Cerambycinae
Guides
Paranoplium gracile gracile
Paranoplium gracile gracile is a subspecies of longhorn beetle in the family Cerambycidae, tribe Oemini. Originally described by LeConte in 1881, it is currently treated as a synonym in modern taxonomic databases. The species is known from North America, with records from the United States. As a cerambycid, it belongs to a diverse family of wood-boring beetles, though specific biological details for this subspecies remain poorly documented.
Parelaphidion
Parelaphidion is a genus of longhorned beetles in the family Cerambycidae, subfamily Cerambycinae, and tribe Elaphidiini. The genus was established by Skiles in 1985 and contains two recognized species: Parelaphidion aspersum (Haldeman, 1847) and Parelaphidion incertum (Newman, 1840). Members of this genus have been documented in fermenting bait trap studies in the central United States, where they are attracted to both molasses/beer and red wine baits. The genus belongs to the diverse elaphidiine group, which is characterized by larvae that typically develop in dead or decaying wood.
Parelaphidion aspersum
Parelaphidion aspersum is a species of longhorned beetle in the family Cerambycidae, described by Haldeman in 1847. It belongs to the tribe Elaphidiini and is known to occur in North America. The species has been documented in Canada (Ontario and Québec) and the United States. It has been collected using fermenting bait traps, with 26 specimens recorded in a 2015 Missouri study using molasses/beer and red wine baits.
Parelaphidion incertum
Parelaphidion incertum is a species of longhorned beetle in the family Cerambycidae, described by Newman in 1840. It belongs to the tribe Elaphidiini, a diverse group of cerambycine beetles. The species is known from North America, with records from both Canada and the United States. Information regarding its biology, host associations, and detailed distribution remains limited in the available literature.
Penichroa fasciata
Penichroa fasciata is a species of longhorn beetle in the family Cerambycidae, subfamily Cerambycinae, and tribe Graciliini. It was described by Stephens in 1831. The species has a broad distribution spanning Europe and northern Asia (excluding China) as well as North America, though specific details of its biology and ecology remain poorly documented in the available literature.
Perarthrus vittatus
Perarthrus vittatus is a species of longhorn beetle (family Cerambycidae) described by John Lawrence LeConte in 1851. It belongs to the tribe Trachyderini, a group of robust, often conspicuously patterned cerambycids. The species is known from Middle America and North America, with records from Mexico and the United States. Limited biological information is available for this species.
Perigracilia delicata
Perigracilia delicata is a species of longhorn beetle (Cerambycidae) described by Knull in 1942. It belongs to the tribe Graciliini, a group characterized by generally slender body forms. The genus Perigracilia is a small taxon within the cerambycid subfamily Cerambycinae. Published information on this species is extremely limited, with records restricted to basic taxonomic documentation.
Phoracantha
Eucalyptus Longhorn Beetles
Phoracantha is a genus of longhorn beetles (Cerambycidae) comprising approximately 40 species, native to Australia and New Guinea. The genus was revised by Wang (1995), who synonymized Tryphocaria with Phoracantha and described nine new species. Species in this genus are primarily associated with Eucalyptus trees, with several species—particularly P. semipunctata and P. recurva—having achieved global distribution as invasive pests following introduction to regions where eucalypts have been planted. These beetles colonize the phloem of host trees and can cause significant mortality, especially during drought conditions when tree defenses are compromised.
Phoracanthini
Phoracanthini is a tribe of longhorn beetles in the subfamily Cerambycinae, containing twelve recognized genera distributed primarily across the Australasian, Oriental, and Indo-Pacific regions. The tribe includes economically significant genera such as Phoracantha, known for their association with Eucalyptus trees. Member genera exhibit substantial diversity in body form and elytral patterning, with many species displaying distinctive spotted or banded coloration.
Phymatodes aereus
Phymatodes aereus is a species of longhorn beetle in the family Cerambycidae, first described by Newman in 1838. It occurs in eastern North America, with records from Canada (New Brunswick, Ontario, Québec) and the United States. The species belongs to the genus Phymatodes, which is most diverse in western North America but includes several eastern representatives. Like other members of the tribe Callidiini, adults are typically associated with dead or dying woody vegetation.
Phymatodes amoenus
Grapevine Phymatodes
Phymatodes amoenus is a small to medium-sized longhorn beetle (family Cerambycidae) found in North America. The species is commonly known as the grapevine phymatodes due to its exclusive association with grape vines (Vitis spp.). Adults are typically found on dead grape vines, where they may occur alongside predatory checkered beetles (Cleridae) that prey upon their larvae. The species was first described by Thomas Say in 1824.
Phymatodes decussatus
Phymatodes decussatus is a species of longhorn beetle (Cerambycidae) originally described by LeConte in 1857. The species has undergone significant nomenclatural revision: the name P. decussatus was historically misapplied to a common oak-associated species now correctly called P. obliquus, while the true P. decussatus was previously known as P. juglandis. The species is associated with walnut (Juglans) rather than oak. A single subspecies, P. decussatus posticus, occurs in western North America and Mexico.
Phymatodes hirtellus
Phymatodes hirtellus is a species of longhorn beetle (family Cerambycidae) in the subfamily Cerambycinae, tribe Callidiini. The species was described by LeConte in 1873 and occurs in western North America, with records from British Columbia, California, and Mexico (including Baja California). A previously recognized subspecies, Phymatodes hirtellus densipennis, has been synonymized under the nominate form based on nomenclatural revisions by Swift & Ray (2010). The genus Phymatodes is most diverse in western North America and includes species associated with various woody host plants.
Phymatodes huetheri
Phymatodes huetheri is a species of longhorned beetle (family Cerambycidae) described in 2019 by Wappes and Santos-Silva. It belongs to the genus Phymatodes, a group of woodboring beetles most diverse in western North America. The species was recently described and appears to have limited published biological information available.
Phymatodes infuscatus
Phymatodes infuscatus is a species of longhorn beetle in the family Cerambycidae. It is one of 26 currently recognized species in the genus Phymatodes in North America. The genus is most diverse in western North America, and P. infuscatus is among the species that remains poorly represented in collections. The species was described by LeConte in 1859.
Phymatodes lengi
Phymatodes lengi is a species of longhorn beetle in the family Cerambycidae, described by Joutel in 1911. It is a member of the genus Phymatodes, which is most diverse in the western United States and Canada. The species is found in the United States, though specific details about its biology and ecology remain poorly documented. It is one of 26 species currently recognized in the genus in North America.
Phymatodes maculicollis
Phymatodes maculicollis is a species of longhorn beetle in the family Cerambycidae, described by LeConte in 1878. The species belongs to the genus Phymatodes, which is most diverse in western North America and contains approximately 26 recognized species on the continent. Like other members of its genus, P. maculicollis is associated with woody host plants, though specific host associations for this species remain poorly documented. The species has been recorded across a broad geographic range in North America, from western Canada through the western United States.
Phymatodes testaceus
tanbark borer, violet tanbark beetle
Phymatodes testaceus is a transpalearctic polymorphic longhorn beetle in the subfamily Cerambycinae. Adults range from 6–16 mm in length. The species exhibits significant color variation, with some individuals showing violet or metallic reflections that contribute to the common name 'violet tanbark beetle.'
Phymatodes vilitatis
Phymatodes vilitatis is a species of longhorn beetle in the family Cerambycidae, first described by Linsley in 1940. It is distributed in the United States. The genus Phymatodes is part of the tribe Callidiini within the subfamily Cerambycinae. Like other members of this genus, it is associated with woody plants, though specific host relationships for this species remain poorly documented.
Physocnemum
elm bark borer
Physocnemum is a small genus of longhorned beetles (family Cerambycidae) containing three described species found in North America. The genus is characterized by ant- and wasp-mimicking appearance, with dark bodies, small amounts of red coloration, and polished ivory-colored ridges at mid-elytra that create the illusion of a narrow waist. The most well-known species, P. brevilineum (elm bark borer), develops in the bark of living elm trees and has been documented as an occasional pest causing injury to inner bark and cambium. Other species include P. andreae (cypress bark borer) and P. violaceipenne.
Physocnemum andreae
Cypress Bark Borer
Physocnemum andreae, commonly known as the cypress bark borer, is a longhorned beetle in the family Cerambycidae. Native to eastern North America, the species is classified as uncommon. Adults are associated with cypress trees, as indicated by both its common name and the ecological patterns observed in related species within the genus. The species was first described by Haldeman in 1847.
Physocnemum brevilineum
Elm Bark Borer
A small, wasp-mimicking longhorned beetle commonly known as the elm bark borer. Adults are dark with reddish accents and possess polished ivory-colored longitudinal ridges at mid-elytra that create the illusion of a narrow wasp waist. The species is considered uncommon despite having a common name and documented pest status. Larvae typically mine within the bark of living elm trees but have been observed in recently dead trees as well, occasionally causing injury to inner bark and cambium.
Physocnemum violaceipenne
Physocnemum violaceipenne is a species of longhorned beetle in the family Cerambycidae, subfamily Cerambycinae, and tribe Callidiini. The species was described by Hamilton in 1896. It belongs to a genus whose members are known for ant- or wasp-mimicking appearance and behavior, though specific details for this particular species remain poorly documented in the available literature. The genus name Physocnemum refers to the swollen or enlarged scape of the antennae characteristic of these beetles.
Piezocera monochroa
Piezocera monochroa is a species of longhorn beetle (family Cerambycidae) described by Henry Walter Bates in 1885. It belongs to the tribe Piezocerini within the subfamily Cerambycinae. The species is known from limited records in Central America, with distribution confirmed in Costa Rica, Guatemala, and Honduras.
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.
Plectromerini
Plectromerini is a monotypic tribe of longhorn beetles (Cerambycidae) within the subfamily Cerambycinae. The tribe contains only the genus Plectromerus, which comprises several species of wood-boring beetles. These beetles are characterized by their elongated bodies and antennae typical of the Cerambycidae family.
Plectromerus dentipes
tooth-footed bycid
Plectromerus dentipes is a species of longhorn beetle (Cerambycidae) first described by Olivier in 1790. It is commonly known as the tooth-footed bycid. The species occurs across North America, the Caribbean, and the Bahamas. As a member of the subfamily Cerambycinae and tribe Plectromerini, it represents a typical cerambycid lineage within the diverse longhorn beetle fauna of the region.
Plesioclytus
Plesioclytus is a genus of longhorn beetles in the family Cerambycidae, established by Giesbert in 1993. The genus is monotypic, containing only Plesioclytus relictus. It belongs to the tribe Plesioclytini, which was erected to accommodate this genus. The genus is classified within the subfamily Cerambycinae.
Plesioclytus relictus
Plesioclytus relictus is a species of longhorn beetle in the family Cerambycidae, first described by Giesbert in 1993. The species name 'relictus' suggests a relictual distribution, though specific details about its biology remain poorly documented. It belongs to the tribe Plesioclytini within the subfamily Cerambycinae.
Plinthocoelium suaveolens plicatum
Bumelia Borer
Plinthocoelium suaveolens plicatum is the western subspecies of a striking longhorned beetle distributed from Texas west to New Mexico, Arizona, and northern Mexico. Distinguished from the nominate eastern subspecies by bronze or cupreous tints and weak transverse rugae on the pronotum, this beetle exhibits brilliant iridescent green coloration with contrasting orange and black legs. Larvae develop in the roots of living Sideroxylon lanuginosum (gum bumelia), with adults active during summer months. The subspecies intergrades with P. s. suaveolens in northeastern Texas.
Pronocera collaris collaris
Pronocera collaris collaris is a subspecies of longhorn beetle (Cerambycidae) in the tribe Callidiini. It is currently considered a synonym of Pronocera collaris. The species is native to North America, with records from Canada and the United States. As a member of the Cerambycinae subfamily, it belongs to a diverse group of wood-boring beetles, though specific biological details for this subspecies remain poorly documented.
Pronocera collaris lecontei
A subspecies of longhorn beetle in the family Cerambycidae, originally described by Chemsak in 1963. It belongs to the tribe Callidiini within the subfamily Cerambycinae. The subspecies epithet 'lecontei' honors the prominent American entomologist John Lawrence LeConte.
Psebiini
Psebiini is a tribe of longhorn beetles in the subfamily Cerambycinae. The tribe comprises approximately 25 genera distributed across multiple continents, with notable diversity in the Afrotropical, Oriental, and Australasian regions. Several genera were described or revised in the 21st century, indicating ongoing taxonomic refinement. The tribe includes both small-bodied genera such as Nathrius and larger forms such as Macropsebium.
Pseudomethia arida
Pseudomethia arida is a species of longhorn beetle in the family Cerambycidae. It is the sole member of its genus, Pseudomethia. The species was described by Linsley in 1937 and is found in arid regions of the southwestern United States and northwestern Mexico.
Pseudopilema
Pseudopilema is a monotypic genus of longhorn beetles (Cerambycidae) containing a single species, Pseudopilema hoppingi. The genus was established by Linsley in 1940, with the sole species described earlier by Van Dyke in 1920. It belongs to the tribe Hyboderini within the subfamily Cerambycinae.
Psyrassa unicolor
Branch Pruner Beetle
Psyrassa unicolor is a species of longhorn beetle (Cerambycidae) native to North America. It is commonly known as the Branch Pruner Beetle. The species was first described by Randall in 1838 under the basionym Stenocorus unicolor. GBIF records indicate its presence in Canada (New Brunswick, Nova Scotia, Ontario) and Colombia (Barrancabermeja), though the South American record may require verification.
Purpuricenus dimidiatus
Scrub Oak Borer
Purpuricenus dimidiatus is a species of longhorned beetle in the family Cerambycidae, described by John Lawrence LeConte in 1884. The species is commonly known as the Scrub Oak Borer. Like other members of the genus Purpuricenus, it is a large, showy beetle that has been documented in North America. The genus is notable for containing species that are attracted to fermenting bait traps, though specific trapping records for P. dimidiatus are not detailed in the available sources.
Purpuricenus linsleyi
Purpuricenus linsleyi is a rare longhorned beetle species in the family Cerambycidae, described by John Chemsak in 1961. The species was originally known only from the holotype and one paratype from Texas, and was later rediscovered in the Texas hill country by Dan Heffern. It belongs to a genus of large, showy beetles with velvety black bodies and vivid red or orange elytral markings. The species can be confused with P. humeralis due to similar elytral patterning, but differs in having the posterior margin of the basal elytral markings more or less transverse rather than distinctly oblique.
Purpuricenus opacus
Purpuricenus opacus is a species of longhorned beetle in the family Cerambycidae, described by Knull in 1937. It is considered a west Texas specialty that has been recently documented from oak in the Lincoln National Forest of Eddy County, New Mexico, expanding its known range beyond Texas. The species is associated with oak woodlands in pinyon/oak/juniper habitats.
Rhinotragini
Rhinotragini is a tribe of longhorn beetles within the subfamily Cerambycinae, characterized by diverse genera distributed primarily in the Neotropical region. The tribe includes numerous genera with species showing striking wasp-like mimicry and associations with flowers. Taxonomic revisions have described multiple new genera and species, particularly from Bolivia, with ongoing work clarifying generic boundaries and species limits. Members range from small to medium-sized beetles, often with vivid coloration and elongated bodies.
Rhodoleptus
Rhodoleptus is a genus of longhorn beetles in the family Cerambycidae, subfamily Cerambycinae, and tribe Trachyderini. The genus was established by Linsley in 1962 and currently contains four described species distributed in North America. Members of this genus are part of the diverse Trachyderina subtribe, which includes many colorful and patterned cerambycine beetles.
Rhodoleptus femoratus
Rhodoleptus femoratus is a species of longhorn beetle in the family Cerambycidae, described by Schaeffer in 1909. It belongs to the tribe Trachyderini, a group of robust, often brightly colored cerambycids. The genus Rhodoleptus is small and primarily distributed in North America. This species is rarely encountered in entomological literature and appears to have limited published biological information.
Rhopalophora longipes
Eastern Rhopalophora
Rhopalophora longipes is a small, diurnal longhorned beetle and the only eastern North American representative of the tribe Rhopalophorini. The species exhibits the characteristic black body with red head and/or pronotum coloration typical of this tribe. Adults are frequently observed on flowers during daylight hours. The species was first described by Thomas Say in 1824.
Rhopalophora meeskei
Rhopalophora meeskei is a longhorn beetle in the family Cerambycidae, described by Casey in 1891. The species has been documented in the southwestern United States and Mexico, with confirmed records from Arizona and observations in Guatemala and Honduras. Field observations indicate adults are active during summer months and are associated with flowering plants, particularly milkweeds (Asclepias spp.) and Ceanothus species.
Rhopalophora prorubra
Rhopalophora prorubra is a species of longhorn beetle in the family Cerambycidae, described by Knull in 1944. It belongs to the tribe Rhopalophorini, a group characterized by club-shaped legs and frequent black-and-red coloration patterns. The species occurs in North America and Mexico. Like other members of its tribe, it is likely diurnal and associated with flowers, though specific behavioral observations for this species remain unrecorded.
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.
Rosalia
Rosalia longicorn, Alpine longhorn beetle
Rosalia is a genus of longhorn beetles (Cerambycidae) established by Audinet-Serville in 1833. The genus includes the iconic Rosalia alpina, known as the Rosalia longicorn or Alpine longhorn beetle, a large and strikingly colored species protected under the European Union Habitats Directive. Members of this genus are associated with beech forests and have experienced significant range contractions across Europe due to habitat loss and forest management practices. The genus is characterized by elongated bodies, long antennae, and often distinctive coloration including blue-gray tones with black spots.
Sarosesthes
Sarosesthes is a monotypic genus of longhorn beetles (family Cerambycidae) containing a single described species, Sarosesthes fulminans. The genus is classified within the tribe Clytini, a group known for wood-boring larvae and often striking adult coloration. The sole species has been documented in eastern North America, where adults have been collected using fermenting bait traps and ultraviolet light traps.
Schizax
Schizax is a genus of longhorn beetles (Cerambycidae) established by LeConte in 1873. It is monotypic, containing only the single species Schizax senex. The genus is placed in the subfamily Cerambycinae and tribe Trachyderini.
Schizax senex
Schizax senex is a species of longhorn beetle (Cerambycidae) and the sole member of the monotypic genus Schizax. The species was described by John Lawrence LeConte in 1873. It belongs to the tribe Trachyderini within the subfamily Cerambycinae. Based on distribution records, it occurs in the United States.