Cerambycidae
Guides
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.
Psenocerus
Psenocerus is a genus of longhorned beetles in the family Cerambycidae, subfamily Lamiinae. The genus is monotypic, containing only the species Psenocerus supernotatus, described by Thomas Say in 1823. Commonly known as the Currant-tip Borer, this small beetle exhibits remarkable ant mimicry, with adults measuring approximately 4 millimeters in length. The genus was established by LeConte in 1852.
Pseudastylopsis
Pseudastylopsis is a genus of longhorn beetles in the subfamily Lamiinae, established by Dillon in 1956. The genus contains four described species distributed in North America. Members are classified in the tribe Acanthocinini, a diverse group of primarily wood-feeding cerambycids. Species are associated with coniferous hosts, particularly pines.
Pseudastylopsis nebulosus
Pseudastylopsis nebulosus is a longhorn beetle species in the family Cerambycidae, described by George Henry Horn in 1880. It belongs to the subfamily Lamiinae (flat-faced longhorns) and tribe Acanthocinini. The species is known from North America, with records from the United States. Like other members of its genus, it is a wood-boring beetle with larvae that develop in dead or dying wood.
Pseudastylopsis nelsoni
Pseudastylopsis nelsoni is a species of longhorn beetle (Cerambycidae) in the subfamily Lamiinae. It was described by Linsley and Chemsak in 1995. The species belongs to the tribe Acanthocinini, a diverse group of flat-faced longhorn beetles. Very little is known about its biology or distribution beyond basic taxonomic records.
Pseudastylopsis pini
Pseudastylopsis pini is a species of longhorned beetle in the family Cerambycidae, described by Schaeffer in 1905. It belongs to the subfamily Lamiinae and tribe Acanthocinini. The species has been recorded in North and Middle America, with documented presence in Mexico and the United States. Like other members of its genus, it is associated with coniferous hosts.
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.
Pseudostrangalia
Pseudostrangalia is a monotypic genus of longhorn beetles (Cerambycidae) in the subfamily Lepturinae. The genus contains a single described species, Pseudostrangalia cruentata. It was established by Swaine and Hopping in 1928. Members of this genus are classified within the tribe Lepturini, a group commonly known as flower longhorns due to their frequent association with flowers as adults.
Pseudostrangalia cruentata
Pseudostrangalia cruentata is a species of longhorn beetle (Cerambycidae) native to eastern North America. It belongs to the subfamily Lepturinae, a group commonly known as flower longhorns due to their frequent association with flowers. The species was first described by Haldeman in 1847 and has been documented in the Canadian provinces of Ontario and Québec.
Psyrassa
Psyrassa is a genus of longhorn beetles (Cerambycidae) in the tribe Elaphidiini. Species in this genus are small to medium-sized cerambycids with elongated bodies. The genus was established by Francis Pascoe in 1866 and is distributed in the Americas. Members are attracted to fermented bait traps, suggesting adult feeding on sugary or fermenting substances.
Psyrassa pertenuis
Psyrassa pertenuis is a species of longhorn beetle in the family Cerambycidae, tribe Elaphidiini. It was described by Casey in 1924. The species has been documented in North America, particularly in the southwestern United States. It is one of many Psyrassa species, a genus of small to medium-sized cerambycids typically associated with woody vegetation.
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.
Pteropliini
Pteropliini is a tribe of longhorn beetles within the subfamily Lamiinae (Cerambycidae). Members of this tribe are characterized by their elongated antennae and typically robust body forms typical of flat-faced longhorns. The tribe contains multiple genera distributed across tropical and subtropical regions, with some species extending into temperate zones.
Purpuricenus
Purplescent Longhorn Beetles
Purpuricenus is a genus of longhorn beetles (Cerambycidae) comprising approximately 50 species distributed across the Northern Hemisphere. North American species are large, showy beetles with velvety black bodies and vivid red or orange basal elytral markings. The genus has been extensively studied due to its attractiveness to fermenting bait traps, a collecting method that has revealed cryptic species diversity and clarified host associations. The 2000 revision by MacRae resolved taxonomic confusion in eastern North America by distinguishing P. paraxillaris from the similar P. axillaris based on morphological and ecological differences.
Purpuricenus axillaris
White Oak Branch Girdler
Purpuricenus axillaris is a large, showy longhorned beetle in the family Cerambycidae, described by Haldeman in 1847. It is one of three eastern North American species in the genus Purpuricenus, distinguished by transverse basal elytral markings that cover the entire basal half of the elytra in yellow to orange coloration. The species is strongly attracted to fermenting bait traps and has been documented in association with hickory (Carya) as its larval host. It was historically confused with the similar but distinct P. paraxillaris, which was described as a new species in 2000.
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.
Purpuricenus paraxillaris
White Oak Branch Girdler
Purpuricenus paraxillaris is a large, showy longhorned beetle (family Cerambycidae) described by Ted C. MacRae in 2000 from specimens collected in Missouri. It was the first new species discovered by the author using fermenting bait traps. The species closely resembles P. axillaris but is larger and more robust, with reddish rather than pale orange elytral markings, more developed pronotal tubercles with polished apical lines, and distinctly dentate elytral apices. It is attracted to fermenting baits and has been documented across the eastern United States.
Pygoleptura brevicornis
flower longhorn beetle
Pygoleptura brevicornis is a species of flower longhorn beetle in the family Cerambycidae. It was described by LeConte in 1873 and is native to North America. The species belongs to the subfamily Lepturinae, a group commonly known as flower longhorns due to their frequent presence on flowers where they feed on pollen and nectar. Information on this species is limited in the available literature.
Pygoleptura nigrella
flower longhorn beetle
Pygoleptura nigrella is a species of flower longhorn beetle in the family Cerambycidae. The species is native to North America and includes two recognized subspecies: the nominate P. n. nigrella and P. n. oregonensis. As a member of the subfamily Lepturinae, it is associated with flowers where adults are typically observed feeding on pollen and nectar. The species was originally described by Thomas Say in 1826 under the genus Anoplodera.
Rhagium
flower longhorn beetles, ribbed pine borers
Rhagium is a genus of flower longhorn beetles in the subfamily Lepturinae, family Cerambycidae. The genus contains approximately 25 described species distributed across the Holarctic region, with notable species including the widespread Rhagium inquisitor (ribbed pine borer) and Rhagium mordax. Species in this genus exhibit distinctive morphological features including relatively short antennae compared to other cerambycids, often with ribbed or sculptured elytra. The genus is notable for containing the only North American cerambycid known to overwinter as adults (R. inquisitor).
Rhagium inquisitor
Ribbed Pine Borer
Rhagium inquisitor, commonly known as the ribbed pine borer, is a medium-sized longhorn beetle distinguished by its unusual morphology and unique life history. Unlike most cerambycids, adults have short antennae and a 'big-shouldered' build with heavily ribbed elytra. The species is notable for being one of the few North American cerambycids to overwinter as adults rather than larvae, and for pupating directly beneath bark rather than in the sapwood. It has a broad Holarctic distribution spanning North America, Europe, and Asia.
Rhamnusiini
Enoploderini
Rhamnusiini is a tribe of longhorn beetles (Cerambycidae) within the subfamily Lepturinae. The tribe was formerly known under the synonym Enoploderini. Members are classified within the diverse lepturine beetle lineage, which contains approximately 150 genera worldwide and is most diverse in the Northern Hemisphere.
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 angustata
Narrow-necked Rhopalophora
Rhopalophora angustata is a species of longhorned beetle in the family Cerambycidae, described by Schaeffer in 1905. It belongs to the tribe Rhopalophorini, a group of slender, diurnal beetles frequently found on flowers and exhibiting group mimicry resembling small wasps. The species occurs in southwestern North America and Mexico.
Rhopalophora cupricollis
Rhopalophora cupricollis is a species of longhorn beetle in the tribe Rhopalophorini, described by Guérin-Méneville in 1844. Members of this tribe are characterized by distinctly club-shaped legs and frequently exhibit black bodies with red or coppery pronota. The species is part of a group mimicry complex where multiple related species share a general resemblance to small, flower-visiting wasps.
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
Ropalopus is a genus of long-horned beetles (Cerambycidae: Callidiini) comprising approximately 20 species distributed across Eurasia, with one species (R. sanguinicollis) occurring in northeastern North America. The genus has been subject to taxonomic revision, particularly the R. ungaricus/insubricus species group in the western Palaearctic, where elevation has been identified as a key factor in species delimitation alongside geographic barriers.
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.
Rosalia funebris
Banded Alder Borer
Rosalia funebris, commonly known as the Banded Alder Borer, is a striking longhorn beetle in the family Cerambycidae. It is notable for its bold black-and-white coloration and elongated body form. Adults are active in spring and summer and are frequently observed on the bark of hardwood trees, particularly alders. The species is native to western North America, ranging from Alaska to California and New Mexico. Unlike many wood-boring beetles, it is not considered a significant pest as it generally lays eggs in downed rather than living trees.
Sachalinobia rugipennis
flower longhorn beetle
Sachalinobia rugipennis is a species of flower longhorn beetle in the family Cerambycidae. It was first described by Newman in 1844 under the basionym Evodinus rugipennis. The species is distributed across eastern and central Canada.
Sachalinobiini
Sachalinobiini is a small tribe of longhorn beetles (Cerambycidae) classified within the subfamily Lepturinae. The tribe is named for its association with Sakhalin Island and surrounding regions of the Russian Far East. Members of this tribe are characterized by their elongated bodies and antennae typical of lepturine cerambycids. The tribe contains limited described diversity, reflecting its restricted geographic distribution.
Saperda
flat-faced longhorn beetles
Saperda is a genus of flat-faced longhorn beetles in the family Cerambycidae, subfamily Lamiinae, erected by Johan Christian Fabricius in 1775. Species in this genus are wood-boring beetles whose larvae develop in living or stressed trees, particularly poplars, willows, and other broadleaf hosts. Several species are economically significant pests of plantation trees and fruit crops. The genus has a Holarctic distribution with highest diversity in the Palearctic region.
Saperda calcarata
Poplar Borer
Saperda calcarata, commonly known as the poplar borer, is a longhorned beetle (Cerambycidae) first described by Thomas Say in 1824. The species is native to North America, occurring in Canada and the United States. Larvae are significant pests of balsam poplar and related Populus species, tunneling at the junction of the root and stem where they cause structural damage that can girdle and kill trees. The species exhibits a two-year life cycle in western Canada and possesses a recognized variety, Saperda calcarata var. adspersa, distinguished by coloration differences between sexes.
Saperda candida
Round-headed Apple Tree Borer
Saperda candida is a longhorned beetle (Cerambycidae) native to North America. It is a significant pest of trees in the rose family (Rosaceae), particularly apple, pear, hawthorn, and crabapple. The species was described by Fabricius in 1787 and occurs across Canada and the eastern United States. Its larvae are roundheaded borers that tunnel beneath bark and destroy cambium tissue, often killing young or stressed trees.
Saperda cretata
Spotted Apple Tree Borer
Saperda cretata is a longhorned beetle in the family Cerambycidae, described by Newman in 1838. It is distributed across Canada and the United States. The species is commonly known as the Spotted Apple Tree Borer, indicating a likely association with apple and related trees in the rose family (Rosaceae). Like other members of the genus Saperda, it is expected to have larvae that bore into wood, though specific details of its biology remain poorly documented in available sources.
Saperda discoidea
Hickory Saperda
Saperda discoidea is a longhorned beetle species in the family Cerambycidae, first described by Fabricius in 1798. It is commonly known as the Hickory Saperda. The species belongs to the genus Saperda, a group of wood-boring beetles whose larvae develop in living or stressed deciduous trees. Like other members of its genus, this species is associated with hardwood hosts, with hickory indicated by its common name. It occurs in North America with records from Canada (Ontario and Québec) and the United States.
Saperda fayi
Thorn-limb Borer
Saperda fayi is a species of longhorned beetle in the family Cerambycidae, described by Bland in 1863. It belongs to the genus Saperda, a group of medium-sized cerambycids commonly associated with woody plants. The species is known from Canada and the United States, with records from New Brunswick, Ontario, and Québec in Canada. Two infraspecific varieties have been described: var. shoemakeri and var. immaculipennis. As a member of the Lamiinae subfamily, it likely develops as a larva in living or recently dead woody tissue.
Saperda horni
Saperda horni is a species of longhorned beetle in the family Cerambycidae, described by Joutel in 1902. It is known from Canada and the United States. The species name is frequently misspelled as "hornii" in literature and databases. Taxonomic authorities currently treat Saperda horni as a synonym of Saperda hornii Monné & Giesbert, 1994, though the original spelling horni has priority. The species belongs to the genus Saperda, which includes wood-boring beetles that typically attack stressed or weakened trees.
Saperda imitans
Oblique-banded Longhorn Beetle
Saperda imitans is a univoltine longhorned beetle in the family Cerambycidae, described by Felt and Joutel in 1904. It is a specialist on black cherry (Prunus serotina), particularly infesting wind-damaged trees in Allegheny hardwood stands. The species overwinters in sapwood and outer heartwood, causing damage that impacts commercial timber value. It is not attracted to ethanol baits and shows specific preferences for host condition, targeting dying trees with moist phloem rather than completely dead or healthy specimens.
Saperda inornata
Poplar-gall Saperda
Saperda inornata is a longhorned beetle (Cerambycidae) native to North America, closely associated with trembling aspen (Populus tremuloides) throughout its life cycle. Larvae develop within living aspen trees, tunneling through wood and inner bark, while adults feed on bark and other tree tissues. The species was described by Thomas Say in 1824 and occurs across Canada and the United States. It has been observed in Manitoba, New Brunswick, Nova Scotia, and Ontario in Canada, as well as the northern United States.
Saperda lateralis
Red-edged Saperda
Saperda lateralis is a longhorned beetle in the family Cerambycidae, first described by Johan Christian Fabricius in 1775. It is broadly distributed across eastern North America, ranging from Canada through the eastern United States. The species is associated with several tree hosts, particularly maples, and is known to attack stressed or declining trees. A distinctive subspecies, S. lateralis rileyi, was described in 2010 from the lower Mississippi Delta region based on consistent morphological differences and partial geographic separation from nominate populations.
Saperda moesta
Saperda moesta is a species of longhorn beetle in the family Cerambycidae, described by LeConte in 1850. It belongs to the subfamily Lamiinae and tribe Saperdini. The species is recognized as valid by major taxonomic databases including GBIF and NCBI, though Catalogue of Life lists it as a synonym. Distribution records indicate presence in Canada and the contiguous United States.