Cerambycidae
Guides
Paranoplium gracile
Paranoplium gracile is a longhorn beetle (family Cerambycidae) and the sole species in its genus. It was described by LeConte in 1881 and is native to North America. The species belongs to the subfamily Cerambycinae and tribe Oemini. It is represented by 238 observations on iNaturalist, indicating it is documented but not particularly abundant in collections.
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.
Paratimia conicola
Paratimia conicola is a species of longhorn beetle in the family Cerambycidae, tribe Atimiini. It was described by Fisher in 1915. The genus Paratimia is small and poorly documented, with species known from western North America. Atimiini beetles are generally associated with coniferous forests and are considered relictual in distribution.
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.
Parevander hovorei
Parevander hovorei is a species of longhorn beetle (Cerambycidae) described by Giesbert in 1984. It belongs to the tribe Trachyderini, a group known for often robust and frequently colorful beetles. The species is named in honor of the coleopterist Frank Hovore. Available information on this species is limited, with basic taxonomic and distribution data documented but detailed natural history poorly known.
Parmenini
Parmenini is a tribe of longhorn beetles within the subfamily Lamiinae of the family Cerambycidae. The tribe contains approximately 80 genera distributed across multiple continents, with representatives in North America, South America, Europe, Asia, and Australasia. Members exhibit considerable morphological diversity, ranging from small to moderately sized beetles with varied body forms and antennal lengths. The tribe was taxonomically treated by Linsley and Chemsak (1984) in their comprehensive monograph of North American Cerambycidae.
Parmenosoma
Parmenosoma is a genus of longhorn beetles in the subfamily Lamiinae, tribe Parmenini. It contains two described species: P. griseum and P. villosa. The genus was established by Schaeffer in 1908.
Parmenosoma griseum
Parmenosoma griseum is a longhorn beetle species described by Schaeffer in 1908. It belongs to the subfamily Lamiinae within the family Cerambycidae. The species is known from the United States and Mexico, with very few documented observations. As a member of the Parmenini tribe, it shares characteristics with other Parmenosoma species, though specific biological details remain poorly documented.
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.
Pentanodes
Pentanodes is a genus of longhorn beetles (Cerambycidae) established by Schaeffer in 1904. The genus belongs to the tribe Tillomorphini within the subfamily Cerambycinae. Two species are currently recognized: Pentanodes albofasciatus (Fisher, 1932) and Pentanodes dietzii (Schaeffer, 1904). The genus is poorly documented in scientific literature, with limited information available on its biology and ecology.
Perarthrus linsleyi
Perarthrus linsleyi is a species of longhorned beetle in the family Cerambycidae, described by Knull in 1942. The species is associated with creosote bush (Larrea tridentata) in arid and semi-arid environments. Adults feed on creosote bush flowers and mate on flowers and foliage. The species exhibits a scramble competition mating system characterized by male-wide ranging search behavior and absence of resource or mate defense.
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.
Peritapnia
Peritapnia is a genus of longhorn beetles (Cerambycidae) in the tribe Acanthoderini. The genus was established by Horn in 1894 and contains four described species distributed in western North America. Members are small to medium-sized cerambycids with affinities to other Acanthoderini genera.
Phaea
Phaea is a genus of longhorn beetles (family Cerambycidae, subfamily Lamiinae) established by Newman in 1840. It belongs to the tribe Tetraopini and is characterized by morphological features typical of this group. The genus has been recorded from Colombia based on distribution data.
Phaea canescens
Phaea canescens is a species of longhorn beetle (Cerambycidae) described by John Lawrence LeConte in 1852. It belongs to the subfamily Lamiinae and tribe Tetraopini. The species is known from the United States, though specific details about its biology, host associations, and ecology remain poorly documented in the available literature.
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.
Phoracantha semipunctata
Australian Eucalyptus longhorn, Common Eucalyptus Longhorn, eucalyptus longhorned borer, firewood beetle
Phoracantha semipunctata is a wood-boring beetle in the family Cerambycidae, native to Australia and invasive in many regions where Eucalyptus has been introduced. Adults are crepuscular, active during warmer evening hours when temperatures exceed 15°C. Females lay eggs under loose bark or in bark crevices of stressed or freshly cut Eucalyptus trees; larvae bore into phloem and sapwood, potentially girdling and killing trees. The species is a significant pest in plantations outside Australia, though outbreaks in its native range are associated with drought-stressed trees.
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
Phymatodes is a genus of longhorn beetles (Cerambycidae) in the tribe Callidiini, with more than 50 described species distributed across the northern hemisphere. The genus is most diverse in western North America, where 26 species are currently recognized. Species exhibit considerable taxonomic complexity, with recent nomenclatural revisions clarifying misapplied names and synonymies. Some species are associated with specific host plants, including grape vines (Vitis) and maple (Acer), while others have broader host associations.
Phymatodes aeneus
Phymatodes aeneus is a species of longhorn beetle in the family Cerambycidae. It was described by John Lawrence LeConte in 1854 and is found in North America, including British Columbia and the western United States. The genus Phymatodes is most diverse in western North America, with 26 currently recognized species in the region.
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 blandus
Phymatodes blandus is a species of longhorned beetle in the family Cerambycidae. It is found in the United States. The species was formerly divided into subspecies, with P. blandus concolor recognized as a full species following nomenclatural revisions by Swift and Ray (2010).
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 nigrescens
Phymatodes nigrescens is a species of longhorn beetle in the family Cerambycidae, first described by Hardy & Preece in 1927. The species was previously known under the synonym Phymatodes oregonensis, which was synonymized under P. nigrescens by Swift & Ray in 2010 based on examination of type specimens. It is one of 26 currently recognized species in the genus Phymatodes in North America.
Phymatodes nitidus
sequoia cone borer
Phymatodes nitidus is a longhorn beetle (family Cerambycidae) native to western North America. The species is notable for its specialized reproductive association with conifers, specifically laying eggs on giant sequoia and coast redwood cones. Larvae burrow into these cones to develop. The species was described by LeConte in 1874. Phymatodes mojavensis was synonymized under P. nitidus in 2010.
Phymatodes obliquus
Phymatodes obliquus is a species of longhorn beetle in the family Cerambycidae. It was formerly confused with P. decussatus due to misapplication of that name by Linsley (1964), but was correctly identified as a distinct species by Swift & Ray (2010). The species is primarily associated with oak (Quercus) hosts in western North America.
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.
Pidonia
Pidonia is a genus of longhorn beetles in the family Cerambycidae, subfamily Lepturinae. These beetles are typically small with black and yellow or orange coloration. Field observations indicate adults are frequently found on flowers, particularly those of Asteraceae and Malvaceae families. The genus occurs across North America and Eurasia, with species inhabiting forested and woodland environments.
Pidonia aurata
Pidonia aurata is a small long-horned beetle in the subfamily Lepturinae, known from the western United States. Based on field observations, adults display a distinctive black-and-yellow color pattern and have been collected on flowers of Asteraceae and Malvaceae. The species appears to be active in early to mid-summer, with records from June at elevations around 7000 feet in northern Arizona.
Pidonia densicollis
Pidonia densicollis is a species of flower longhorn beetle (subfamily Lepturinae) in the family Cerambycidae. It is distributed in the United States. The species was described by Casey in 1914. As a member of the Rhagiini tribe, it likely shares the flower-visiting habits common to many lepturines, though specific behavioral observations for this species are limited.
Pidonia nitidicollis
A small black and yellow longhorn beetle in the subfamily Lepturinae. Adults have been observed visiting flowers of various herbaceous plants in western North America. The species is currently accepted under this name, though some sources list it as a synonym of Pidonia ruficollis.
Pidonia quadrata
Pidonia quadrata is a species of flower longhorn beetle (subfamily Lepturinae) in the family Cerambycidae. Described by Hopping in 1931, this species occurs in western North America, with records from Canada and the United States. Like other members of the genus Pidonia, adults are likely associated with flowers where they feed on pollen and nectar.
Pidonia ruficollis
Stripe-legged Long-horned Beetle
Pidonia ruficollis is a species of long-horned beetle (Cerambycidae) in the subfamily Lepturinae, first described by Thomas Say in 1824. It is commonly known as the Stripe-legged Long-horned Beetle. The species is part of a diverse genus of flower-visiting cerambycids and has been documented across eastern North America.
Pidonia scripta
Pidonia scripta is a species of longhorn beetle in the family Cerambycidae, described by John Lawrence LeConte in 1869. It belongs to the subfamily Lepturinae, commonly known as flower longhorns. The species is native to western North America and has been documented in both Canada and the United States.
Piezocera
Piezocera is a genus of longhorn beetles (Cerambycidae) in the tribe Piezocerini, established by Audinet-Serville in 1834. The genus contains at least fifteen described species, with three new species described in 2025 from Brazil and Bolivia. South America exhibits the highest species richness for the genus, with potential distribution modeling indicating suitability across most of the continent except the Andes region and most of Argentina.
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.