Curculionidae
Guides
Magdalis
wedge-shaped bark weevils
Magdalis is a genus of wedge-shaped bark weevils in the family Curculionidae, containing at least 20 described species. Species within this genus are associated with woody host plants, including oaks and elms. At least one species, Magdalis armicollis, has been documented as a pest of red oak, causing twig dieback through larval tunneling. The genus has a broad distribution including North America and Eurasia.
Magdalis aenescens
Magdalis cf-aenescens is a small weevil in the tribe Magdalini, recognized by its metallic bronze or coppery coloration. The genus Magdalis comprises bark- and wood-associated weevils with elongated snouts and compact bodies. This species is part of a taxonomically challenging complex where identification often requires examination of genitalia or host associations. Records indicate association with woody plants, though specific host relationships for this species remain incompletely documented.
Magdalis alutacea
Wedge-shaped bark weevil
Magdalis alutacea is a species of bark weevil in the family Curculionidae, commonly known as the wedge-shaped bark weevil. It occurs across North America including Canada and the United States. The species was described by John Lawrence LeConte in 1878. It belongs to the genus Magdalis, a group of weevils associated with woody plants.
Magdalis armicollis
Red Elm Bark Weevil
Magdalis armicollis is a bark weevil in the family Curculionidae, commonly known as the red elm bark weevil. The species is strongly associated with elm trees (Ulmus), with larvae developing within wood and adults feeding on foliage. It occurs across eastern and central North America. The common name refers to its association with red elm (Ulmus rubra).
Magdalis austera
wedge-shaped bark weevil
Magdalis austera is a species of bark weevil described by Fall in 1913. It belongs to the genus Magdalis, a group of wedge-shaped weevils associated with woody plants. The species is known from North America, with confirmed records from the northeastern United States including Vermont. Two subspecies are recognized: M. a. austera and M. a. substriga.
Magdalis barbicornis
Magdalis barbicornis is a species of wedge-shaped bark weevil in the family Curculionidae. It is a small beetle associated with woody plants. The species was described by Latreille in 1804 and occurs in North America. Like other members of the genus Magdalis, it is likely associated with coniferous or deciduous trees, though specific ecological details remain poorly documented.
Magdalis barbita
Black Elm Bark Weevil
Magdalis barbita is a species of wedge-shaped bark weevil in the family Curculionidae. The common name 'black elm bark weevil' suggests an association with elm trees (Ulmus species). As a member of the genus Magdalis, it belongs to a group of bark weevils that develop in woody plants. The species has been documented in limited observations, with only 12 records on iNaturalist.
Magdalis cuneiformis
wedge-shaped bark weevil
Magdalis cuneiformis is a species of bark weevil in the family Curculionidae. The species was described by George Henry Horn in 1873. It is known from North America, with records from British Columbia, Canada. The specific epithet "cuneiformis" refers to its wedge-shaped appearance.
Magdalis gentilis
wedge-shaped bark weevil
Magdalis gentilis is a species of wedge-shaped bark weevil in the beetle family Curculionidae. It is found in North America, with records from Canada (Alberta, British Columbia, New Brunswick, Nova Scotia) and the United States. The species was described by John Lawrence LeConte in 1876. As a member of the genus Magdalis, it is associated with woody plants, though specific host associations for this species remain poorly documented.
Magdalis gracilis
Magdalis gracilis is a species of weevil in the family Curculionidae, described by John Lawrence LeConte in 1857. The genus Magdalis comprises small to medium-sized weevils commonly associated with woody plants, particularly conifers and hardwoods. This species is recorded from western North America, including British Columbia. Specific ecological details for M. gracilis remain poorly documented in published literature.
Magdalis hispoides
wedge-shaped bark weevil
Magdalis hispoides is a species of bark weevil in the family Curculionidae, described by John Lawrence LeConte in 1876. It belongs to the genus Magdalis, a group of wedge-shaped weevils associated with woody plants. The species is documented from multiple Canadian provinces and is presumed to occur more broadly in North America. Available records are sparse, with limited observational data.
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 lecontei
wedge-shaped bark weevil
Magdalis lecontei is a species of wedge-shaped bark weevil in the family Curculionidae, found in North America. The species was described by George Henry Horn in 1873. Four subspecies are recognized: M. l. decepta, M. l. lecontei, M. l. superba, and M. l. tinctipennis. As a member of the genus Magdalis, it is associated with bark habitats and likely develops in woody plants.
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.
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 hispidus
hispid broad-nosed weevil
Mesagroicus hispidus is a species of broad-nosed weevil in the family Curculionidae. The species was described by Buchanan in 1929. It belongs to the subfamily Entiminae, a group commonly known as broad-nosed or root weevils. The specific epithet 'hispidus' refers to a bristly or hairy surface texture, likely describing the integument of this species.
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.
Micracis
Micracis is a genus of bark beetles in the family Curculionidae, established by LeConte in 1868. The genus contains over 60 described species. Members are small weevils that inhabit woody substrates and are associated with phloem-feeding habits common to bark beetle lineages.
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.
Micracis swainei
Micracis swainei is a bark beetle in the weevil family Curculionidae, described by Blackman in 1920. The species occurs in North America, with records from Canada (Ontario), the United States, the Caribbean, and Middle America. As a member of the subfamily Scolytinae, it is presumed to be associated with woody plants, though specific ecological details remain poorly documented.
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.
Micracisella nanula
Micracisella nanula is a species of weevil in the family Curculionidae, subfamily Corthylinae, described by Wood & Bright in 1992. The genus Micracisella comprises small bark beetles associated with coniferous hosts. This species is recorded from the Caribbean and North America, though specific details of its biology and ecology remain poorly documented in the available literature.
Micracisella opacithorax
Micracisella opacithorax is a bark beetle species in the family Curculionidae, described by Wood & Bright in 1992. It is distributed across North America and Middle America. As a member of the typical bark beetle group, it is associated with woody plants, though specific host relationships remain undocumented in available sources.
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.
Microlarinus
puncturevine seed weevils
Microlarinus is a genus of weevils (Curculionidae) comprising at least two species, M. lareynii and M. lypriformis, specialized on puncturevine (Tribulus terrestris). Both species have been introduced to North America as classical biological control agents. M. lareynii attacks seeds while M. lypriformis feeds on stems. Despite their potential, establishment and impact have been variable due to climatic and biological mismatches with host populations.
Microlarinus lareynii
Puncturevine seed weevil
Microlarinus lareynii is a seed-feeding weevil in the family Curculionidae, native to the Mediterranean region and India. It was introduced to North America in the early 1960s as a biological control agent for puncturevine (Tribulus terrestris), an invasive weed. The species exhibits strong host specificity, with larvae developing exclusively within the seeds of its target host plant. Despite its potential for high reproductive output, field success in controlling weed populations has been variable due to climatic and biological mismatches with the host plant.
Microlarinus lypriformis
Puncture vine stem weevil
Microlarinus lypriformis is a stem-boring weevil (Coleoptera: Curculionidae) introduced to North America as a biological control agent for puncturevine (Tribulus terrestris). Females oviposit into the stems of this host plant, and larvae feed internally on the pith, causing stem damage and plant mortality. Adults emerge through exit holes bored in the stem. The species has been used in combination with the seed-feeding weevil Microlarinus lareynii in biocontrol programs in the United States and Canada.
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.
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.
Minyomerus laticeps
broad-nosed weevil
Minyomerus laticeps is a species of broad-nosed weevil in the family Curculionidae, first described by Casey in 1888. It belongs to the subfamily Entiminae, a group characterized by their broad, short rostrums. The species has been recorded from the southwestern United States and adjacent Mexico.
Minyomerus microps
broad-nosed weevil
Minyomerus microps is a species of broad-nosed weevil in the beetle family Curculionidae. It was first described by Thomas Say in 1831. The species is known from scattered records across North America. As a member of the subfamily Entiminae, it belongs to a group of weevils commonly referred to as broad-nosed or root weevils.
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 setosus
Mitostylus setosus is a species of broad-nosed weevil in the family Curculionidae, first described by Sharp in 1911. It belongs to the tribe Sciaphilini within the subfamily Entiminae. The species has been recorded from multiple locations across southwestern North America, including Arizona, California, and several Mexican states. As a member of this genus, it likely shares the general characteristics of other Mitostylus species, though specific biological details remain poorly documented in the available literature.
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
minute seed weevils
Mogulones is a genus of minute seed weevils in the family Curculionidae, containing at least 30 described species. Several species have been investigated as biocontrol agents for invasive plants, particularly houndstongue (Cynoglossum officinale). The genus is characterized by small body size typical of seed-feeding weevils.