Long-horned-beetle
Guides
Brachysomida nigripennis
Black-winged Long-horned Beetle
Brachysomida nigripennis is a long-horned beetle in the family Cerambycidae, subfamily Lepturinae. The species is characterized by its dark, nearly black elytra that distinguish it from congeners with more patterned or lighter coloration. It occurs across northern North America, with records from Canada and the northern United States. The genus Brachysomida contains several species that are often associated with coniferous and deciduous woodlands, where adults are frequently found on flowers or foliage.
Chrotoma
Chrotoma is a monotypic genus of long-horned beetles in the family Cerambycidae, established by Casey in 1891. The genus contains a single species, C. dunniana, distributed in the southwestern United States and northern Mexico. It belongs to the tribe Bothriospilini within the subfamily Cerambycinae. The genus is rarely encountered, with few documented observations.
Chrotoma dunniana
Chrotoma dunniana is a monotypic species of long-horned beetle in the family Cerambycidae. It is the sole member of the genus Chrotoma, which belongs to the tribe Bothriospilini within the subfamily Cerambycinae. The species occurs in the southwestern United States and northern Mexico. Information on its biology and ecology remains limited due to its rarity and restricted distribution.
Clytus planifrons
Clytus planifrons is a long-horned beetle in the family Cerambycidae, described by John Lawrence LeConte in 1874. The species occurs along the Pacific coast of North America, with records from California, Oregon, Washington, and British Columbia. As a member of the Clytini tribe, it belongs to a group of beetles often characterized by wasp-mimicking coloration and patterns.
Crossidius testaceus
Crossidius testaceus is a long-horned beetle in the family Cerambycidae. The species occurs in western North America and Central America. Like other members of its genus, it develops as larvae in living roots of perennial shrubs in the Asteraceae family. Two subspecies are recognized: C. t. testaceus and C. t. maculicollis.
Eburia haldemani
Ivory-marked Longhorn
Eburia haldemani is a long-horned beetle in the family Cerambycidae, distributed across Central and North America. It is frequently confused with the eastern Eburia quadrigeminata (ivory-marked beetle), but differs in lacking prominent spines at the elytral apex and having less elongated basal markings. Adults are attracted to ethanol and wine-baited traps, and larvae develop in dead or dying wood of Celtis reticulata (net-leaved hackberry) and related hosts. The species has been collected in Oklahoma, Texas, and adjacent regions, with adults active from late spring through late summer.
Elateropsis scabrosus
Elateropsis scabrosus is a species of long-horned beetle in the family Cerambycidae, described by Gahan in 1890. It belongs to the subfamily Prioninae and tribe Solenopterini. The species has been recorded from the Caribbean and North America, with specific distribution records from the Bahamas and Cuba. Relatively few observations exist in citizen science databases, suggesting it may be infrequently encountered or underreported.
Gnathacmaeops pratensis
Gnathacmaeops pratensis is a species of long-horned beetle in the subfamily Lepturinae. It has a broad Holarctic distribution spanning Europe, Asia, and North America. The adult beetle is known to feed on Norway spruce (Picea abies). Two varieties have been described: var. obscuripennis Pic, 1901 and var. suturalis (Mulsant, 1863).
Pilostenaspis lateralis
Pilostenaspis lateralis is a species of long-horned beetle in the family Cerambycidae, first described by LeConte in 1884. It belongs to the subfamily Cerambycinae and tribe Trachyderini. The species is native to the United States, with confirmed distribution records from US territory.
Prionus debilis
Prionus debilis is a long-horned beetle in the family Cerambycidae, occurring in the tallgrass prairies of the eastern Great Plains. Males possess hypersegmented, flabellate antennae adapted for detecting female sex pheromones. The species was first documented to be attracted to prionic acid lures in 2015, representing a significant finding for the genus. It is considered uncommonly collected and appears to have a relatively restricted distribution compared to other Prionus species.
Prionus emarginatus
Prionus emarginatus is a species of long-horned beetle in the family Cerambycidae, found in North America. It belongs to the subgenus Homaesthesis, one of eight species in this poorly known group primarily distributed in the Great Plains and Rocky Mountains. Adults are large, blackish beetles with broad pronota. Males are attracted to prionic acid lures, suggesting females emit this compound as a sex pheromone. The species is nocturnal, with males active at night and attracted to ultraviolet and mercury-vapor lights.
Prionus fissicornis
Prionus fissicornis is a long-horned beetle in the family Cerambycidae, distinguished as the sole member of the monotypic subgenus Prionus (Antennalia). It inhabits shortgrass prairie habitats in the Great Plains of North America. Adults are highly attracted to prionic acid lures, and emergence appears to be triggered by rainfall events. Unlike some congeners, adults do not appear to construct or occupy burrows.
Pronocera collaris
Pronocera collaris is a species of long-horned beetle in the family Cerambycidae, first described by Kirby in 1837. It is native to North America and belongs to the tribe Callidiini. The species includes two recognized subspecies: P. c. collaris and P. c. lecontei. Like other members of its tribe, it is likely associated with coniferous hosts, though specific ecological details remain poorly documented.
Ropalopus sanguinicollis
Ropalopus sanguinicollis is a species of long-horned beetle in the family Cerambycidae. It is found in the northeastern United States and southern Canada. The species belongs to the genus Ropalopus within the tribe Callidiini. Based on iNaturalist records, it has been documented in at least 34 observations.
Sarosesthes fulminans
Fulminating Long-horned Beetle
Sarosesthes fulminans is a North American long-horned beetle in the family Cerambycidae. It belongs to the tribe Clytini and has been recorded from Canada and the United States. The species has been collected using fermenting bait traps, a method commonly employed for cerambycid beetles. It is one of several desirable species targeted by collectors using this technique.
Stenodontes chevrolati
Chevrolat's tropical long-horned beetle
Stenodontes chevrolati is a species of long-horned beetle in the family Cerambycidae, subfamily Prioninae. It is one of the largest cerambycid species in North America, with males reaching substantial size. The species occurs in the Caribbean and southern North America, where adults are attracted to lights and have been documented in oak woodland habitats. Larval development occurs in living oak trees, with adults emerging after several years of subterranean feeding on roots.
Trichoferus
Trichoferus is a genus of long-horned beetles (Cerambycidae) established by Wollaston in 1854, containing at least 20 described species. Several species have become economically significant as invasive wood-boring pests, with Trichoferus campestris (velvet longhorned beetle) being particularly well-documented for its worldwide expansion through international trade. The genus includes both native and introduced species with documented associations with living trees, cut wood, and wood packaging material.