Brentidae

Guides

Apion
Apion is a genus of small weevils in the family Brentidae, historically classified in Apionidae. The genus was established by Johann Friedrich Wilhelm Herbst in 1797. Species in this genus are associated with various host plants, with some exhibiting narrow host specificity. The genus has been involved in notable nomenclatural complications, particularly regarding the name Eurhinus which was originally applied to a different apionine genus by Kirby in 1819 before being transferred to the baridine genus Eurhin.
beetle weevil Brentidae Apioninae Coleoptera insect Herbst-1797
Apioninae
Pear-shaped Weevils, Seed Weevils, Clover Weevils
Apioninae is a subfamily of small weevils within the family Brentidae, commonly known as pear-shaped weevils, seed weevils, or clover weevils. The subfamily contains at least 20 genera and approximately 80 described species, though diversity is likely higher. Members are characterized by their compact, pear-shaped body form and elongated rostrum. All species are phytophagous, with many exhibiting specialized associations with particular host plant families, particularly Fabaceae, Asteraceae, Malvaceae, and Polygonaceae. Some species are significant agricultural pests of legumes and jute, while others have been employed as biological control agents for invasive plants.
weevil seed-predator flower-bud-feeder agricultural-pest biological-control Fabaceae-associate phytophagous Brentidae Coleoptera
Apionini
Apionini is a tribe of small weevils within the subfamily Apioninae of the family Brentidae. Members are characterized by their compact body form and association with flowering plants, particularly in the legume family Fabaceae. The tribe exhibits ancient co-diversification patterns with angiosperms, with some subtribes such as Oxystomatina showing specialized host relationships. Brazilian representatives include genera such as Pygidiapion and Coelocephalapion, which develop in flower buds, seeds, or induce leaf galls on specific host plants.
weevil Brentidae Fabaceae gall-inducer seed-predator Brazil Neotropical
Brentinae
straight-snouted weevils, primitive weevils
Brentinae is a subfamily of primitive weevils in the family Brentidae, commonly called straight-snouted weevils. Members are distinguished from true weevils (Curculionidae) by their straight, elongated rostrum rather than a geniculate (elbowed) snout. The subfamily contains at least 90 genera and 520 described species, with extreme sexual dimorphism in rostrum and mandible structure observed in some species. The type genus Brentus was used by Gustaf Johan Billberg to establish both the subfamily and family in 1820.
Coleoptera Brentidae weevils primitive-weevils wood-borers sexual-dimorphism
Coelocephalapion antennatum
Coelocephalapion antennatum is a species of straight-snouted weevil in the family Brentidae. Species in this genus are small to minute beetles associated with plant material. The specific epithet "antennatum" refers to notable antennae characteristics. Like other members of Apioninae, this species likely has a narrow, elongated rostrum. Detailed biological studies of this particular species appear limited in published literature.
weevil brentidae apioninae straight-snouted-weevil seed-weevil
Coelocephalapion eriogoni
Coelocephalapion eriogoni is a species of straight-snouted weevil in the family Brentidae, subfamily Apioninae. The genus Coelocephalapion comprises small weevils associated with specific host plants, and this species is known from associations with Eriogonum (wild buckwheat) species. Like other apionine weevils, it likely exhibits a narrow host range tied to its larval development within plant tissues.
weevil Brentidae Apioninae seed-predator Eriogonum western-North-America
Coelocephalapion persimile
Coelocephalapion persimile is a species of straight-snouted weevil in the family Brentidae, subfamily Apioninae. Members of this genus are characterized by their compact body form and elongated rostrum. The species epithet "persimile" suggests close resemblance to another taxon. Like other brentids, it likely develops in plant tissues, though specific host associations remain undocumented.
Brentidae Apioninae weevil Neotropical data-deficient
Coelocephalapion spretissimum
Coelocephalapion spretissimum is a species of straight-snouted weevil in the family Brentidae. The genus Coelocephalapion comprises small weevils characterized by their elongated rostrum. This species belongs to a group of brentids that are poorly documented in the scientific literature.
Coleoptera Brentidae Coelocephalapion weevil straight-snouted-weevil insect beetle
Coelocephalapion subornatum
Coelocephalapion subornatum is a species of straight-snouted weevil in the family Brentidae. It belongs to a genus characterized by elongated, slender body forms and notably elongated rostrums. The species is documented from a limited number of observations, suggesting it may be uncommon or underreported. As with other members of Brentidae, it likely exhibits the family-typical elongated snout used for feeding and oviposition.
Coleoptera Brentidae weevil straight-snouted-weevil Apioninae
Coelocephalapion ventricosum
Coelocephalapion ventricosum is a species of straight-snouted weevil in the family Brentidae. As a member of this family, it possesses the characteristic elongated snout (rostrum) typical of brentid weevils. The genus Coelocephalapion is part of the diverse apionine radiation within Brentidae. Very little specific information about this particular species is available in published sources.
weevil straight-snouted-weevil Coleoptera Brentidae Coelocephalapion
Cyladini
Cyladini is a tribe of weevils in the family Brentidae, subfamily Apioninae. The tribe includes economically significant pests of sweet potato, particularly the sweetpotato weevil (Cylas formicarius), which causes substantial damage to storage roots in tropical and subtropical production regions. Members of this tribe are characterized by their association with Convolvulaceae host plants and their status as specialized root-feeding pests.
pest agriculture sweet-potato Convolvulaceae integrated-pest-management Cylas-formicarius tropical-agriculture subtropical-agriculture root-feeding-weevil storage-root-damage economic-pest biological-control crop-protection southeastern-United-States global-food-security low-input-farming drought-tolerant-crop nematode-interactions Beauveria-bassiana entomopathogenic-nematodes resistant-varieties crop-rotation cover-crops IPM Brentidae Apioninae Coleoptera Insecta Hexapoda Arthropoda Animalia Claire-Schloemer Auburn-University University-of-Wisconsin-Madison Journal-of-Integrated-Pest-Management Scott-Graham Kathy-Lawrence Covington Bonita Beauregard Orleans guava-root-knot-nematode root-knot-nematode wireworm cucumber-beetle flea-beetle Purpureocillium-lilacinum biopesticide green-bridge-effect mustard glucosinolate peanut bahiagrass sandy-soil drought-adaptation biofuel animal-feed nutritional-value food-security sustainable-agriculture environmental-impact microbial-control fungal-pathogen entomopathogenic-fungus biological-nematicide nematode-egg-parasitism pest-management agricultural-entomology crop-loss yield-reduction root-quality marketability integrated-management cultural-control selective-chemical-use productivity natural-processes versatility global-cultivation tropical-regions subtropical-regions southeastern-U.S.domestic-production revenue acreage harvest farming grower breeding research cultivar-development evolving-threats pest-pressure soil-health field-preparation winter-habitat insect-habitat parasitism infestation damage loss challenge defense arsenal battle war resilience adaptation innovation strategy sustainability livelihood nourishment food-production agricultural-research entomology plant-protection crop-science horticulture root-crop tuber storage-organ feeding-injury galling cracked-roots stunted-growth water-uptake nutrient-uptake pathogen-interaction exacerbated-damage variety-selection hardy-variety robust-performance high-yield nematode-resistance pest-resistance vulnerability spreading-pest population-reduction soil-improvement spring-planting toxic-compound natural-property microbial-product formulation application evaluation maximization potential urgency growing-threat comprehensive-strategy balance enablement essential-crop security defiance difficult-conditions menacing-pests formidable-threats production-continuation face-to-face threat disease resilient-crop growing-conditions menace story surface beneath relentless adversary favor condition powerful foe tiny parasite attack formation diminish ability result unattractive worse matter interaction significant devastating ruin inflict further compromise grapple thankfully farmer begin select hardy withstand traditional gain traction vulnerable highlight need continue breed effort develop capable oppose evolve after sturdy cultural management rotation cover cropping line take year off grow rotate non-host prove effective reduce population breathe life improve health suppress prepare example contain compound call break down release substance wary provide represent method harness help win spore fungus infect kill type tap different microscopic animal parasitize plus use combat attention egg aid fight minimize impact despite advance question remain require maximize particularly urgent pose key enhance approach integrate practice control selective chemical enable natural process nutritional value essential crop global food region support million address pressure innovative sustainable ensure live many formidable production although come face resilient able defy difficult read more journal integrated Claire Schloemer Ph.D.student conduct earn master degree email share link friend open new window print Facebook LinkedIn Bluesky Mastodon X Reddit Threads related discover from today subscribe get latest post send your Cylas formicarius sweet potato sweetpotato weevil photo courtesy show here cucumber beetle root-knot nematode harm U.S.guide detail variety option beloved delicious taste benefit bright color rank seventh most important world tropical subtropical area around serve feed source good pick low-input style well adapted sandy soil drought United States 2022 over 130,000 acre generate nearly 600 southeastern lead domestic Auburn University weather article publish March colleague Scott Graham Kathy Lawrence various among plant-parasitic specifically root system cause gall plant water nutrient stunted growth yield crack make interact pathogen exacerbate insect know storage 7 annual southern flea quality leave economic own resistance better meanwhile newer high robust performance however resist guava species spread next season winter field spring toxic green bridge effect habitat feeder symptom infection biological property microbe Beauveria bassiana agent formulate environmentally friendly product easy apply similarly beneficial entomopathogenic nematicide Purpureocillium lilacinum solution environmental resistant nematode-resistant cultivar comprehensive cultivation Wisconsin-Madison cschloemer wisc edu
Cylas
sweet potato weevils
Cylas is a genus of sweet potato weevils comprising over 20 described species, classified in the monogeneric tribe Cyladini within the subfamily Brentinae. The genus contains major agricultural pests, particularly Cylas formicarius, which is considered the most serious pest of sweet potato worldwide. Several species including C. formicarius, C. brunneus, and C. puncticollis are known to infest sweet potato crops, causing substantial economic losses through damage to storage roots and vines.
agricultural-pest sweet-potato pheromone Brentidae tropical-agriculture subtropical-agriculture nocturnal cryptic-feeding internal-feeder
Cylas formicarius
Sweet Potato Weevil
Cylas formicarius is a globally significant pest of sweet potato (Ipomoea batatas), causing 30-100% yield losses in over 80 countries. The species exhibits a highly cryptic lifestyle: larvae feed internally within vines and tubers, making chemical control ineffective once infestation occurs. Adults are nocturnal and migratory, with sexual dimorphism in antennae structure. The weevil has been designated a quarantine pest worldwide due to its economic impact on food security and agricultural trade.
pest agricultural quarantine sweet-potato Brentidae nocturnal endophytic cryptic
Eutrichapion
Eutrichapion is a genus of small weevils in the family Brentidae, containing approximately eight described species. Members are characterized by a pear-shaped body form typical of the subfamily Apioninae. The genus was established by Reitter in 1916 and is distributed across parts of Europe and North America.
weevil Brentidae Apioninae pear-shaped-weevil
Exapion ulicis
Gorse Seed Weevil
Exapion ulicis is a small seed-feeding weevil specialized on gorse (Ulex europaeus). Adults are light gray with a prominent snout roughly half the body length. The species is native to western Europe and has been introduced to New Zealand, California, Hawaii, and other regions as a biological control agent targeting invasive gorse populations. Larval feeding destroys seeds within pods, reducing plant spread, while adult feeding on stems and spines causes minor damage.
biological-control invasive-species-management seed-predator host-specialization temporal-isolation Brentidae Coleoptera Ulex-europaeus gorse western-Europe California New-Zealand Hawaii spring-activity oviposition-cues pod-fecundity parasitoid seed-destruction noctuid pest-control-agent established-introduction native-range-Europe introduced-range-Pacific Chile Belgium Oregon northern-California forest-gaps pastures natural-areas seed-loss intensity-of-attack reproductive-isolation ecological-specialization sympatric-divergence host-phenology pod-size seed-content female-choice feeding-damage round-holes stem-feeding spine-feeding larval-development pupal-period 6-8-weeks-larval-feeding 2-months-pupation within-pod-development seed-to-ovule-ratio mature-seeds intact-seeds parasitization-rate population-abundance fecund-pod-targeting whole-plant-traits flower-traits pod-traits choice-experiments common-garden Brittany Scotland Reunion host-availability seasonal-activity morphological-identification mitochondrial-sequences nuclear-sequences phylogeny host-races divergent-selection ecological-speciation sympatric-populations spring-infestation autumn-infestation introduced-with-gorse not-initially-introduced invasive-plant plant-insect-interactions oviposition-behavior feeding-behavior preference-patterns multiple-trait-use surface-cues internal-cues pod-characteristics host-choice plant-susceptibility invasion-biology entomological-experimentalis pan-pacific-entomologist diversity-journal ecological-entomology Coombs-2004 HEAR-photo-gallery iNaturalist GBIF NCBI Forster-1771 Curculionoidea Apionidae Fabaceae Genisteae noxious-weed agent-of-biological-pest-control light-gray long-snout straight-snout 2-3-mm small-weevil seed-weevil gorse-seed-weevil established-populations percentage-of-pods-infested spatial-variation temporal-variation seed-set seed-production seed-predation-impact ecosystem-service weed-biological-control classical-biological-control inundative-biological-control self-sustaining-populations non-target-effects host-specificity reproductive-phenology phenological-matching phenological-isolation allochronic-speciation temporal-niche resource-partitioning competitive-exclusion character-displacement molecular-phylogenetics COI ITS morphological-characters individual-variation environmental-variation mitochondrial-DNA nuclear-DNA species-differentiation genetic-divergence ecological-divergence adaptive-radiation host-shift host-race-formation sympatric-speciation reinforcement prezygotic-isolation postzygotic-isolation habitat-fragmentation population-structure gene-flow local-adaptation phenotypic-plasticity genetic-drift natural-selection sexual-selection founder-effect bottleneck invasion-genetics enemy-release evolutionary-potential rapid-evolution contemporary-evolution eco-evolutionary-dynamics community-ecology trophic-interactions food-web ecosystem-function ecosystem-process nutrient-cycling energy-flow population-dynamics metapopulation source-sink dispersal colonization establishment spread impact-assessment non-target-risk efficacy establishment-success population-establishment field-release monitoring evaluation adaptive-management integrated-pest-management sustainable-agriculture conservation-biological-control augmentative-biological-control inoculative-biological-control natural-enemy herbivore phytophagous monophagous oligophagous polyphagous specialist generalist co-evolution coevolutionary-arms-race plant-defense herbivore-offense induced-defense constitutive-defense direct-defense indirect-defense volatile-organic-compounds extrafloral-nectaries trophic-cascades apparent-competition enemy-mediated-apparent-competition intraguild-predation multitrophic-interactions trait-mediated-indirect-effects density-mediated-indirect-effects ecosystem-engineering niche-construction extended-phenotype environmental-feedback eco-evolutionary-feedback evolutionary-rescue genetic-rescue 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naturalized casual transient ephemeral persistent established spreading invasive-potential invasiveness impact ecological-impact economic-impact social-impact environmental-impact negative-impact positive-impact beneficial detrimental nuisance pest weed pathogen disease-vector public-health veterinary-health crop-health forest-health rangeland-health ecosystem-health One-Health planetary-health ecohealth conservation-medicine disease-ecology parasitology entomology medical-entomology veterinary-entomology agricultural-entomology forest-entomology urban-entomology aquatic-entomology systematics taxonomy phylogenetics evolutionary-biology population-biology ecosystem-ecology landscape-ecology global-ecology macroecology biogeography historical-biogeography ecological-biogeography island-biogeography continental-biogeography latitudinal-gradient altitudinal-gradient species-area-relationship island-species-richness equilibrium-theory nonequilibrium-theory neutral-theory niche-theory assembly-rules priority-effects mass-effects species-sorting competition predation herbivory parasitism mutualism commensalism amensalism facilitation inhibition tolerance succession primary-succession secondary-succession disturbance recovery resilience resistance stability persistence turnover replacement extinction immigration emigration birth death reproduction survival growth development metamorphosis complete-metamorphosis holometabolous hemimetabolous ametabolous egg larva pupa adult instar ecdysis molting diapause quiescence aestivation hibernation overwintering overwintering-stage overwintering-site overwintering-strategy cold-hardiness freeze-tolerance freeze-avoidance supercooling cryoprotectants thermal-biology thermoregulation ectothermy poikilothermy behavioral-thermoregulation microhabitat-selection basking shading stilting perching roosting sheltering burrowing mining gall-formation leaf-rolling leaf-tying silk-production web-spinning nest-construction oviposition-site-selection host-plant-selection mate-choice sperm-competition cryptic-female-choice polyandry polygyny monogamy promiscuity lekking territoriality aggression defense predator-avoidance antipredator-behavior crypsis masquerade mimicry Batesian-mimicry Müllerian-mimicry automimicry aggressive-mimicry startle-display thanatosis death-feigning autotomy reflex-bleeding chemical-defense mechanical-defense physical-defense behavioral-defense mutualistic-defense plant-animal-interactions pollination seed-dispersal antagonism synergism antagonistic-pleiotropy trade-offs life-history life-history-strategy r-selection K-selection bet-hedging iteroparity semelparity annual perennial biennial pluriannual longevity lifespan generation-time development-time growth-rate reproductive-rate fecundity fertility virility mating-success reproductive-success fitness inclusive-fitness kin-selection group-selection multilevel-selection individual-selection artificial-selection social-selection ecological-selection stabilizing-selection directional-selection disruptive-selection balancing-selection frequency-dependent-selection negative-frequency-dependent-selection positive-frequency-dependent-selection apostatic-selection antiapostatic-selection rare-type-advantage common-type-disadvantage heterozygote-advantage heterosis hybrid-vigor inbreeding-depression outbreeding-depression genetic-load mutational-load segregational-load substitutional-load drift-load migration-load mutation recombination chromosomal-rearrangement genome-evolution transposable-elements horizontal-gene-transfer endosymbiosis symbiogenesis holobiont hologenome extended-evolutionary-synthesis niche-construction-theory ecological-evolutionary-developmental-biology eco-evo-devo developmental-plasticity reaction-norm genotype-environment-interaction GxE norm-of-reaction plasticity canalization genetic-assimilation genetic-accommodation cryptic-genetic-variation evolutionary-capacitance evolvability robustness modularity integration correlation constraint trade-off pleiotropy epistasis additive-genetic-variance dominance-variance epistatic-variance genetic-variance phenotypic-variance environmental-variance heritability narrow-sense-heritability broad-sense-heritability response-to-selection breeder's-equation quantitative-genetics molecular-genetics genomics transcriptomics proteomics metabolomics phenomics ecogenomics conservation-genomics functional-genomics structural-genomics comparative-genomics evolutionary-genomics phylogenomics metagenomics microbiome virome mycobiome bacteriome archaeome eukaryome extended-genotype keystone-species ecosystem-engineer foundation-species dominant-species subordinate-species transient-species satellite-species core-species peripheral-species edge-species interior-species habitat-generalist habitat-specialist edge-habitat interior-habitat matrix-habitat corridor stepping-stone source-habitat sink-habitat patch fragment landscape seascape 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Fallapion
Fallapion is a genus of minute seed weevils in the family Brentidae (subfamily Apioninae), established by Kissinger in 1968. Members of this genus are small beetles characterized by their elongated rostrum and compact body form typical of apionine weevils. The genus is taxonomically distinct from the broader Apion genus complex, with species-level taxonomy requiring detailed morphological examination. Observations of this genus are relatively sparse, with limited documented occurrences in natural history databases.
Brentidae Apioninae seed-weevil minute-weevil Kissinger-1968
Fallapion bischoffi
Fallapion bischoffi is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion belongs to the subfamily Apioninae, a group of small weevils commonly known as seed weevils or apionids. As a member of the Brentidae, this species possesses the characteristic elongated snout (rostrum) typical of the family. Information regarding the specific biology and distribution of this species is limited in available sources.
Coleoptera Brentidae Apioninae weevil seed-weevil straight-snouted-weevil
Fallapion ellipticum
Fallapion ellipticum is a species of straight-snouted weevil in the family Brentidae. Members of this genus are characterized by their elongated rostrum and association with woody plants. The specific epithet 'ellipticum' refers to the elliptical body shape. Information on this species remains limited due to its rarity in collections and observations.
Coleoptera Brentidae Fallapion straight-snouted-weevil rare data-deficient
Fallapion funereum
Fallapion funereum is a species of straight-snouted weevil in the family Brentidae. As a member of the genus Fallapion, it belongs to a group of small weevils characterized by elongated rostrums. Very few documented observations of this species exist, and its biology remains poorly known. The specific epithet 'funereum' (Latin for 'funeral' or 'deathly') likely refers to its dark coloration.
Coleoptera Brentidae weevil straight-snouted-weevil Fallapion poorly-known data-deficient
Fallapion impunctistriatum
Fallapion impunctistriatum is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion comprises small weevils characterized by elongated rostra and reduced wings. Species in this genus are associated with woody plants, though specific ecological data for F. impunctistriatum remain limited. The species epithet 'impunctistriatum' refers to the absence of punctate striae on the elytra, a distinguishing morphological feature.
Brentidae weevil straight-snouted-weevil Coleoptera
Fallapion obsoletum
Fallapion obsoletum is a species of straight-snouted weevil in the family Brentidae. The genus Fallapion comprises small weevils, and this species is distinguished by its relatively unmarked, dull coloration implied by the specific epithet "obsoletum" (meaning worn or indistinct). Like other brentids, it possesses an elongated rostrum and lacks the elbowed antennae typical of true weevils (Curculionidae). Published records for this species are sparse, and its biology remains poorly documented.
Brentidae straight-snouted-weevil Coleoptera Fallapion weevil
Fallapion occidentale
Black Sunflower Stem Weevil
Fallapion occidentale, commonly known as the black sunflower stem weevil, is a small weevil in the family Brentidae (primitive weevils) that feeds on sunflower plants (Helianthus spp.). Adults are black and approximately 3 mm in length. The species develops internally within sunflower stems and leaf petioles, with larvae feeding on pith tissue. It has been documented in association with the sunflower stem weevil (Cylindrocopturus adspersus) in Texas, though it causes minimal economic damage compared to other sunflower pests. Pupation occurs within the plant, with adults emerging in late summer.
sunflower-pest stem-borer Brentidae minor-pest North-America Helianthus
Ischnopterapion virens
White Clover Weevil
Ischnopterapion virens is a small weevil species in the family Brentidae (subfamily Apioninae), commonly known as the White Clover Weevil. The species name 'virens' derives from Latin, meaning 'green,' likely referring to a greenish coloration characteristic of this beetle. The genus Ischnopterapion belongs to a group of weevils historically classified in the family Apionidae, now treated as a subfamily within Brentidae. This species has been documented across multiple island localities in the Azores archipelago (Faial, Pico, São Jorge, Santa Maria) as well as in New Brunswick, Canada, suggesting a broad but potentially disjunct distribution pattern.
Brentidae Apioninae weevil herbivore clover Azores Canada green
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.
weevil Brentidae Coleoptera straight-snouted-weevil Europe northern-Europe scarce-data limited-observations
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.
Brentidae weevil Coleoptera Canada Brown-1944
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.
Brentidae weevil seed-predator fruit-feeder biological-control
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.
weevil Brentidae Nanophyinae aquatic-plants seed-feeder
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.
Coleoptera Brentidae Nanophyes weevil invasive Europe North-America
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.
brentidae weevil canada coleoptera
Paratrachelizus
Paratrachelizus is a genus of primitive weevils in the family Brentidae, established by Kleine in 1921. The genus contains more than 30 described species. Members of this genus are characterized by the elongated, straight rostrum typical of brentid weevils. The genus has been recorded from Colombia.
weevil primitive-weevil Brentidae Coleoptera
Perapion punctinasum
Perapion punctinasum is a small weevil species in the family Brentidae, originally described from North America in 1884. It belongs to a genus of apionid-like weevils characterized by their compact body form and elongated rostrum. The species is recorded from multiple Canadian provinces, suggesting a broad northern distribution. Like other members of Perapion, it is likely associated with herbaceous vegetation, though specific host relationships remain poorly documented.
weevil Brentidae North-America Canada Coleoptera
Stenopterapion
Stenopterapion is a genus of weevils in the family Brentidae, established by Bokor in 1923. It contains approximately six described species distributed primarily in Europe. The genus is characterized by a pear-shaped body form typical of many brentid weevils. Species within this genus are relatively small and associated with herbaceous vegetation.
weevil Brentidae Apioninae legume-associated European
Stereodermus
Stereodermus is a genus of primitive weevils in the family Brentidae, comprising more than 40 described species. The genus occurs in both the Neotropical and Oriental regions, with substantial diversity in Central and South America. Species are characterized by elongated, cylindrical bodies typical of brentid weevils. Taxonomic work has focused heavily on the Neotropical fauna, with recent revisions describing new species and resolving synonymies.
Brentidae primitive-weevils Neotropical Oriental taxonomic-revision
Synapiina
Synapiina is a subtribe of weevils within the family Brentidae, characterized by elongated, slender bodies and antennae that are straight or only weakly elbowed. Members of this subtribe are distinguished from other brentid groups by specific genitalic and rostral features. The subtribe includes multiple genera and is primarily distributed in tropical and subtropical regions. These weevils are associated with woody plants, though specific host relationships remain poorly documented for many species.
weevils Brentidae tropical-insects wood-associated-beetles
Trachelizini
primitive weevils
Trachelizini is a tribe of primitive weevils within the family Brentidae, subfamily Brentinae. The tribe contains at least 100 genera organized into nine recognized subtribes, with two additional genera currently unplaced. Members are characterized by elongated, slender body forms typical of brentid weevils. The tribe has been subject to significant taxonomic revision, with subtribal classifications established by multiple authors from 1865 to 1999.
Brentidae Brentinae Coleoptera weevils primitive-weevils tribe
Tracheloschizus
Tracheloschizus is a genus of straight-snouted weevils in the family Brentidae, established by Damoiseau in 1966. The genus belongs to the weevil superfamily Curculionoidea and is characterized by members of this primarily tropical family. Brentidae weevils are distinguished from the more familiar Curculionidae by their elongated, straight rostrums rather than the curved snouts typical of true weevils. The genus is relatively poorly documented in public sources, with limited species-level information available.
Coleoptera Brentidae weevil Curculionoidea genus tropical Damoiseau-1966
Trichapion
Trichapion is a genus of weevils in the family Brentidae (formerly placed in Apionidae). The genus was established by Wagner in 1912. Several species have been studied as biological control agents, particularly for invasive Sesbania weeds. Species were transferred from the genus Apion during taxonomic revisions.
weevil Brentidae Apioninae biological-control Fabaceae Sesbania invasive-species-management
Trichapion disparatum
Trichapion disparatum is a species of straight-snouted weevil in the family Brentidae, subfamily Apioninae. Members of this genus are small, slender weevils characterized by elongated rostrums and are commonly associated with leguminous host plants. The species is part of a taxonomically complex group of apionine weevils that have undergone significant revision in recent decades.
Coleoptera Brentidae Apioninae weevil seed-predator legume-associate
Trichapion leporinum
Trichapion leporinum is a species of straight-snouted weevil in the family Brentidae, described by Salsbury in 1987. The species epithet "leporinum" (hare-like) may reference a morphological trait or host association. Distribution records indicate presence in Manitoba, Canada. As a member of the Apioninae subfamily, it likely exhibits the slender body form and elongated rostrum characteristic of this group.
Brentidae Apioninae weevil Coleoptera North-America Manitoba straight-snouted-weevil
Trichapion modicum
Trichapion modicum is a species of straight-snouted weevil in the family Brentidae. The genus Trichapion was established to accommodate species previously placed in Apion, distinguished by morphological features of the rostrum and antennae. This species has been documented in Manitoba, Canada. Like other brentid weevils, it possesses an elongated rostrum and elbowed antennae. Specific ecological details for this species remain poorly documented.
Brentidae weevil Coleoptera Canada straight-snouted-weevil Apioninae
Trichapion nigrum
Trichapion nigrum is a species of straight-snouted weevil in the family Brentidae, first described by Herbst in 1797. It belongs to a genus of small weevils characterized by elongated rostrums. The species has been documented in eastern Canada, with records from New Brunswick, Ontario, and Quebec. Like other members of Brentidae, it is likely associated with plant material, though specific ecological details remain poorly documented.
Brentidae weevil Coleoptera Canada eastern-North-America Apioninae
Trichapion porcatum
Trichapion porcatum is a species of straight-snouted weevil in the family Brentidae. It is recorded from eastern Canada, specifically New Brunswick, Ontario, and Quebec. The genus Trichapion comprises small weevils associated with leguminous plants. Limited observational data exists for this species.
weevil straight-snouted-weevil eastern-Canada Brentidae Trichapion
Trichapion proclive
Trichapion proclive is a species of straight-snouted weevil in the family Brentidae, first described by John Lawrence LeConte in 1857. It belongs to a genus characterized by elongated rostra and association with leguminous host plants. Records indicate presence in British Columbia, Canada, though observations remain sparse with limited documented occurrence data.
Brentidae Curculionoidea weevil North-America data-deficient
Trichapion reconditum
Trichapion reconditum is a species of straight-snouted weevil in the family Brentidae. It is a small beetle with an elongated rostrum, characteristic of the family. The species has been documented in eastern Canada, with records from New Brunswick, Ontario, and Quebec. It appears to be rarely encountered, with very few observations in citizen science databases.
Brentidae weevil Coleoptera Canada
Trichapion roseae
Trichapion roseae is a small weevil in the family Brentidae, formerly placed in the family Apionidae. It is associated with plants in the genus Rosa (roses), with adults and larvae feeding on various parts of the host. The species is native to the Palearctic region and has been introduced to North America. It is recognized by its elongated rostrum and association with rose hosts.
Coleoptera Brentidae Apioninae Trichapion rose-weevil Rosa herbivore Palearctic introduced-species garden-pest
Trichapion rostrum
baptisia seed pod weevil, wild indigo weevil
Trichapion rostrum is a weevil species in the family Brentidae, commonly known as the baptisia seed pod weevil or wild indigo weevil. Adults are entirely black with an elongated rostrum bearing antennae near its base. The species is tightly associated with wild indigo plants (genus Baptisia), where females deposit eggs in seed pods and larvae develop by feeding on seeds. Its seed predation can negatively impact host plant reproduction.
seed-predator monophagous Brentidae
Trichapion sp-nr-albidulum
Trichapion sp-nr-albidulum is an undescribed or near-identified species within the genus Trichapion, a group of small weevils in the family Brentidae. Members of this genus are characterized by their elongated, cylindrical bodies and distinctive rostrums. The 'sp-nr-albidulum' designation indicates a specimen that closely resembles T. albidulum but has not been formally confirmed to that species. These weevils are associated with leguminous host plants and are part of the diverse apionine fauna of North America.
undescribed-species near-albidulum Brentidae Apioninae legume-associated North-America cryptic-species requires-taxonomic-revision
Trichapion tenuirostrum
Trichapion tenuirostrum is a species of straight-snouted weevil in the family Brentidae. The genus Trichapion is distinguished by its elongate, slender rostrum and association with leguminous host plants. This species is recorded from the Canadian prairie provinces. Like other members of the genus, it likely develops in seeds or pods of Fabaceae, though specific host associations for this species remain poorly documented.
weevil Brentidae seed-feeder prairie Canadian-endemic