Callidiini
Guides
Callidiellum
Callidiellum is a genus of longhorn beetles (Cerambycidae) in the tribe Callidiini. The genus contains at least three described species, including the well-studied Callidiellum rufipenne, an invasive Asian cedar borer established in North America. Members of this genus are wood-borers specializing on living conifers in the family Cupressaceae.
Callidiellum cupressi
cypress longhorn beetle
Callidiellum cupressi is a species of longhorn beetle in the family Cerambycidae, described by Van Dyke in 1923. It belongs to the tribe Callidiini, a group of wood-boring beetles. The specific epithet 'cupressi' suggests an association with cypress (Cupressaceae), though detailed biological information remains limited in available sources. The species is recorded from North America.
Callidiellum villosulum
A small longhorn beetle (Cerambycidae: Cerambycinae: Callidiini) characterized by sexual dimorphism in mouthpart morphology. Adult females possess larger labial and maxillary palps with more developed sensilla basiconica IV, sensilla campaniformia, and sensilla chaetica II, structures associated with oviposition site selection. Males exhibit more developed sensilla basiconica I, potentially involved in mate recognition. The species has been subject to detailed scanning electron microscopy studies of its chemosensory and mechanosensory mouthpart structures.
Callidium antennatum
Blackhorned Pine Borer
Callidium antennatum is a species of longhorned beetle (family Cerambycidae) described by Newman in 1838. It is commonly known as the Blackhorned Pine Borer. The species is native to North America and has been recorded from both Canada and the United States. Like other members of the genus Callidium, it is associated with coniferous trees, particularly pines.
Callidium frigidum
Callidium frigidum is a species of longhorned beetle in the family Cerambycidae, described by Casey in 1912. The species belongs to the tribe Callidiini within the subfamily Cerambycinae. It is known from northern North America, with records from Canada including Newfoundland, Ontario, and Québec. As a member of the genus Callidium, it is associated with coniferous trees, though specific host associations for this species have not been documented in the available sources.
Callidium pseudotsugae
Callidium pseudotsugae is a species of longhorn beetle (family Cerambycidae) described by Fisher in 1920. The specific epithet 'pseudotsugae' indicates an association with Douglas-fir (Pseudotsuga), suggesting the species likely breeds in this coniferous host. As a member of the tribe Callidiini, it belongs to a group of cerambycids typically associated with coniferous trees. Very little specific information about its biology, distribution, or appearance has been documented in the available literature.
Callidium sempervirens
Callidium sempervirens is a species of longhorn beetle described by Linsley in 1942. It belongs to the tribe Callidiini within the subfamily Cerambycinae. Like other members of the genus Callidium, this species is associated with coniferous trees. The specific epithet sempervirens refers to evergreen vegetation, suggesting a connection to conifer hosts.
Callidium sequoiarium
Callidium sequoiarium is a species of longhorned beetle (family Cerambycidae) described by Fisher in 1920. As a member of the genus Callidium, it belongs to a group of wood-boring beetles typically associated with coniferous trees. The species epithet "sequoiarium" suggests a potential association with sequoia or related conifers, though specific host records have not been documented in the available sources. The species is recognized as valid but appears to be rarely encountered or reported.
Callidium texanum
Black-horned Juniper Borer
Callidium texanum is a longhorned beetle in the family Cerambycidae, described by Schaeffer in 1917. It is commonly known as the Black-horned Juniper Borer. The species belongs to the tribe Callidiini, a group of cerambycids typically associated with coniferous hosts. Like other members of its genus, it is presumed to breed in juniper and related gymnosperms, though specific biological details remain poorly documented in published literature.
Elatotrypes
Elatotrypes is a monotypic genus of longhorn beetles (family Cerambycidae) containing a single described species, Elatotrypes hoferi. The genus was established by Fisher in 1919 and is classified within the tribe Callidiini of the subfamily Cerambycinae. Very little is known about the biology or natural history of this genus due to its rarity and limited documentation.
Elatotrypes hoferi
Elatotrypes hoferi is a species of longhorn beetle in the family Cerambycidae, described by Fisher in 1919. It belongs to the tribe Callidiini within the subfamily Cerambycinae. The species is known from western Canada, with records from Alberta and British Columbia. Very few observations exist in public databases, suggesting it is either rare, cryptic, or undercollected.
Meriellum
Meriellum is a monotypic genus of longhorn beetles in the family Cerambycidae, established by Linsley in 1957. The genus contains a single species, Meriellum proteus, classified within the tribe Callidiini of the subfamily Cerambycinae. Little detailed information is available about the biology or ecology of this genus.
Meriellum proteus
Meriellum proteus is a longhorn beetle in the family Cerambycidae, tribe Callidiini. The species was originally described by Kirby in 1837 as Callidium proteus. It is known from northern North America, with records from Canadian provinces including Alberta, British Columbia, Labrador, and Manitoba. The genus Meriellum contains relatively few species, and this taxon represents a small, understudied cerambycid lineage.
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 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.
Pronocera
Pronocera is a genus of long-horned beetles (Cerambycidae) established by Motschulsky in 1859. The genus contains three described species: Pronocera angusta, P. collaris, and P. sibirica. Pronocera angusta has been studied in detail for its morphology, phenology, and ecology in relation to Norway spruce forests. The genus belongs to the tribe Callidiini within the subfamily Cerambycinae.
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.
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.
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.
Semanotus amplus
Semanotus amplus is a species of longhorned beetle (family Cerambycidae) in the tribe Callidiini. It is a wood-boring beetle associated with coniferous hosts, particularly junipers. The species was described by Casey in 1912 and is known from western North America. Field observations indicate it infests living or recently dead wood, with larvae creating galleries in the sapwood. Adults have been encountered at night on host tree trunks.
Semanotus conformis
Semanotus conformis is a species of longhorned beetle (family Cerambycidae) in the tribe Callidiini, described by Casey in 1924. It belongs to a genus of wood-boring beetles that infest conifers, particularly junipers and related Cupressaceae. The species is poorly documented in the available literature, with minimal published information on its biology, distribution, and host associations. Available records suggest it occurs in the western United States.
Semanotus juniperi
Semanotus juniperi is a rare longhorned beetle (family Cerambycidae) in the tribe Callidiini. It was described by Fisher in 1915 and was long considered endemic to the Santa Catalina Mountains in Arizona. Recent field observations have documented the species in additional locations in northern Arizona and southern Nevada, where it develops in large limbs of Utah juniper (Juniperus osteosperma). Adults are large, black beetles that are rarely encountered alive; most records come from rearing larvae from infested wood or from dead adults found in emergence holes.
Semanotus ligneus
Cedar Tree Borer
Semanotus ligneus is a species of longhorned beetle in the family Cerambycidae, commonly known as the Cedar Tree Borer. It is native to North America and has been recorded from multiple Canadian provinces including Manitoba, New Brunswick, Nova Scotia, and Ontario. The species belongs to the tribe Callidiini, which includes many wood-boring beetles associated with coniferous trees.
Semanotus terminatus
Semanotus terminatus is a species of longhorned beetle (family Cerambycidae) in the tribe Callidiini. It is native to North America with confirmed records from multiple Canadian provinces including Alberta, British Columbia, Manitoba, New Brunswick, and Nova Scotia. As a member of the genus Semanotus, it is presumed to be associated with coniferous hosts, though specific biological details for this species remain poorly documented in published literature. The species was described by Casey in 1912.
Xylocrius
Xylocrius is a genus of longhorn beetles (Cerambycidae) described by LeConte in 1873. The genus contains at least two described species: Xylocrius agassizii and Xylocrius cribratus, both native to North America. It belongs to the tribe Callidiini within the subfamily Cerambycinae.
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.