Cerambycinae
Guides
Smodicini
Smodicini is a tribe of longhorn beetles within the subfamily Cerambycinae, family Cerambycidae. The tribe comprises approximately 10 genera distributed across multiple continents, with the genus Smodicum being the most species-rich. Members are small to medium-sized cerambycids with somewhat flattened bodies. Many species exhibit cucujiform (flattened, elongate) body shapes reminiscent of cucujid beetles, a trait reflected in species epithets such as Smodicum cucujiforme.
Smodicum
Smodicum is a genus of longhorn beetles (family Cerambycidae) in the tribe Smodicini, subfamily Cerambycinae. The genus was established by Haldeman in 1847. Species in this genus are attracted to ethanol-based baits and have been documented in blacklight collections in riparian woodland habitats. One species, Smodicum cucujiforme, has been recorded from northwestern Oklahoma.
Smodicum pacificum
Smodicum pacificum is a species of longhorn beetle (family Cerambycidae) described by Linsley in 1934. It belongs to the tribe Smodicini within the subfamily Cerambycinae. The species has been recorded from North America and Middle America, with specific distribution including Mexico and the United States. Very few observations exist in public databases, suggesting it is rarely encountered or understudied.
Sphaenothecus cylindricollis
Sphaenothecus cylindricollis is a species of longhorn beetle in the family Cerambycidae, subfamily Cerambycinae, tribe Trachyderini. Described by Casey in 1924, this species belongs to a genus of trachyderine cerambycids distributed in North America. The genus Sphaenothecus contains species that are typically associated with flowering plants, where adults are often found feeding on pollen and nectar.
Sphaenothecus trilineatus
Sphaenothecus trilineatus is a longhorn beetle in the family Cerambycidae, described by Dupont in 1838. It belongs to the tribe Trachyderini, a group of often colorful and robust cerambycids. The species occurs in Central America, with records from Costa Rica, Guatemala, and Honduras. Little is known of its specific biology beyond general family characteristics.
Stenaspis
Stenaspis is a genus of longhorn beetles (family Cerambycidae) established by Audinet-Serville in 1834. The genus comprises seven recognized species distributed across North and Central America. Members are robust, medium-to-large cerambycids associated with woody vegetation, particularly leguminous trees and shrubs. Several species have been documented from Arizona and the southwestern United States, where they occur in desert scrub and oak woodland habitats.
Stenaspis verticalis arizonicus
Stenaspis verticalis arizonicus is a subspecies of longhorn beetle in the family Cerambycidae, subfamily Cerambycinae, tribe Trachyderini. It was described by Casey in 1912 and is known from the southwestern United States and Mexico. The subspecies is associated with desert scrub and woodland habitats, particularly in Arizona and adjacent regions. Adults have been observed on Baccharis sarothroides (desert broom), where mating pairs have been documented.
Stenhomalus
Stenhomalus is a genus of longhorn beetles (Cerambycidae) established by White in 1855. The genus belongs to the tribe Stenhomalini within the subfamily Cerambycinae. Species in this genus are characterized by their relatively small size and slender body form compared to many other cerambycids. The genus has been documented across multiple continents with records in Asia and Africa.
Stenhomalus taiwanus
Stenhomalus taiwanus is a species of longhorn beetle in the family Cerambycidae, described by Matsushita in 1933. The species is native to East Asia and has been recorded from Taiwan, Japan, South Korea, and mainland China. It belongs to the tribe Stenhomalini, a group of small to medium-sized cerambycine beetles. The specific epithet refers to Taiwan, where the species was first described.
Stenosphenus debilis
Stenosphenus debilis is a species of longhorned beetle in the family Cerambycidae, described by Horn in 1885. The genus Stenosphenus contains multiple species distributed across North America, with related species such as S. notatus being relatively common in the eastern United States. Specific biological details for S. debilis remain poorly documented in available literature.
Stenosphenus sobrius
Stenosphenus sobrius is a species of longhorned beetle in the family Cerambycidae, described by Newman in 1840. Adults have been observed on fresh wind-thrown branches of palo verde (Cercidium floridum) in the San Lucan xeric scrub of Baja California Sur, Mexico. The species appears to be associated with woody legume hosts and has a distribution spanning Middle America and North America.
Stizocera
Stizocera is a genus of longhorn beetles in the family Cerambycidae, tribe Elaphidiini. The genus was established by Audinet-Serville in 1834. Members of this genus are found in the Neotropical region, with confirmed records from Colombia.
Stromatium unicolor
Stromatium unicolor is a species of longhorn beetle in the family Cerambycidae, currently treated as a synonym of Stromatium auratum. The species was described by Olivier in 1800. Records indicate occurrence in Brazil (Rio de Janeiro, São Paulo, Amazonas) and Albania, though the taxonomic status and distribution require verification given its synonymy with S. auratum.
Styloxus bicolor
Red-necked Juniper Borer
Styloxus bicolor is a longhorn beetle (family Cerambycidae) native to western North America. It was described by Champlain and Knull in 1922. The species is commonly known as the Red-necked Juniper Borer and has been documented as a specialist on juniper hosts, particularly Juniperus monosperma. Its life history has been studied in northern Arizona, where it develops as a wood-borer in living juniper trees.
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.
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.
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.
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.
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.
Tilloclytus geminatus
Tilloclytus geminatus is a small longhorn beetle (Cerambycidae) described by Haldeman in 1847. Adults exhibit effective Batesian ant mimicry, with anterior oblique markings creating the illusion of a constricted "waist" and posterior transverse markings resembling the sheen of a shiny abdomen. The species has been reared from various deciduous hardwoods and has been recorded sporadically across the eastern United States. It is considered infrequently encountered, likely due in part to being overlooked because of its ant-like appearance.
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.
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.
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).
Triodoclytus lanifer
Triodoclytus lanifer is a species of longhorn beetle (Cerambycidae) in the tribe Clytini. It was originally described as Clytus lanifer by John Lawrence LeConte in 1873 and later transferred to Triodoclytus. The genus Triodoclytus contains small to medium-sized cerambycine beetles with distinctive antennal and elytral characteristics. Records indicate presence in the United States, though detailed biological information remains limited.
Tylonotus bimaculatus
Ash and Privet Borer
Tylonotus bimaculatus is a longhorn beetle (Cerambycidae) described by Haldeman in 1847. Commonly known as the Ash and Privet Borer, this species is documented across North America with over 1,000 iNaturalist observations. As a member of the subfamily Cerambycinae and tribe Hesperophanini, it belongs to a group of wood-boring beetles whose larvae typically develop in hardwood trees.
Vandykea tuberculata
Serpentine Cypress Long-horned Beetle
Vandykea tuberculata is a species of longhorn beetle (family Cerambycidae) and the sole representative of its genus. It was described by Linsley in 1932 and is known from serpentine cypress habitats in western North America. The species is classified in the subfamily Cerambycinae and tribe Oemini.
Xylocrius agassizi
Gooseberry Root Borer
Xylocrius agassizi is a species of longhorn beetle in the family Cerambycidae, first described by Hatch in 1971. It is currently treated as a synonym of Xylocrius agassizii in some taxonomic databases, though the original spelling agassizi is also in use. The species is known from western North America, with records from British Columbia, Canada and the United States. Its common name, Gooseberry Root Borer, suggests an association with Ribes (gooseberry/currant) plants as hosts.
Xylotrechus
tiger longhorned beetles
Xylotrechus is a genus of longhorned beetles in the family Cerambycidae containing approximately 200 described species. Members of this genus are characterized by their elongated bodies, long antennae, and often striking color patterns. The genus includes economically significant species such as Xylotrechus chinensis (tiger longhorned beetle), which is a pest of mulberry and other fruit trees, and Xylotrechus pyrrhoderus, a grapevine borer. Several species have been documented as attracted to fermenting baits, making them accessible to collectors using molasses-beer or wine traps.
Xylotrechus aceris
Gallmaking Maple Borer
Xylotrechus aceris is a species of longhorn beetle in the family Cerambycidae, described by Fisher in 1917. It is commonly known as the Gallmaking Maple Borer, indicating a likely association with maple trees (Acer spp.). The species occurs in North America, with records from Canada including Ontario and Québec. Like other members of the genus Xylotrechus, it belongs to the tribe Clytini, which contains many wood-boring beetles.
Xylotrechus albonotatus
Xylotrechus albonotatus is a species of longhorn beetle in the family Cerambycidae, described by Thomas Lincoln Casey Jr. in 1912. It belongs to the genus Xylotrechus, a diverse group of wood-boring beetles commonly known as tiger beetles or wasp beetles due to their frequent yellow and black coloration. The specific epithet "albonotatus" refers to white markings, suggesting distinctive pale patterning on the elytra or pronotum. Like other members of the tribe Clytini, adults are likely diurnal and active on host tree trunks.
Xylotrechus annosus annosus
Xylotrechus annosus annosus is a subspecies of longhorn beetle in the family Cerambycidae, tribe Clytini. The species is currently treated as a synonym in modern taxonomy, with Xylotrechus annosus (Say, 1827) representing the valid species. Members of this genus are wood-boring beetles typically associated with dead or dying hardwood trees. The nominate subspecies was described by Thomas Say in 1827 based on North American specimens.
Xylotrechus colonus
rustic borer, rustic borer beetle
A medium-sized longhorn beetle in the tribe Clytini, known for its distinctive black elytra with variable grey bands and a sinuous yellow mark near the base. The species was described by Fabricius in 1775 and is common in eastern North American woodlands. Larvae are wood-borers in oak sapwood, while adults feed on nectar of composite flowers including goldenrod.
Xylotrechus insignis
Willow Borer
Xylotrechus insignis is a species of longhorn beetle in the family Cerambycidae, described by John Lawrence LeConte in 1873. Commonly known as the Willow Borer, this beetle is recognized for its wood-boring larvae that tunnel into willow trees and related hosts, potentially causing significant damage or tree mortality. Adults measure 12–16 mm in length. The species is native to North America, with records from the United States and Mexico.
Xylotrechus lengi
Xylotrechus lengi is a species of longhorn beetle in the family Cerambycidae, described by Schaeffer in 1908. It belongs to the tribe Clytini, a group known for wood-boring larvae. The species is native to western North America, with records from British Columbia and the western United States. Very little is documented about its biology or ecology.
Xylotrechus nitidus
Xylotrechus nitidus is a species of longhorned beetle in the family Cerambycidae, first described by George Henry Horn in 1860. It belongs to the tribe Clytini, a group commonly known as the "round-necked longhorns." The species epithet "nitidus" (Latin for "shining" or "polished") likely refers to the beetle's glossy appearance. This species is part of a large and diverse genus containing over 200 species worldwide, many of which are wood-boring beetles associated with various hardwood trees.
Xylotrechus obliteratus
Xylotrechus obliteratus is a longhorned beetle in the family Cerambycidae, described by John Lawrence LeConte in 1873. It belongs to the tribe Clytini, a group of wood-boring beetles often characterized by patterned or banded elytra. The species name 'obliteratus' (meaning 'obliterated' or 'erased') likely refers to reduced or indistinct markings compared to congeners. Like other members of the genus Xylotrechus, this species is associated with woody plants, though specific host records are limited in the available literature.
Xylotrechus quadrimaculatus
birch and beech girdler
Xylotrechus quadrimaculatus is a longhorn beetle in the family Cerambycidae, described by Haldeman in 1847. It is commonly known as the birch and beech girdler, indicating its association with these host trees. The species occurs in eastern North America, with documented records from Canada and the United States.
Xylotrechus sagittatus chiricahuae
Xylotrechus sagittatus chiricahuae is a subspecies of longhorned beetle in the family Cerambycidae, described by Chemsak in 1959. As a member of the tribe Clytini, it belongs to a group of wood-boring beetles commonly known as typical longhorns. The subspecies epithet "chiricahuae" refers to the Chiricahua region, suggesting a southwestern North American distribution. Like other members of its genus, this beetle is associated with pine trees and develops in dead or dying wood.
Xylotrechus schaefferi
Xylotrechus schaefferi is a species of longhorn beetle in the family Cerambycidae, described by Schott in 1925. It belongs to the tribe Clytini within the subfamily Cerambycinae. The species is known from multiple Canadian provinces including Manitoba, Ontario, and Québec. Like other members of its genus, it is likely associated with woody vegetation, though specific biological details remain poorly documented in the available literature.
Zagymnus
Zagymnus is a genus of longhorn beetles in the family Cerambycidae, placed in the tribe Agallissini. The genus was established by LeConte in 1873. Species in this genus are found in North America, particularly in the southern United States and Mexico. As members of the Cerambycinae subfamily, they are classified among the round-necked longhorn beetles.