Cerambycidae

Guides

Susuacanga falli
Susuacanga falli is a species of longhorn beetle (family Cerambycidae) described by Linsley in 1940. The species belongs to the tribe Eburiini within the subfamily Cerambycinae. It has been recorded in Mexico and the United States, though specific ecological details remain poorly documented. The genus Susuacanga comprises several species of medium-sized cerambycid beetles primarily distributed in the Americas.
Cerambycidae Cerambycinae Eburiini Susuacanga longhorn-beetle Coleoptera beetle North-America Mexico United-States
Susuacanga stigmatica
Speckle-necked Longhorn Beetle
Susuacanga stigmatica is a longhorn beetle species in the family Cerambycidae, first described by Chevrolat in 1835. The species belongs to the tribe Eburiini and is known from records in Guatemala, Mexico, and the United States. It is commonly referred to as the Speckle-necked Longhorn Beetle. The genus Susuacanga includes multiple species distributed in the Americas.
Cerambycidae Cerambycinae Eburiini longhorn-beetle Coleoptera Chevrolat-1835 North-America Central-America Guatemala Mexico United-States
Synaphaeta guexi
Spotted Tree Borer
Synaphaeta guexi is a longhorn beetle and the sole species in its genus. It inhabits the Pacific coastal region of North America, from British Columbia to California. The species develops in hardwood trees and is known by the common name Spotted Tree Borer. It was described by John Lawrence LeConte in 1852.
Cerambycidae longhorn-beetle wood-borer Pacific-North-America hardwood-associate monotypic-genus
Tessaropa tenuipes
Tessaropa tenuipes is a species of longhorn beetle (family Cerambycidae) described by Haldeman in 1846. It is currently classified in the subfamily Cerambycinae, tribe Methiini. The species is known from North America. Limited biological information is available for this taxon.
Cerambycidae Cerambycinae Methiini North-America longhorn-beetle
Tetranodus
Tetranodus is a genus of longhorn beetles (Cerambycidae) in the tribe Tillomorphini. The genus was established by Linell in 1896 and contains seven described species distributed in the Americas. Species have been described from the late 19th century through the late 20th century, with several described by Chemsak and colleagues. The genus is placed in the subfamily Cerambycinae, a diverse group of primarily wood-boring beetles.
Cerambycidae Cerambycinae Tillomorphini longhorn-beetles Neotropical
Tetraopes
Milkweed Longhorn Beetles
Tetraopes is a genus of specialized longhorn beetles (Cerambycidae: Lamiinae) distributed from Guatemala to Canada. The genus is defined by extreme host specificity to milkweeds (Asclepias and related genera in Apocynaceae), with larvae feeding on roots and adults feeding on leaves and flowers. All species exhibit aposematic red-and-black coloration advertising their sequestration of cardiac glycosides from host plants. The eyes are completely divided by antennal insertions, giving rise to both the scientific name ("four eyes") and common name "four-eyed milkweed beetle" for some species. The genus represents a classic example of coevolutionary radiation with its host plants.
Cerambycidae Lamiinae Tetraopini milkweed-beetle four-eyed-beetle aposematic-coloration cardiac-glycoside-sequestration latex-vein-cutting coevolution host-specialization root-feeding-larvae Müllerian-mimicry prairie-specialist sandhills-endemic
Tetraopes annulatus
Ringed Long-horned Beetle
Tetraopes annulatus is a species of longhorn beetle in the subfamily Lamiinae, described by John Lawrence LeConte in 1847. It is distributed across the northern United States and southern Canada, with records from Alberta, Manitoba, and Saskatchewan. Like other members of the genus Tetraopes, this species is a milkweed specialist, with larvae feeding on roots and adults feeding on foliage.
longhorn-beetle milkweed-beetle Tetraopes Cerambycidae specialist-herbivore aposematic-coloration cardenolide-sequestration
Tetraopes basalis
western milkweed longhorn beetle
Tetraopes basalis is a longhorn beetle in the family Cerambycidae, commonly known as the western milkweed longhorn beetle. It was described by John Lawrence LeConte in 1852 and occurs in the United States. The species is closely associated with milkweed plants (Asclepias), on which adults feed and larvae develop. Adults are most active from April to August.
Cerambycidae Lamiinae Tetraopini milkweed Asclepias longhorn-beetle western-United-States April-August
Tetraopes discoideus
Tetraopes discoideus is a small milkweed longhorn beetle in the family Cerambycidae, described by John Lawrence LeConte in 1847. Adults measure 7–9 mm in length, making this species notably smaller than congeners. The species is associated with milkweed plants (Asclepias spp.) throughout its range in the southwestern United States and Mexico. Adults have been observed resting, feeding, and mating on milkweed stems and flowers. Larvae develop by feeding on milkweed roots, either tunneling directly into large taproots or living in surrounding soil when roots are small.
Cerambycidae Lamiinae Tetraopini milkweed-beetle specialist-herbivore southwestern-US Mexico root-feeder Asclepias small-size LeConte-1847 Chiricahua-Mountains Santa-Rita-Mountains Arizona summer-active diurnal non-phototactic
Tetraopes femoratus
Red-femured Milkweed Borer
Tetraopes femoratus is a longhorned beetle (family Cerambycidae) in the subfamily Lamiinae, described by John Lawrence LeConte in 1847. It is one of several North American milkweed borer beetles in the genus Tetraopes, all of which are specialized feeders on milkweeds (Asclepias spp.). The species occurs across western and central North America from Canada to Mexico, with records from the western United States and Great Plains region. Adults are typically encountered in late summer and fall, with September collecting records from Oklahoma and late August observations from sagebrush habitats in Nevada.
milkweed-borer longhorned-beetle cerambycidae aposematic-coloration cardenolide-sequestration asclepias-specialist western-north-america
Tetraopes linsleyi
A milkweed longhorn beetle described by Chemsak in 1963. Like other members of the genus Tetraopes, it is a specialist herbivore associated with milkweeds (Asclepias), possessing bright aposematic coloration and the characteristic divided eyes that give the genus its name. The species is known from the United States, though specific details about its range and biology remain limited.
Cerambycidae Lamiinae Tetraopini milkweed-beetle longhorn-beetle aposematic specialist-herbivore United-States Chemsak-1963 Tetraopes
Tetraopes mandibularis
Tetraopes mandibularis is a species of longhorn beetle in the family Cerambycidae, described by Chemsak in 1963. The species belongs to the genus Tetraopes, a group of milkweed-associated beetles. It is known from the United States, though specific details about its biology and ecology remain poorly documented in available literature.
Cerambycidae Lamiinae Tetraopini Tetraopes longhorn-beetle milkweed-beetle
Tetraopes pilosus
Pilose Milkweed Beetle
Tetraopes pilosus is a longhorned beetle in the family Cerambycidae, described by Chemsak in 1963. It is a milkweed specialist restricted to Quaternary sandhills of the central and southern Great Plains. Adults are characterized by dense white pubescence and bright red-and-black aposematic coloration. The species is closely associated with sand milkweed (Asclepias arenaria), feeding on both foliage as adults and roots as larvae.
milkweed-beetle sand-milkweed cardenolide-sequestration aposematic-coloration sandhills Great-Plains root-borer vein-cutting-behavior Chemsak-1963 specialist-herbivore xeric-adaptation pubescence Tetraopini Lamiinae Cerambycidae Coleoptera
Tetraopes quinquemaculatus
five-spotted milkweed beetle
Tetraopes quinquemaculatus is a milkweed-associated longhorn beetle (Cerambycidae) described by Haldeman in 1847. It is native to North America and is one of several species in the genus Tetraopes that specialize on milkweeds (Asclepias). The species is considerably less common than the widespread T. tetrophthalmus and has been documented from sand prairie and dry sandy habitats in the Mississippi River Alluvial Basin. Adults are visually distinctive and larvae develop as root borers in living milkweed plants.
milkweed-beetle sand-prairie root-borer aposematic-coloration Asclepias-specialist Cerambycidae Lamiinae Mississippi-River-Alluvial-Basin endangered-habitat
Tetraopes skillmani
Skillman's Milkweed Longhorn
Tetraopes skillmani is a longhorn beetle (Cerambycidae: Lamiinae) described in 2004 from Arizona. It belongs to the milkweed beetle genus Tetraopes, whose members are obligate specialists on Asclepiadaceae host plants. The type locality is near Duquesne in southeastern Arizona, where collectors found its host plant Sarcostemma sp. but did not encounter the beetles during the initial survey.
cerambycidae tetraopini milkweed-beetle asclepiadaceae host-specialist arizona-endemic sky-islands root-borer
Tetraopes sublaevis
Tetraopes sublaevis is a species of longhorn beetle in the subfamily Lamiinae, described by Thomas Lincoln Casey Jr. in 1913. Like other members of the genus Tetraopes, it is a milkweed specialist. The species is known from the United States, though specific details about its biology and distribution within North America remain poorly documented compared to better-known congeners such as T. tetraophthalmus and T. texanus.
Cerambycidae Lamiinae Tetraopini milkweed-beetle North-America United-States Casey-1913
Tetraopes texanus
Texas Milkweed Beetle
Tetraopes texanus is a longhorn beetle (Cerambycidae) endemic to North American grasslands, described by George Henry Horn in 1878. The species exhibits a disjunct distribution with two primary population clusters: one in Texas and Oklahoma, and another in the Black Belt Prairie of Mississippi and Alabama. Genetic studies indicate these populations diverged in the mid-Pleistocene and remain incompletely isolated. The species is a milkweed specialist, utilizing Asclepias species as host plants throughout its life cycle. Listed as Near Threatened by IUCN due to habitat loss, limited range, and increasing genetic isolation among fragmented populations.
Cerambycidae Tetraopini milkweed-beetle grassland-specialist Asclepias conservation disjunct-distribution population-genomics Near-Threatened Black-Belt-prairie calcareous-soils
Tetropium abietis
Round-headed Fir Borer
Tetropium abietis is a longhorn beetle species in the family Cerambycidae, described by Fall in 1912. The common name "Round-headed Fir Borer" suggests an association with fir trees (genus Abies). It is a North American species with distribution records from Canada (British Columbia) and the United States. Like other members of the genus Tetropium, it is likely a wood-boring beetle whose larvae develop in coniferous trees.
Cerambycidae Tetropium wood-boring-beetle conifer-associated North-America British-Columbia United-States
Tetropium cinnamopterum
Eastern Larch Borer
Tetropium cinnamopterum is a native North American cerambycid beetle in the tribe Tetropiini. Adults are distinguished from the closely related T. parvulum by eye shape, scutellar structure, external genitalia, and pronotal puncture number; larvae are distinguished by urogomphi morphology. The species has been recorded from various conifer hosts, with larvae developing in conifer wood. It is transcontinental in Canada and occurs sympatrically with invasive T. fuscum in Atlantic Canada, where cross-attraction to the aggregation pheromone fuscumol may occur. Both sexes respond to (S)-fuscumol synergized by host monoterpenes and ethanol.
Cerambycidae Tetropiini conifer woodboring pheromone fuscumol native North-America Canada sympatric cross-attraction vector Ophiostoma fungi beetle-fungus-symbiosis invasive-species-interaction Tetropium-fuscum chemical-ecology forest-pest longhorn-beetle
Tetropium fuscum
Brown Spruce Longhorn Beetle
Tetropium fuscum is a wood-boring cerambycid beetle native to Europe and Northern Asia, established as an invasive species in Atlantic Canada since at least 1990. The species is a documented pest of spruce trees (Picea spp.), with larvae developing in the phloem of host trees. Adult males produce an aggregation pheromone called fuscumol that attracts both sexes, particularly when combined with host tree volatiles. In its introduced Canadian range, it has been observed infesting stressed and moribund red spruce, with larval galleries sometimes girdling stems and causing tree mortality.
cerambycidae spondylidinae longhorn-beetle wood-borer forest-pest invasive-species pheromone fuscumol spruce-pest phloeophagous
Tetropium parallelum
Tetropium parallelum is a species of longhorned beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the genus Tetropium, which comprises woodboring beetles primarily associated with coniferous trees. The species is recorded from western North America, including Alberta, Canada and the United States. Like other members of its genus, it likely develops in dead or dying conifer wood, though specific biological details remain poorly documented.
Cerambycidae Tetropiini woodboring-beetle conifer-associate western-North-America Casey-1891
Tetropium parvulum
Northern Spruce Borer
Tetropium parvulum, the northern spruce borer, is a small cerambycid beetle specialized on spruce hosts. It was elevated from synonymy with T. cinnamopterum based on distinct morphological differences in larvae and adults, and exhibits strict host specificity to Picea compared to the conifer generalist T. cinnamopterum. The species has a one-year life cycle and is an economically important borer of white and Engelmann spruce logs in western Canada.
Cerambycidae spruce-borer wood-boring-beetle forest-pest western-Canada conifer-specialist Tetropium Picea economic-pest one-year-life-cycle Tetropium-parvulum Northern-Spruce-Borer Tetropium-cinnamopterum-complex morphological-diagnosis strict-host-specificity Tetropium-alaskanum-synonym Rhimphoctona-alaskensis-parasitoid spruce-log-pest Alberta-forestry boreal-forest-insect phloem-feeder cambium-borer L-shaped-galleries early-summer-emergence woodpecker-predation disease-mortality excess-heat-mortality Tetropium-velutinum-comparison lectotype-designation Tetropium-parallelum Tetropium-schwarzianum coniferous-forest-decomposer primary-borer Tetropium-taxonomy Casey-1891 Canadian-Entomologist economic-entomology forest-health timber-pest spruce-regeneration Picea-glauca-pest Picea-engelmannii-pest western-Canadian-distribution North-American-Cerambycidae Tetropium-morphology larval-urogomphi adult-genitalia pronotal-punctation eye-morphology scutellum-structure host-preference-divergence conifer-specialist-vs-generalist sympatric-species species-elevation-from-synonymy type-specimen-examination diagnostic-key forest-insect-natural-enemies insect-disease-mortality parasitoid-wasp woodpecker-insectivory thermal-mortality gallery-depth overwintering-biology spring-pupation September-larval-maturity one-year-univoltine spruce-logging-impact forest-management integrated-pest-management boreal-forest-ecology subcortical-insect phloeophagous-beetle xylophagous-larvae wood-degradation nutrient-cycling forest-succession disturbance-ecology fire-killed-spruce windthrow-spruce salvage-logging-insect standing-dead-timber spruce-beetle-complex Scolytinae-competitor Cerambycidae-community coniferous-wood-borer-guild North-American-forest-insects western-Canadian-entomology Alberta-entomology British-Columbia-entomology Manitoba-entomology Labrador-entomology transcontinental-distribution boreal-forest-biodiversity spruce-ecosystem-engineer 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Tetropium schwarzianum
Tetropium schwarzianum is a species of longhorn beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the tribe Tetropiini and is closely related to T. cinnamopterum based on morphological examination of type specimens. The species occurs in eastern North America, with distribution records from Canada (New Brunswick, Newfoundland, Nova Scotia, Ontario). As with other Tetropium species, adults are likely associated with coniferous hosts, though specific host records for this species remain undocumented in available sources.
Cerambycidae Tetropiini conifer-associated North-American Casey-1891
Tetropium undescribed
An undescribed species in the longhorned beetle genus Tetropium, collected during nocturnal fieldwork in ponderosa pine forest in southwestern Utah. The specimen was found on the trunk of a large, recently-dead ponderosa pine alongside other woodboring beetles including Arhopalus species and Trogossitidae. This represents one of numerous undescribed cerambycid species awaiting formal taxonomic description.
Cerambycidae Spondylidinae undescribed-species woodboring-beetle Pinus-ponderosa nocturnal Utah western-North-America new-species taxonomy
Tetropium velutinum
Western Larch Borer
Tetropium velutinum, commonly known as the Western Larch Borer, is a species of longhorn beetle in the family Cerambycidae. It was described by John Lawrence LeConte in 1869. The species is associated with coniferous forests of western North America, particularly with larch trees (Larix spp.) which serve as its larval host. Like other members of the genus Tetropium, adults are typically attracted to recently dead or dying host trees.
Cerambycidae Tetropiini wood-borer conifer larch western-North-America forest-beetle
Tetrops praeusta
Tetrops praeusta is a synonym of Tetrops praeustus (Linnaeus, 1758), a small longhorn beetle in the subfamily Lamiinae. The name has been used in historical literature but is not currently accepted. The valid species Tetrops praeustus is known from Europe, where it develops in woody plants.
synonym Cerambycidae Lamiinae Europe
Thryallis
Thryallis is a genus of longhorn beetles (Cerambycidae: Lamiinae: Anisocerini) established by Thomson in 1858. The genus is known to include species that function as wood-boring agricultural pests. Thryallis undatus has been documented damaging Persian lime orchards in Veracruz, Mexico, where larvae tunnel into trunks and branches causing tree mortality. The genus name has been subject to nomenclatural confusion with a plant genus of the same name in Malpighiaceae.
Cerambycidae Lamiinae Anisocerini pest citrus Mexico wood-borer Rutaceae nomenclatural-homonym
Thryallis undatus
Thryallis undatus is a longhorn beetle (Cerambycidae: Lamiinae: Anisocerini) first described by Chevrolat in 1834. The species has been documented as a pest of Persian lime (Citrus latifolia) in commercial orchards in Veracruz, Mexico, where adults oviposit on trunks and branches and larvae create galleries 2–5 cm deep. This represents the first record of the species associated with the Rutaceae family. Native distribution includes Middle America and North America, with records from Guatemala and Honduras.
Cerambycidae Lamiinae Anisocerini longhorn-beetle pest Citrus-latifolia Persian-lime Rutaceae Mexico Veracruz wood-borer agricultural-pest
Tigrinestola
Tigrinestola is a genus of longhorn beetles (family Cerambycidae) in the subfamily Lamiinae, tribe Desmiphorini. It was established by Breuning in 1949 and contains two described species: T. howdeni and T. tigrina. The genus is known from the southwestern United States and Mexico. Tigrinestola tigrina has been documented from oak woodlands in southeastern Arizona, where it has been collected at light and by beating dead oak branches.
Cerambycidae Lamiinae Desmiphorini longhorn-beetles oak-woodland Madrean-Sky-Islands nocturnal wood-borer
Tigrinestola tigrina
Tigrinestola tigrina is a species of longhorn beetle (Cerambycidae: Lamiinae) originally described by Skinner in 1905. The species has been collected from oak habitats in southeastern Arizona, specifically from dead branches of Quercus hypoleucoides (silverleaf oak). It is attracted to ultraviolet and mercury-vapor lights at night. The species occurs in the southwestern United States and Mexico, including Baja California.
Cerambycidae Lamiinae Desmiphorini oak-associated light-attracted southwestern-Nearctic
Tilloclytus
Tilloclytus is a genus of longhorned beetles (Cerambycidae) established by Bates in 1885, currently comprising 14 recognized species distributed across North America, the Caribbean, and northern South America. The genus is notable for containing ant-mimicking species, most notably Tilloclytus geminatus, which exhibits Batesian mimicry of small ants through body shape, coloration, and behavior. Adults are typically small (<10 mm), with some species occasionally found on flowers though they appear less frequently associated with floral visitation than related ant-mimicking genera such as Molorchus and Euderces.
Cerambycidae Cerambycinae ant-mimicry Batesian-mimicry wood-boring-beetles North-America Caribbean hardwood-forest spring-activity Tillomorphini
Toxoleptura vexatrix
Toxoleptura vexatrix is a species of longhorn beetle (family Cerambycidae) in the subfamily Lepturinae. First described by Mannerheim in 1853, this species has been treated under the synonym Brachyleptura vexatrix in some taxonomic treatments. It occurs in North America. As a member of the flower-visiting lepturine beetles, adults likely feed on pollen and nectar, though specific ecological details remain poorly documented in published sources.
Cerambycidae Lepturinae Coleoptera North-America longhorn-beetle flower-beetle
Trachyderina
Trachyderina is a subtribe of longhorn beetles (Cerambycidae) within the tribe Trachyderini and subfamily Cerambycinae. The subtribe includes numerous genera and species distributed primarily in the Americas, with many members exhibiting robust body forms and often striking coloration patterns. These beetles are characterized by their relatively large size among cerambycines and diverse ecological associations with woody plants.
Cerambycidae Cerambycinae Trachyderini longhorn-beetles subtribe
Trachyderini
Trachyderini is a tribe of long-horned beetles (Cerambycidae: Cerambycinae) comprising at least 140 genera and 650 described species. Members are predominantly diurnal, medium to large-sized, and frequently exhibit bright coloration. The tribe has a primarily New World distribution, with notable diversity in southwestern North America, Mexico, Central America, and South America, though some genera extend into the Palearctic region including Mongolia. Several genera display striking mimicry of wasps or other beetles.
Cerambycidae Cerambycinae long-horned-beetles diurnal mimicry New-World Nearctic Neotropical wood-boring flower-visiting
Trachysida
Trachysida is a genus of longhorn beetles (family Cerambycidae) in the subfamily Lepturinae, tribe Lepturini. The genus contains at least two described species: Trachysida aspera (LeConte, 1873) and Trachysida mutabilis (Newman, 1841). Records indicate association with dead wood of hardwood trees, particularly Carpinus caroliniana (blue beech, musclewood).
Cerambycidae Lepturinae Lepturini Coleoptera wood-boring-beetles Carpinus-caroliniana Missouri Vermont North-America
Trachysida aspera
flower longhorn beetle
Trachysida aspera is a species of flower longhorn beetle in the family Cerambycidae. It is native to North America and belongs to the subfamily Lepturinae, a group commonly associated with flowers. The species was first described by LeConte in 1873 under the name Leptura aspera. Three subspecies are currently recognized: T. a. aspera, T. a. brevifrons, and T. a. rufescens.
Cerambycidae Lepturinae flower-longhorn North-America LeConte-1873
Trachysida mutabilis
flower longhorn
Trachysida mutabilis is a species of flower longhorn beetle in the family Cerambycidae. It is found in North America, with confirmed records from Canada (Alberta, British Columbia, Manitoba, New Brunswick) and the United States. The species has been reared from dead branches of Carpinus caroliniana (American hornbeam) in Missouri, where it represents the only known state record.
Cerambycidae Lepturinae Coleoptera North-America wood-boring Carpinus
Tragidion agave
Tragidion agave is a species of longhorned beetle in the family Cerambycidae, described by Swift and Ray in 2008 from California and Baja California. It is one of two species in the genus known to breed in dead flower stalks of Agave (Agavaceae), the other being T. armatum. The species exhibits bright orange and black coloration characteristic of the genus, which functions as mimicry of spider wasps (family Pompilidae).
Cerambycidae Cerambycinae Trachyderini longhorned-beetle mimicry Agave California Baja-California new-species-2008
Tragidion armatum
Tragidion armatum is a longhorn beetle (Cerambycidae) found in the southwestern United States and Mexico. Adults exhibit bright orange and black coloration that mimics tarantula hawk wasps (Pompilidae: Pepsis, Hemipepsis). The species breeds in dead flower stalks of Yucca and Agave plants. It was described by LeConte in 1858, with T. armatum brevipenne later synonymized under it.
Cerambycidae longhorn-beetle mimicry desert Yucca Agave New-Mexico Texas Mexico Pompilidae-mimic
Tragidion deceptum
Tragidion deceptum is a longhorned beetle (Cerambycidae) described by Swift & Ray in 2008 during a comprehensive taxonomic revision of the genus. It occurs in montane habitats of the southwestern United States and northern Mexico, where it breeds in recently dead oak branches. The species exhibits Batesian mimicry of tarantula hawk wasps (Pompilidae: Pepsis, Hemipepsis), with bright orange-red and black coloration. It is one of several Tragidion species historically confused under the name T. 'annulatum' prior to the 2008 revision.
Cerambycidae longhorned-beetle Batesian-mimicry tarantula-hawk-wasp-mimic oak-specialist montane sap-feeder
Tragidion gracilipes
Tragidion gracilipes is a species of longhorn beetle in the family Cerambycidae, described by Linsley in 1940. The genus Tragidion comprises eleven recognized species distributed across North America and Mexico, characterized by bright orange and black coloration that mimics spider wasps (Pompilidae) in the genera Pepsis and Hemipepsis. Species of Tragidion have historically been difficult to identify due to morphological similarity, geographic variation, sexual dimorphism, and potential hybridization. A comprehensive taxonomic review by Swift and Ray (2008) clarified species boundaries within the genus, though T. gracilipes itself remains poorly documented in the literature.
Cerambycidae longhorn-beetle Batesian-mimicry North-America poorly-documented-species
Tragosoma
Tragosoma is a genus of large saproxylic longhorn beetles in the subfamily Prioninae, distributed across the Holarctic region. The genus includes approximately six described species, with Tragosoma depsarium being the most widely studied and the type species. These beetles are obligate deadwood specialists whose larvae develop in the sapwood of conifers, particularly pines. Adults are notable for their robust, somewhat flattened bodies and relatively short antennae compared to other cerambycids. Several species are of conservation concern due to their dependence on specific deadwood microhabitats threatened by modern forestry practices.
Cerambycidae Prioninae Meroscelisini saproxylic coniferous-forest deadwood conservation Holarctic boreal-forest alpine-forest microclimate old-growth-indicator threatened-species wood-boring-beetle Pinus Picea
Tragosoma pilosicorne
Tragosoma pilosicorne is a species of long-horned beetle in the family Cerambycidae, first described by Casey in 1890. It is native to North America and belongs to the subfamily Prioninae, a group of large, robust cerambycids often associated with coniferous wood. The genus Tragosoma includes species with distinctive morphological features and ecological associations with dead or decaying wood in forested habitats.
Cerambycidae Prioninae Meroscelisini wood-boring-beetle conifer-associated North-America nocturnal trap-attracted
Tragosoma soror
Tragosoma soror is a species of longhorned beetle in the family Cerambycidae, subfamily Prioninae, described by Laplante in 2017. It belongs to a genus containing other large, wood-boring beetles. The species is known from very few records, with only a single observation documented on iNaturalist. Like other members of Tragosoma, it likely develops in coniferous wood, though specific biological details remain undocumented in the available literature.
Cerambycidae Prioninae wood-boring-beetle conifer-associate rare-species 2017-description western-North-America Tragosoma Meroscelisini Coleoptera Holarctic-genus limited-data single-observation
Tragosoma spiculum
Tragosoma spiculum is a long-horned beetle in the family Cerambycidae, subfamily Prioninae. The species is found in North America, with records from western Canada (Alberta, British Columbia, Manitoba) and the western United States. Like other members of the genus Tragosoma, it is a wood-boring beetle associated with coniferous forests. The species is attracted to sweet red wine-baited jug traps, suggesting adult feeding on fermenting sap or other sugar sources.
Cerambycidae Prioninae wood-boring-beetle conifer-associate western-North-America nocturnal saproxylic
Trichastylopsis
Trichastylopsis is a genus of longhorn beetles (Cerambycidae) in the subfamily Lamiinae, tribe Acanthocinini. It was established by Lawrence S. Dillon in 1956. The genus currently contains two recognized species: T. albidus (described by LeConte in 1852) and T. hoguei (described by Chemsak & Linsley in 1978). iNaturalist records indicate very few observations of this genus, suggesting it is rarely encountered or understudied.
Cerambycidae Lamiinae Acanthocinini longhorn-beetles wood-boring-beetles Dillon-1956 North-America rarely-observed
Trichastylopsis albidus
Trichastylopsis albidus is a species of longhorn beetle in the family Cerambycidae, subfamily Lamiinae. It is the sole member of the monotypic genus Trichastylopsis. The species was described by John Lawrence LeConte in 1852. It is known from North America, with records from Mexico and the United States.
Cerambycidae Lamiinae Acanthocinini longhorn-beetle North-America monotypic-genus LeConte-1852
Trichocanonura linearis
Trichocanonura linearis is a species of longhorn beetle in the subfamily Lamiinae, and the sole member of its monotypic genus. It was described by Skinner in 1905 based on specimens from Mexico. The species is characterized by its elongated, linear body form typical of many lamiine cerambycids. It is distributed in Mexico and the southern United States.
longhorn-beetle Cerambycidae Lamiinae monotypic-genus Mexico United-States
Trichocnemis
Trichocnemis is a genus of longhorn beetles (Cerambycidae) in the subfamily Prioninae. The genus contains two species distributed in western North America: Trichocnemis pauper and Trichocnemis spiculatus (the ponderosus borer). Historically, species of Trichocnemis have often been treated as members of the genus Ergates, but modern taxonomic treatments separate them based on morphological differences including head size, mandible shape, and antennae length. The larvae of T. spiculatus are notable wood-borers in ponderosa pine and inspired improvements to chainsaw design.
Cerambycidae Prioninae wood-boring biomimicry ponderosa-pine western-North-America Ergates chainsaw-inspiration
Trichocnemis spiculatus neomexicanus
New Mexican ponderous borer
Trichocnemis spiculatus neomexicanus is a subspecies of the ponderous borer, a large prionine longhorn beetle native to western North America. The larvae are among the largest of any North American cerambycid, developing in dead or dying coniferous wood—particularly ponderosa pine. Adults are nocturnal and attracted to lights. This subspecies was described by Casey in 1890 and occurs in the southwestern United States and Mexico. The species has gained notoriety as the inspiration for modern chainsaw design, after Joe Cox observed the larva's opposable mandibles in action.
Cerambycidae Prioninae wood-borer biomimicry ponderosa-pine nocturnal light-attracted industrial-inspiration chainsaw coniferous-forest decomposer primary-decomposer large-larva opposable-mandibles New-Mexico Arizona southwestern-US Mexico Casey-1890 Ergatini longhorn-beetle coleoptera insect arthropod