation. The species is known from North America, though specific details about its biology and ecology remain poorly documented.
Myrmex insignis
antlike weevil
Myrmex insignis is a species of ant-mimicking weevil in the family Curculionidae. The species exhibits morphological adaptations resembling ants, a form of protective mimicry common in the genus. It is recorded from North America, though specific details regarding its biology and ecology remain limited in published literature.
Myrmex laevicollis
antlike weevil
Myrmex laevicollis is a species of antlike weevil in the family Curculionidae. The genus Myrmex is characterized by ant-mimicking morphology and behavior. This species occurs in North America.
Myrmex lineatus
Antlike weevil
Myrmex lineatus is a species of ant-mimicking weevil in the family Curculionidae. It is native to North America and is recognized for its ant-like appearance, which likely serves as protective mimicry. The species was described by Pascoe in 1872 and includes two recognized subspecies: Myrmex lineatus knowltoni and Myrmex lineatus lineatus.
Myrmex ruficornis
antlike weevil
Myrmex ruficornis is a species of antlike weevil in the beetle family Curculionidae. The genus Myrmex is characterized by its ant-mimicking morphology, with species exhibiting body forms and behaviors that resemble ants. The specific epithet ruficornis refers to the reddish coloration of the antennae. This species was described by Casey in 1892 and is currently treated as a synonym of Otidocephalus ruficornis in some taxonomic databases.
Myrmex scrobicollis
antlike weevil
Myrmex scrobicollis is a species of antlike weevil in the beetle family Curculionidae. The genus Myrmex comprises weevils with elongated, ant-mimicking body forms. This species occurs in North America. The common name "antlike weevil" refers to morphological resemblance to ants, though the specific adaptive significance of this mimicry in M. scrobicollis has not been documented.
Myrmex subglaber
antlike weevil
Myrmex subglaber is a species of ant-mimicking weevil in the family Curculionidae. The species was originally described by Schaeffer in 1907 under the genus Otidocephalus, and is currently classified under Myrmex. Like other members of this genus, it exhibits morphological adaptations resembling ants, a form of protective mimicry common in this weevil lineage. The species is native to North America.
Myrmex texanus
antlike weevil
Myrmex texanus is a species of antlike weevil in the beetle family Curculionidae. It is native to North America. The species is characterized by its ant-mimicking appearance, a common trait in the genus Myrmex. Very little specific information is available about its biology or ecology.
Myrmex ulkei
Myrmex ulkei is a species of antlike weevil in the beetle family Curculionidae, characterized by its myrmecophilous (ant-associated) morphology. The species was described by Horn in 1873 and is known from North America. Members of the genus Myrmex exhibit extreme morphological convergence with ants, an adaptation that likely facilitates their association with ant colonies.
Myrmex undescribed-one
Myrmex undescribed-one is an uncharacterized species within the ant-loving weevil genus Myrmex (Curculionidae: Myrmecophilinae). Species in this genus are obligate myrmecophiles, meaning they live in association with ant colonies. The specific identity and biological details of this undescribed taxon remain undocumented in the available literature.
Myrmex vandykei
Myrmex vandykei is a species of antlike weevil in the family Curculionidae, described by Sleeper in 1970. The species is found in North America. Like other members of the genus Myrmex, it exhibits morphological adaptations that give it a superficial resemblance to ants, a form of protective mimicry. The specific epithet honors the entomologist Edwin C. Van Dyke.
Nanophyes
Nanophyes is a genus of small weevils in the family Brentidae, distributed across Europe, Japan, Southern Africa, and parts of Asia. Species are associated with specific host plants, with larvae typically developing inside fruits and adults feeding on leaves, pollen, and nectar. Some species have been studied as potential biological control agents for aquatic weeds, while others are fruit predators of forest trees.
Nanophyes brevis
Nanophyes brevis is a species of straight-snouted weevil in the family Brentidae, subfamily Nanophyinae. The species was described by Boheman in 1845. Like other members of the genus Nanophyes, it is a small weevil associated with aquatic or semi-aquatic plants. The genus is known for species that develop in seeds or stems of plants, particularly in the family Lythraceae.
Nanophyes marmoratus
Flower Bud Weevil
Nanophyes marmoratus is a small weevil in the family Brentidae, commonly known as the Flower Bud Weevil. It is native to Europe and has been introduced to North America. The species is associated with flower buds of its host plants, though specific host relationships require further documentation. It is one of approximately 180 species in the genus Nanophyes, a group of minute weevils typically under 5 mm in length.
Nanophyinae
Nanophyinae is a subfamily of weevils in the family Brentidae, comprising two tribes (Corimaliini and Nanophyini) and including the genus Zhangius. The group was originally established as a family in 1848 but later reclassified. Members exhibit considerable morphological diversity, with some genera showing canopy-dwelling habits and associations with specific host plants in Lythraceae.
Nanops
Nanops is a genus of weevils in the family Curculionidae, established by W.G. Dietz in 1891. It belongs to the superfamily Curculionoidea within the suborder Polyphaga. The genus is poorly documented in public sources, with minimal information available regarding its constituent species, ecology, or morphology.
Nanops schwarzi
Nanops schwarzi is a species of minute weevil in the family Curculionidae, first described by Dietz in 1891. It is provisionally accepted in taxonomic databases and has been recorded from North America. The genus Nanops comprises exceptionally small weevils, with adults often measuring less than 2 mm in length. Very little is known about the specific biology or ecology of this species.
Narberdia
Narberdia is a genus of true weevils in the family Curculionidae, tribe Anthonomini. The genus was monotypic when described by Burke in 1976 from the United States, but expanded to at least five species following descriptions of four additional species from México and Costa Rica in 2017. All species are intimately associated with plants of the genus Bernardia (Euphorbiaceae). Sexual dimorphism is pronounced, with females possessing a longer, more slender rostrum and a distinctive tibial tooth absent in males.
Narberdia aridulus
Narberdia aridulus is a species of true weevil in the beetle family Curculionidae, described by Burke in 1976. It belongs to a genus within the diverse weevil family, which is one of the largest families of beetles. The species is known to occur in North America. Available information on this species is limited, with only one observation recorded on iNaturalist.
Naupactini
broad-nosed weevils
Naupactini is a diverse tribe of broad-nosed weevils (subfamily Entiminae) with highest genus and species diversity in South America. Members range from 3.5 to 35 mm and exhibit diverse coloration including iridescent scales. The tribe is notable for frequent flightlessness and parthenogenesis in habitats with sparse vegetation, with parthenogenesis linked to Wolbachia bacterial infection. Several species are agricultural pests, particularly on Fabaceae.
Naupactus
White-fringed Weevils
Naupactus is a large genus of weevils in the family Curculionidae, commonly known as white-fringed weevils. The genus comprises exclusively Neotropical species, several of which have been introduced to other regions and become significant agricultural pests. Members of this genus are characterized by reduced humeri and lack of metathoracic wings, traits formerly used to separate them into the genus Graphognathus before taxonomic revision. Some species exhibit parthenogenetic reproduction, and flightless adults are common.
Naupactus pallidulus
Naupactus pallidulus is a species of broad-nosed weevil in the family Curculionidae. It belongs to a large genus of exclusively Neotropical weevils commonly known as "white-fringed weevils." The genus Naupactus has undergone taxonomic revision, with former genera such as Graphognathus now synonymized under it. Many Naupactus species have become economically significant as agricultural pests, with several introduced to North America and other regions.
Naupactus pallidus
Naupactus pallidus is a species of broad-nosed weevil in the family Curculionidae, subfamily Entiminae. It belongs to the diverse Neotropical genus Naupactus, commonly known as white-fringed weevils. Species in this genus are characterized by their elongated bodies, distinct rostrums, and often pale or whitish markings on the elytra. Many Naupactus species have become agricultural pests, with some introduced to North America.
Naupactus peregrinus
Naupactus peregrinus is a species of broad-nosed weevil in the family Curculionidae, subfamily Entiminae. It belongs to the large Neotropical genus Naupactus, commonly known as "white-fringed weevils." The species has been recorded from the southeastern United States (Alabama, Arkansas, Florida) and parts of South America (Chaco, Entre Ríos in Argentina). Like other members of its genus, it is likely associated with vegetation and may have been introduced to some regions, though specific ecological details remain poorly documented.
Neapion frosti
Neapion frosti is a species of straight-snouted weevil in the family Brentidae, originally described as Apion frosti by Kissinger in 1968 and later transferred to the genus Neapion. It is a small beetle known from eastern Canada, with records from New Brunswick, Nova Scotia, Ontario, and Quebec. The genus Neapion contains species associated with various host plants, though specific ecological details for N. frosti remain poorly documented.
Nedyus apicalis
Pointed Minute Seed Weevil
Nedyus apicalis is a small weevil in the family Curculionidae, commonly known as the Pointed Minute Seed Weevil. The species was described by O'Brien and Wibmer in 1982. It belongs to the genus Nedyus, which comprises minute seed-feeding weevils. The species has been documented across several Canadian provinces.
Nemocestes horni
Nemocestes horni is a species of broad-nosed weevil (family Curculionidae, subfamily Entiminae) described by Van Dyke in 1936. It belongs to the tribe Peritelini, a group of weevils characterized by their broad, short rostrums. The species is known from scattered localities across North America, including the Pacific Northwest, Great Lakes region, and northeastern United States.
Neobagous
Neobagous is a genus of weevils in the family Brachyceridae, established by Hustache in 1926. These beetles belong to the superfamily Curculionoidea and share the characteristic elongated snout (rostrum) typical of weevils. The genus is currently accepted in modern taxonomic databases, though detailed biological information remains limited in published literature.
Neobagous texanus
Neobagous texanus is a species of weevil in the family Curculionidae, subfamily Bagoinae. The genus Neobagous belongs to a group of aquatic or semi-aquatic weevils commonly associated with wetland habitats. This species is named for Texas, indicating its described type locality or primary distribution center. Members of this genus are typically small, elongate weevils with adaptations for life in moist environments.
Neochetina bruchi
chevroned water hyacinth weevil, chevroned waterhyacinth weevil
Neochetina bruchi is a South American marsh weevil introduced to over 30 countries as a biological control agent for invasive water hyacinth (Pontederia crassipes, formerly Eichhornia crassipes). First released in the United States in Florida in 1974, it now occurs throughout the Gulf Coast states and California. The species has been studied extensively for its effectiveness in managing water hyacinth infestations, with research showing its performance varies with environmental factors including salinity, temperature, and nutrient availability.
Neoerethistes
Neoerethistes is a genus of true weevils in the family Curculionidae containing more than 30 described species. The genus was renamed from Erethistes in 1982 to avoid homonymy with a genus of South Asian river catfishes. The sole North American representative north of Mexico is N. arizonicus, which occurs in the southwestern United States.
Neoerethistes arizonicus
Neoerethistes arizonicus is a species of weevil in the family Curculionidae, described by Sleeper in 1954. The specific epithet "arizonicus" indicates its association with Arizona. Very little published information exists regarding this species beyond its original description and taxonomic placement. The genus Neoerethistes is poorly documented in the literature, with most species known only from type specimens and scattered collection records.
Neomastix
Neomastix is a genus of true weevils (Curculionidae) established by W.G. Dietz in 1891. It is native to the Nearctic realm. The type species, N. solidaginis, is the only described species currently recognized in the genus. The genus is rarely encountered, with minimal observational records.
Neomastix solidaginis
Neomastix solidaginis is a weevil species in the family Curculionidae, described by Dietz in 1891. The specific epithet "solidaginis" indicates an association with goldenrod plants (Solidago). The genus Neomastix belongs to the weevil superfamily Curculionoidea. Very little published information exists on the biology or ecology of this particular species.
Neoptochus
oriental broad-nosed weevils
Neoptochus is a genus of weevils in the family Curculionidae, established by Horn in 1876. The genus belongs to the subfamily Entiminae (broad-nosed weevils) and tribe Cyphicerini. Only one described species is currently recognized: N. adspersus. These weevils are distributed in the Oriental region.
Nicentrus lecontei
Leconte's flower weevil
Nicentrus lecontei is a species of flower weevil in the beetle family Curculionidae, described by Casey in 1920. The genus Nicentrus belongs to the weevil family, a large group of beetles characterized by their distinctive elongated snouts. This species is known from North America, though specific details about its biology remain limited in published literature.
Notaris
marsh weevils
Notaris is a genus of marsh weevils in the family Brachyceridae. The genus contains at least 40 described species. These beetles are associated with wetland habitats.
Notaris puncticollis
Pale-spotted gray weevil
Notaris puncticollis is a marsh weevil species described by LeConte in 1876. It belongs to the family Erirhinidae (sometimes historically placed in Brachyceridae or Curculionidae in various classifications). The species has a boreal transcontinental distribution and is primarily associated with wetland habitats. It is one of approximately 10 observed species in the genus Notaris.
Notiodes cribricollis
Notiodes cribricollis is a species of marsh weevil in the family Brachyceridae. The species was described by LeConte in 1876 and is currently recognized as a synonym of Endalus cribricollis. It belongs to a group of weevils associated with wetland and marsh habitats. The genus Notiodes is part of the brachycerid weevils, a family distinguished by their elongated snouts and compact body forms.
Notiodes depressus
marsh weevil
Notiodes depressus is a species of marsh weevil in the beetle family Brachyceridae. The species was originally described by Burke in 1961 and has been recorded as a synonym under Endalus depressus in some taxonomic databases. As a member of the marsh weevil group, it is associated with wetland or moist habitat environments. The species has been documented through a limited number of observations (3 records in iNaturalist), suggesting it may be uncommon or under-recorded.
Notiodes laticollis
Notiodes laticollis is a species of weevil in the family Erirhinidae, originally described by Blatchley in 1916. The species has undergone taxonomic revision, with GBIF currently listing it as a synonym under the genus Endalus as Endalus laticollis, while NCBI retains it in Notiodes. Erirhinidae weevils are typically associated with aquatic or semi-aquatic habitats, often feeding on aquatic plants.
Notiodes limatulus
marsh weevil
Notiodes limatulus is a species of marsh weevil in the beetle family Brachyceridae, described by O'Brien & Wibmer in 1982. It is known from multiple Canadian provinces and is part of a genus associated with wetland habitats. The species has been documented through 19 iNaturalist observations and is accepted in major taxonomic databases.
Notiodes ovalis
marsh weevil
Notiodes ovalis is a species of marsh weevil in the beetle family Brachyceridae. The species was originally described by LeConte in 1876 and has been placed in the genus Endalus in some taxonomic treatments. As a member of Brachyceridae, it belongs to a family of weevils commonly associated with marsh and wetland habitats.
Notiodes punctatus
Punctate Water Weevil
Notiodes punctatus is a species of marsh weevil in the family Erirhinidae, though it has historically been treated as a member of Brachyceridae. The species was described by LeConte in 1876 and is found in North America. Its common name, Punctate Water Weevil, references the punctate (spotted or pitted) surface texture characteristic of the species.
Notiodes robustus
Notiodes robustus is a species of weevil in the family Curculionidae, originally described by Schaeffer in 1908. The species has undergone taxonomic revision, with some sources listing it under the synonym Endalus robustus in the family Brachyceridae, though current consensus places it in Curculionidae. As a member of the genus Notiodes, it belongs to a group of small weevils. Published information on its biology and ecology remains sparse.
Notiodes setosus
marsh weevil
Notiodes setosus is a species of marsh weevil in the beetle family Brachyceridae. It was originally described by LeConte in 1876. The species is currently placed in the genus Notiodes, though some sources list it as a synonym under the genus Endalus as Endalus setosus.
Notolomus basalis
Notolomus basalis is a species of true weevil in the beetle family Curculionidae, first described by LeConte in 1876. It is found in North America. As a member of the weevil family, it possesses the characteristic elongated snout (rostrum) typical of Curculionidae. Specific ecological details about this species remain poorly documented in the available literature.
Nyssonotus seriatus
Nyssonotus seriatus is a species of true weevil in the beetle family Curculionidae. It was described by Thomas L. Casey in 1892. The species is known from North America. Very little detailed biological information has been published for this species.