Weevil
Guides
Magdalis imbellis
wedge-shaped bark weevil
Magdalis imbellis is a species of wedge-shaped bark weevil in the family Curculionidae. It was described by John Lawrence LeConte in 1857. The species is found in North America, with confirmed records from the Canadian provinces of Alberta and British Columbia. Very little specific biological information is documented for this species.
Magdalis inconspicua
wedge-shaped bark weevil
Magdalis inconspicua is a species of wedge-shaped bark weevil in the family Curculionidae. It was described by G.H. Horn in 1873. The species is found in North America, with documented occurrences in Canada including New Brunswick, Ontario, and Québec.
Magdalis lecontei superba
Magdalis lecontei superba is a subspecies of weevil in the family Curculionidae. The genus Magdalis comprises bark and ambrosia beetles, with species typically associated with woody plants. The subspecific epithet 'superba' suggests this form may exhibit distinctive morphological features compared to the nominate subspecies. However, specific information regarding this particular subspecies is extremely limited in available literature.
Magdalis olyra
wedge-shaped bark weevil
Magdalis olyra is a species of weevil in the family Curculionidae, commonly referred to as a wedge-shaped bark weevil. The species was described by Herbst in 1797. It belongs to the genus Magdalis, a group of bark-associated weevils. Observations are sparse, with limited documentation of its biology.
Magdalis striata
Magdalis striata is a species of weevil in the family Curculionidae, described by Fall in 1913. The genus Magdalis belongs to the true weevils and contains numerous species associated with woody plants. As a member of this genus, M. striata likely shares the elongated body form typical of Magdalis weevils. The species is recorded from North America.
Mecinini
Mecinini is a tribe of true weevils (Curculionidae: Curculioninae) comprising six genera: Cleopomiarus, Gymnetron, Mecinus, Miarus, Rhinumiarus, and Rhinusa. The tribe is distributed across the Palaearctic, Afrotropical, and Neotropical regions, with most diversity in the Palaearctic. Species are specialized herbivores, primarily associated with Campanulaceae, Scrophulariaceae, and Plantaginaceae. Several species have been introduced to North America as biological control agents for invasive toadflax (Linaria spp.).
Mecinus janthinus
Toadflax stem weevil
Mecinus janthinus is a stem-boring weevil used as a classical biological control agent for invasive toadflax species (Linaria spp.) in North America. Originally introduced from Europe in the 1990s, it has established populations on Dalmatian toadflax (Linaria dalmatica) and yellow toadflax (Linaria vulgaris) in the United States and Canada. The species exhibits high host specificity, with postrelease studies in Colorado finding no evidence of nontarget herbivory on native plants even under no-choice starvation conditions. Genetic studies have revealed that M. janthinus as historically defined comprises two cryptic species: M. janthinus sensu stricto associated with yellow toadflax, and M. janthiniformis associated with Dalmatian toadflax.
Mecinus pascuorum
plantain weevil
Mecinus pascuorum is a true weevil in the family Curculionidae, commonly known as the plantain weevil. Native to the Palaearctic region, it has been introduced to New Zealand where it has become a regular post-harvest contaminant of kiwifruit. The species is associated with narrow leaf plantain (Plantago lanceolata) as its primary host plant. In New Zealand, it completes one generation per year with a brief immature stage and a long-lived adult stage of approximately 11 months.
Mecinus pyraster
Stem Miner Weevil
Mecinus pyraster is a small weevil species in the family Curculionidae, native to the Palaearctic region and introduced to North America. The species has undergone taxonomic revision, with three junior synonyms synonymized under it. As a member of the genus Mecinus, it likely exhibits the stem-mining larval habit characteristic of this group, though specific biological details remain poorly documented in accessible literature.
Melanolemma
Melanolemma is a genus of broad-nosed weevils in the family Curculionidae, established by Van Dyke in 1935. The genus is currently considered a synonym of Peritaxia according to the Catalogue of Life, though it remains listed as accepted in GBIF and NCBI. Only one species, M. montana, has been formally described. The genus belongs to the tribe Byrsopagini within the subfamily Entiminae.
Merhynchites bicolor bicolor
Merhynchites bicolor bicolor is a subspecies of leaf-rolling weevil in the family Attelabidae. Members of the genus Merhynchites are known for their distinctive elongated rostrum and association with oak foliage. The nominate subspecies designation indicates this is the typical form of the species. This taxon belongs to a group of insects commonly referred to as oak leaf-rolling weevils due to their larval habit of manipulating host leaves.
Merhynchites bicolor cerdonis
Merhynchites bicolor cerdonis is a subspecies of leaf-rolling weevil in the family Attelabidae. The genus Merhynchites belongs to the tribe Merhynchitini, a group of rhynchitine weevils characterized by their association with foliage manipulation behaviors. Subspecies in this group often show geographic variation in coloration and body proportions. The specific epithet "cerdonis" indicates this is a named geographic variant of the widespread M. bicolor.
Merhynchites wickhami wickhami
Merhynchites wickhami wickhami is a subspecies of leaf-rolling weevil in the family Attelabidae. The genus Merhynchites contains species associated with woody plants, with adults typically found on host vegetation during the growing season. This subspecies represents the nominate form of M. wickhami. Members of this genus are known for their distinctive elongated rostrum and behavior of rolling or folding leaves to create protective chambers for their eggs and larvae.
Mesagroicus
Mesagroicus is a genus of broad-nosed weevils in the family Curculionidae, established by Schönherr in 1840. The genus contains at least 40 described species and is classified within the subfamily Entiminae and tribe Psallidiini. These weevils belong to the diverse group of entimine weevils, which are characterized by their broad rostrum and typically root-feeding larval habits.
Mesagroicus minor
Mesagroicus minor is a species of broad-nosed weevil (family Curculionidae, subfamily Entiminae) described by Buchanan in 1929. It belongs to the tribe Psallidiini and is native to North America. The genus Mesagroicus contains multiple species of weevils, with M. minor being one of the documented members. Like other entimine weevils, adults possess a broad snout and elbowed antennae.
Mesites
Mesites is a genus of true weevils (Curculionidae) in the tribe Cossonini, established by Schoenherr in 1838. The genus comprises at least 30 described species. These beetles are part of the diverse weevil fauna within the Curculionidae, the largest family of beetles.
Mesites rufipennis
Mesites rufipennis is a species of true weevil (Curculionidae) described by John Lawrence LeConte in 1878. It is a small beetle native to North America. The specific epithet "rufipennis" refers to reddish wing covers. Very little is known about its biology or ecology.
Metamasius hemipterus
Silky Cane Weevil, West Indian Sugarcane Weevil, moleque-da-bananeira, broca-rajada
Metamasius hemipterus is a weevil species in the family Dryophthoridae, commonly known as the silky cane weevil or West Indian sugarcane weevil. It is a significant agricultural pest of sugarcane, banana, coconut, and ornamental palms. The species has been introduced to multiple regions beyond its native range and is now established across the Americas, Africa, and Oceania. Larvae bore into plant stalks and stems, causing direct and indirect damage that reduces crop productivity. The species is known to use aggregation pheromones and is associated with the endosymbiont "Candidatus Nardonella dryophthoridicola".
Metamasius hemipterus sericeus
silky cane weevil, West Indian sugarcane weevil
Metamasius hemipterus sericeus, commonly known as the silky cane weevil or West Indian sugarcane weevil, is a subspecies of weevil in the family Curculionidae. It is a significant agricultural pest of sugarcane and ornamental palms, particularly in tropical and subtropical regions. The species is notable for its male-produced aggregation pheromones, which attract both sexes and are synergized by host plant volatiles. Management is challenging due to the cryptic habitat of boring larvae and high reproductive potential.
Metamasius mosieri
Florida bromeliad weevil
Metamasius mosieri is a small weevil in the family Dryophthoridae, commonly known as the Florida bromeliad weevil. It feeds on bromeliads but occurs at very low population densities in natural habitats and is considered only an occasional, minor pest on ornamental species. It is native to Florida and Cuba and is frequently confused with the more destructive Mexican bromeliad weevil (Metamasius callizona).
Micracis lignator
Micracis lignator is a species of weevil in the family Curculionidae, described by Blackman in 1928. The genus Micracis belongs to a group of bark beetles, though specific ecological details for this species remain poorly documented. It occurs in Middle and North America. Like other members of its genus, it is likely associated with woody plants, though direct observations are limited.
Micracisella
Micracisella is a genus of bark beetles in the family Curculionidae, established by M.W. Blackman in 1928. The genus contains at least 20 described species. Like other bark beetles, members of this genus are likely associated with woody plants, though specific ecological details remain poorly documented. The genus is part of the diverse weevil family and shares the characteristic rostrum of Curculionidae.
Micralcinus maculatus
Micralcinus maculatus is a species of true weevil in the family Curculionidae, first described by Sleeper in 1955. It is known from North America. The specific epithet 'maculatus' refers to spotted or mottled coloration, though detailed descriptions of its appearance are not available in the provided sources.
Micralcinus parvulus
Micralcinus parvulus is a species of weevil in the family Curculionidae. It is a poorly documented taxon with minimal published research available. The genus Micralcinus is distinct from the more commonly studied billbug genus Sphenophorus, though both belong to the same family. Available information on this species is extremely limited, with only three observations recorded on iNaturalist and no Wikipedia entry.
Microbaris
Microbaris is a genus of flower weevils in the family Curculionidae, established by Thomas Lincoln Casey in 1892. The genus is monotypic, containing a single described species, Microbaris galvestonica. As a member of Curculionidae, it possesses the characteristic elongated snout (rostrum) typical of weevils. The genus is placed within the large superfamily Curculionoidea, which comprises the most diverse group of beetles.
Microcholus striatus
flower weevil
Microcholus striatus is a species of flower weevil in the beetle family Curculionidae, described by John Lawrence LeConte in 1876. It is native to North America. As a member of the flower weevil group, it likely associates with flowers or developing plant parts, though specific ecological details remain poorly documented.
Microhyus
Microhyus is a genus of true weevils (Curculionidae) established by LeConte in 1876. The genus contains at least one described species, M. setiger. As a curculionid weevil, it possesses the characteristic elongated rostrum typical of the family. The genus is poorly documented in the literature, with limited information available on its biology and ecology.
Microhyus setiger
Microhyus setiger is a species of weevil in the family Curculionidae, first described by LeConte in 1876. This small beetle belongs to a genus of weevils whose biology and ecology remain poorly documented in scientific literature. Distribution records indicate presence in eastern North America, specifically in the Canadian provinces of Ontario and Québec.
Micromastus
Micromastus is a genus of true weevils in the family Curculionidae, established by John Lawrence LeConte in 1876. The genus contains a single described species, M. gracilis. Little is known about its biology or ecology due to its rarity and limited documentation. The genus is recognized as valid and accepted in major taxonomic databases.
Micromyrmex
Micromyrmex is a genus of weevils in the family Curculionidae, established by E.L. Sleeper in 1953. The genus is poorly documented in scientific literature, with minimal published information on its biology and ecology. Only four observations are recorded on iNaturalist, indicating it is rarely encountered or underreported. It belongs to the superfamily Curculionoidea, the largest group of beetles, characterized by their distinctive elongated snouts.
Microon
Microon is a genus of weevils in the family Brentidae, established by Alonso-Zarazaga in 1989. These beetles belong to the straight-snouted weevil lineage within Coleoptera. The genus has been documented from limited observations in northern Europe.
Microon canadense
Microon canadense is a species of weevil in the family Brentidae, described by Brown in 1944. As a member of the genus Microon, it belongs to a group of small brentid weevils. The species epithet "canadense" indicates a Canadian type locality or distribution. Information regarding its biology, ecology, and specific identification features remains poorly documented in available sources.
Microplontus campestris
Microplontus campestris is a species of weevil in the family Curculionidae, originally described by Gyllenhal in 1837 under the name Ceuthorhynchus campestris. The genus Microplontus comprises small weevils, and this species has been recorded from parts of Europe (Belgium) and North America (Ontario, Canada). As with many weevils, detailed natural history information for this species remains sparse in published literature.
Microplontus edentulus
Microplontus edentulus is a species of weevil in the family Curculionidae. The species was originally described by Schultze in 1896 under the genus Ceuthorrhynchus, and later transferred to Microplontus. It is currently recognized as a synonym of Ceuthorrhynchus edentulus in some taxonomic treatments. Very few observations of this species exist in public databases.
Miloderes nelsoni
Nelson's Miloderes Weevil
Miloderes nelsoni is a species of broad-nosed weevil in the family Curculionidae, subfamily Entiminae. The species was described by David G. Kissinger in 1960. It belongs to the tribe Byrsopagini, a group of flightless weevils characterized by their fused elytra and reduced hind wings. The specific epithet honors an individual named Nelson, though the exact honoree has not been documented in available sources. Records indicate presence in California, specifically Inyo County.
Mimosestes ulkei
retama weevil
Mimosestes ulkei, commonly known as the retama weevil, is a seed beetle in the family Chrysomelidae (subfamily Bruchinae). The species was originally described by Horn in 1873 as Bruchus ulkei and later transferred to the genus Mimosestes. It is distributed across Central America and North America. Like other members of the Bruchinae, this species is associated with leguminous host plants.
Minyomerus griseus
Minyomerus griseus is a species of weevil in the family Curculionidae, subfamily Entiminae, described by Sleeper in 1960. It belongs to the tribe Tanymecini, a group of broad-nosed weevils. The species epithet "griseus" refers to its gray coloration. Distribution records indicate presence in Presidio, though detailed biological information remains limited.
Mitostylus elongatus
broad-nosed weevil
Mitostylus elongatus is a species of broad-nosed weevil in the beetle family Curculionidae. The species was described by Van Dyke in 1936. It is known from North America, with confirmed records from Texas.
Mitostylus tenuis
broomweed broad-nosed weevil
Mitostylus tenuis is a broad-nosed weevil in the family Curculionidae, described by Horn in 1876. The common name 'broomweed broad-nosed weevil' suggests an association with broomweed (Gutierrezia spp.), a genus of composite plants. The species is known from North America, with records from Oklahoma and Texas.
Mogulones crucifer
Molytinae
Molytinae is a large and diverse subfamily of weevils (Curculionidae) described by Carl Johan Schönherr in 1823. The subfamily contains numerous tribes and genera distributed worldwide, with particularly high diversity in tropical and subtropical regions. Many Molytinae species are associated with specific host plants, including conifers, oaks, and various flowering plants. Some species are economically important as pests of forestry and agricultural crops, while others are restricted to specialized habitats such as leaf litter, caves, or high-elevation ecosystems. The subfamily has undergone significant taxonomic revision in recent decades, with many new species described particularly from Central America, Africa, and Asia.
Monarthrum huachucae
A small weevil species in the family Curculionidae, described by Wood in 1959. The specific epithet 'huachucae' refers to the Huachuca Mountains of southeastern Arizona, suggesting a geographic association with this Sky Island region. Like other members of the genus Monarthrum, this species is likely associated with woody vegetation, though specific ecological details remain poorly documented.
Myctides
Myctides is a genus of weevils (family Curculionidae) established by Francis Polkinghorne Pascoe in 1874. The genus is part of the hyperdiverse Curculionidae, the largest family of beetles. Based on iNaturalist records, at least 49 observations of this genus have been documented, though specific ecological and biological details remain limited in publicly available sources.
Myoplatypus flavicornis
Myoplatypus flavicornis is a species of weevil in the family Curculionidae, first described by Fabricius in 1777. The species was originally placed in the genus Bostrichus and has also been referred to under the genus Brachyelatus. It belongs to the large and diverse group of true weevils characterized by their elongated snouts.
Myosides
Myosides is a genus of weevils in the family Curculionidae, subfamily Entiminae. The genus was established by Roelofs in 1873 and is native to Asia. At least one species, Myosides seriehispidus, is known to have established populations in North America since 2000.
Myrmex arizonicus
Arizona antlike weevil
Myrmex arizonicus is a species of antlike weevil in the beetle family Curculionidae, native to North America. The genus Myrmex is characterized by weevils that exhibit ant-mimicry in their morphology and behavior. This species was first described by Schaeffer in 1907. As with other members of the genus, it likely occupies habitats where ant mimicry provides selective advantage, though specific ecological details remain poorly documented.
Myrmex basalis
antlike weevil
Myrmex basalis is a species of antlike weevil in the family Curculionidae. The species was described by Schaeffer in 1907 and is currently classified under the genus Myrmex, though it was previously placed in Otidocephalus. Very little is known about its biology or distribution beyond basic taxonomic records.
Myrmex carinicollis
antlike weevil
Myrmex carinicollis is a species of antlike weevil in the beetle family Curculionidae, described by Horn in 1895. The genus Myrmex comprises ant-mimicking weevils characterized by their compact body form and reduced rostrum that gives them a superficial resemblance to ants. This species is found in North America, though specific details about its biology and ecology remain poorly documented in the available literature.
Myrmex chevrolatii
Chevrolat's Myrmex Weevil
Myrmex chevrolatii is a species of antlike weevil in the beetle family Curculionidae. The species is characterized by its ant-mimicking appearance, a trait common to members of the genus Myrmex. It is found in North America. The genus name Myrmex derives from the Greek word for ant, reflecting this morphological resemblance.
Myrmex dichrous
Bicolored Myrmex
Myrmex dichrous is a species of antlike weevil in the beetle family Curculionidae. The species was described by LeConte in 1876. It is commonly known as the Bicolored Myrmex. The genus name Myrmex derives from Greek, meaning 'ant', referencing the ant-mimicking appearance of these weevils.