Longhorn-beetle
Guides
Microgoes oculatus
Microgoes oculatus is a longhorn beetle (family Cerambycidae) and the sole member of its genus. First described by LeConte in 1862, this species occurs in northeastern North America. The specific epithet "oculatus" refers to eye-like markings, a common trait among unrelated beetles bearing this name.
Moneilema annulatum
cactus beetle, ambulated cactus beetle
Moneilema annulatum is a flightless cactus beetle in the family Cerambycidae, first described by Thomas Say in 1824. Adults are found almost exclusively on opuntioid cacti (prickly pears and chollas), where they feed on plant tissues and flowers. Larvae tunnel within cactus stems, often causing visible damage in the form of hardened black exudate. The species occurs across western North America from the Great Plains to the Pacific coast.
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clamator
spotted pine sawyer
Monochamus clamator, the spotted pine sawyer, is a species of longhorn beetle in the family Cerambycidae described by LeConte in 1852. The species exhibits several recognized subspecies across western North America and has been documented in pine woodland habitats. Research indicates host plants serve as a selective pressure driving genetic divergence in this species. Adults have been observed at blacklights and on stressed or dead pine trees.
Monochamus scutellatus
white-spotted sawyer, spruce sawyer, spruce bug, hair-eater
Monochamus scutellatus is a large cerambycid beetle native to North America, commonly known as the white-spotted sawyer. Adults are notable for extreme sexual dimorphism in antennae length, with male antennae reaching up to twice body length. The species colonizes stressed, dying, or recently dead conifers, showing strong preference for burned forest habitats. Larvae develop as wood-borers, creating galleries in phloem, cambium, and sapwood. Adults emerge mid-June to mid-August and feed on conifer bark and foliage before mating.
Muscidora tumacacorii
Muscidora tumacacorii is a longhorn beetle species in the family Cerambycidae, first described by Knull in 1944. It belongs to the tribe Trachyderini, a group of flower-visiting cerambycids often associated with Asteraceae host plants. The species epithet references the Tumacacori region of southern Arizona, suggesting a southwestern U.S. distribution. Available records indicate it is rarely encountered, with minimal observational data documenting its biology and ecology.
Neaneflus fuchsii
Neaneflus fuchsii is a species of longhorn beetle (family Cerambycidae) described by Wickham in 1905. It belongs to the subfamily Cerambycinae and tribe Elaphidiini. The species is distributed in North America and Middle America, with records from Mexico and the United States.
Necydalis cavipennis
Necydalis cavipennis is a long-horned beetle in the family Cerambycidae, characterized by its wasp-mimicking appearance. The species occurs in Central America and North America, with records extending into British Columbia. It belongs to the subfamily Necydalinae, a group noted for their striking mimicry of Hymenoptera. The genus Necydalis contains several species with similar mimetic adaptations.
Neobellamira delicata australis
Neobellamira delicata australis is a subspecies of longhorn beetle (Cerambycidae) described by Linsley and Chemsak in 1976. It 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. The subspecies epithet "australis" indicates a southern distribution relative to the nominate subspecies. As a member of the genus Neobellamira, it shares the slender body form and flower-visiting habits characteristic of this group of cerambycids.
Neoclytus acuminatus
Red-headed Ash Borer, Red-necked Ash Borer
Neoclytus acuminatus, commonly known as the red-headed ash borer, is a North American longhorn beetle in the family Cerambycidae. Adults measure 12–16 mm in length and exhibit striking wasp-mimic coloration with reddish-brown bodies marked by four contrasting yellow bands. The species develops in dead or dying hardwood trees, particularly ash, hickory, and oak, where larvae feed on sapwood. Multiple generations may occur annually in warmer regions. Adults emerge in early spring and are frequently attracted to ethanol-based baits. The species has expanded beyond its native range through human-mediated transport of wood materials and is now established in parts of Europe.
Neoclytus caprea
Banded Ash Borer
Neoclytus caprea, commonly called the banded ash borer, is a North American longhorn beetle in the family Cerambycidae. Adults display striking yellow and black (females) or white and black (males) banded coloration that mimics wasps. The species develops in the sapwood of ash, hickory, elm, and oak trees, completing one generation per year. Unlike the invasive emerald ash borer, this native species primarily colonizes stressed, dying, or recently dead wood rather than healthy trees.
Neoclytus conjunctus
Western Ash Borer
Neoclytus conjunctus is a species of longhorned beetle in the family Cerambycidae, described by LeConte in 1857. It is commonly known as the Western Ash Borer. The species belongs to the Clytini tribe, a group known for wasp-mimicking appearance and rapid movement. Like other Neoclytus species, it is associated with woody hosts and is distributed in western North America.
Neoclytus mucronatus mucronatus
Neoclytus mucronatus mucronatus is a subspecies of longhorn beetle in the family Cerambycidae. Males produce an aggregation pheromone, (R)-3-hydroxyhexan-2-one, that attracts both sexes. The species has been documented in fermenting bait traps in Missouri, with adults active in mid-summer. Larvae develop in woody tissues of dead or dying trees, particularly hackberry.
Neoclytus tenuiscriptus
Neoclytus tenuiscriptus is a species of longhorn beetle in the family Cerambycidae, described by Fall in 1907. It belongs to the genus Neoclytus, a group of wasp-mimicking beetles found in North America. The species is documented from Mexico and the United States, though specific details about its biology and ecology remain limited in available sources. Like other members of its genus, it likely exhibits wasp-like coloration and rapid movement as defensive adaptations.
Neoclytus torquatus
Neoclytus torquatus is a species of longhorn beetle (family Cerambycidae) in the tribe Clytini. It was described by John Lawrence LeConte in 1873. Like other members of the genus Neoclytus, it is likely a wasp mimic with rapid, darting movements that enhance its resemblance to stinging insects. The species is distributed in North America, with records from the United States and Mexico.
Neocompsa bravo
Rio Bravo Longhorn
Neocompsa bravo is a species of longhorn beetle in the family Cerambycidae, described in 2020. It belongs to the tribe Tropidini within the subfamily Cerambycinae. The species is known from the United States, with GBIF distribution records indicating occurrence in the US. It is commonly referred to as the Rio Bravo Longhorn.
Neocompsa exclamationis
A small longhorn beetle in the family Cerambycidae, described by Thomson in 1861. The species name 'exclamationis' likely refers to a distinctive marking resembling an exclamation point. It belongs to the tribe Tropidini and is part of a genus containing numerous small, slender cerambycids primarily distributed in the Americas.
Neocompsa mexicana
Neocompsa mexicana is a species of longhorn beetle (family Cerambycidae) described by Thomson in 1865. It belongs to the subfamily Cerambycinae and tribe Tropidini. The species is distributed in Middle America and North America, with records from Costa Rica and Guatemala.
Neocompsa puncticollis orientalis
Neocompsa puncticollis orientalis is a subspecies of longhorn beetle in the family Cerambycidae, described by Martins & Chemsak in 1966. It belongs to the tribe Tropidini within the subfamily Cerambicinae. The subspecies is distributed in Middle America and North America, with records from Guatemala and Mexico. As a member of the genus Neocompsa, it is part of a group of small to medium-sized cerambycids typically associated with woody vegetation.
Neomallodon
Neomallodon is a monotypic genus of longhorn beetles (Cerambycidae) established by Linsley in 1957. The genus contains a single species, Neomallodon arizonicus, originally described from southern Arizona. The species was elevated to genus level by Skiles (1976), distinguishing it from related prionine genera based on morphological characters. As a member of the subfamily Prioninae, it belongs to a group of large, robust beetles with larvae that typically bore into wood.
Nothopleurus madericus
Nothopleurus madericus is a large prionine longhorn beetle described by Skiles in 1978. It belongs to a genus characterized by robust, wood-boring beetles. The species name references Madera Canyon in the Santa Rita Mountains of Arizona, a known locality for this rare beetle. Field observations indicate adults may be crepuscular or nocturnal, with at least one individual observed in an emergence hole on oak during evening hours.
Oberea affinis
Raspberry Cane Borer
Oberea affinis is a species of longhorn beetle in the family Cerambycidae, first described by Leng & Hamilton in 1896. Commonly known as the Raspberry Cane Borer, this species belongs to the genus Oberea, which contains numerous stem-boring beetles associated with various host plants. The species is part of the tribe Saperdini (or Obereini, depending on classification system) within the subfamily Lamiinae.
Oberea caseyi
Oberea caseyi is a species of longhorn beetle in the tribe Obereini, described by Plavilstshikov in 1926. It belongs to the genus Oberea, a group of slender, elongate beetles commonly known as gall-making longhorns. The species is distributed in North America, with records from Canada and the United States. Like other members of its genus, it likely exhibits an elongate, cylindrical body form with relatively long antennae.
Oberea ocellata
Sumac stem borer
Oberea ocellata is a flat-faced longhorn beetle in the tribe Saperdini, commonly known as the sumac stem borer. It is a documented pest of woody plants, with larvae developing inside host stems and causing structural damage. The species has a three-year life cycle and is distributed across North America.
Oberea ruficollis
red-necked longhorn beetle
Oberea ruficollis is a longhorn beetle (family Cerambycidae) in the subfamily Lamiinae. First described by Fabricius in 1793, it occurs in North America including Canada and the United States. Like other members of the genus Oberea, it is characterized by an elongated, slender body form. The specific epithet "ruficollis" refers to the reddish coloration of the pronotum (collar region).
Oberea tripunctata
dogwood twig borer
Oberea tripunctata, commonly known as the dogwood twig borer, is a species of longhorn beetle in the family Cerambycidae. Adults emerge in early June and feed on dogwood twigs, causing girdling damage. Females lay eggs singly on healthy twigs; larvae bore into twigs and overwinter in stems, with some individuals taking up to two years to complete development. The species is considered a minor pest of flowering dogwood and has been recorded from additional hosts including elm, azalea, viburnum, and various fruit trees.
Obrium californicum
Obrium californicum is a species of longhorn beetle in the family Cerambycidae, described by Van Dyke in 1920. It belongs to the subfamily Cerambycinae and tribe Obriini. The species is known from North America, with records from the United States. Like other members of the genus Obrium, it is likely a small to medium-sized beetle with relatively unmodified antennae.
Obrium constricticolle
Obrium constricticolle is a species of longhorn beetle (Cerambycidae) described by Schaeffer in 1908. It belongs to the tribe Obriini within the subfamily Cerambycinae. The species is known from the United States and Mexico.
Obrium discoideum
Obrium discoideum is a longhorn beetle species in the tribe Obriini, described by John Lawrence LeConte in 1873. It belongs to a genus of small to medium-sized cerambycids characterized by relatively short antennae. The species has been recorded from Central America and parts of North America.
Obrium maculatum
Beige Longhorned Beetle
Obrium maculatum is a species of longhorn beetle in the family Cerambycidae, described by Guillaume-Antoine Olivier in 1795. It is commonly known as the Beige Longhorned Beetle. The species is distributed across North America and Middle America, with records from Canada, the United States, and Mexico. As a member of the tribe Obriini, it belongs to a group of small to medium-sized cerambycine beetles.
Oeme rigida deserta
Oeme rigida deserta is a subspecies of longhorn beetle in the family Cerambycidae, described by Casey in 1924. It belongs to the tribe Oemini within the subfamily Cerambycinae. The subspecies has been documented from western North America, with specific collection records from pinyon-oak-juniper woodland habitats. It appears to be associated with dead coniferous wood, particularly Pinus edulis (Colorado pinyon pine).
Opsimus
Opsimus is a monotypic genus of longhorn beetles (Cerambycidae) established by Mannerheim in 1843. The genus contains a single species, Opsimus quadrilineatus. It belongs to the tribe Opsimini within the subfamily Cerambycinae.
Ornithia mexicana
Ornithia mexicana is a longhorn beetle (family Cerambycidae) described by Sturm in 1843. It belongs to the subfamily Cerambycinae and tribe Dryobiini. The species occurs in Middle and North America, with documented presence in Costa Rica and Guatemala. As a member of the Cerambycidae, it is a wood-boring beetle whose larvae likely develop in dead or dying wood.
Orwellion gibbulum arizonense
Orwellion gibbulum arizonense is a subspecies of longhorn beetle in the family Cerambycidae. It belongs to the tribe Elaphidiini within the subfamily Cerambycinae. The subspecies was described by Casey in 1891 and is distributed in parts of North and Middle America. Very little specific information is documented about this particular subspecies beyond its taxonomic status and general geographic occurrence.
Osmidus guttatus
Osmidus guttatus is a species of longhorn beetle in the family Cerambycidae, described by John Lawrence LeConte in 1873. It belongs to the tribe Hesperophanini within the subfamily Cerambycinae. The species has been recorded from North America and Mexico.
Osmopleura chamaeropis
Cabbage Palm Longhorn
Osmopleura chamaeropis is a longhorn beetle (Cerambycidae) and the sole species in its genus. It was described by George Henry Horn in 1893. The species is endemic to the southeastern United States, where it is associated with cabbage palm (Sabal palmetto). Its common name reflects this host relationship.
Paranoplium
Paranoplium is a monotypic genus of longhorn beetles (family Cerambycidae) established by Casey in 1924. The genus contains a single species, Paranoplium gracile, distributed in the western United States and Mexico. It belongs to the tribe Oemini within the subfamily Cerambycinae.
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.
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.
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.
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.
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.
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 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 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.