Cerambycidae
Guides
Monochamus
sawyer beetles, sawyers
Monochamus is a large genus of longhorn beetles (Cerambycidae) distributed worldwide. Commonly known as sawyer beetles, species in this genus are characterized by larvae that bore into dead or dying coniferous trees, particularly pines. Several species serve as vectors for the pine wood nematode (Bursaphelenchus xylophilus), the causative agent of pine wilt disease. The genus exhibits strong sexual dimorphism in antennae length, with males typically bearing antennae twice as long as their bodies.
Monochamus carolinensis
Carolina Pine Sawyer
Monochamus carolinensis is a longhorn beetle in the subfamily Lamiinae, commonly known as the Carolina Pine Sawyer. It is a significant vector of the pinewood nematode Bursaphelenchus xylophilus, the causative agent of pine wilt disease. The species is native to North America, occurring in Canada and the United States, and has been detected in China. Adults are attracted to blacklights and are associated with pine forests.
Monochamus 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 clamator latus
Spotted Pine Sawyer
Monochamus clamator latus is a subspecies of the spotted pine sawyer, a large longhorned beetle in the family Cerambycidae. Adults are active during summer months and are attracted to blacklights. The species breeds in dead, dying, or stressed coniferous trees, particularly pines. Adults have been observed on trunks of stressed Pinus ponderosa, with males exhibiting mate-guarding behavior.
Monochamus clamator nevadensis
Spotted Pine Sawyer
Monochamus clamator nevadensis is a subspecies of the spotted pine sawyer, a longhorned beetle in the family Cerambycidae. It belongs to a genus of large woodboring beetles that infest coniferous trees, particularly pines. The subspecies was described by Dillon & Dillon in 1941 and is distributed in western North America, including Nevada and surrounding regions. Like other Monochamus species, it develops in dead, dying, or stressed coniferous wood and is attracted to blacklights at night.
Monochamus clamator rubigineus
Spotted Pine Sawyer (for species complex)
Monochamus clamator rubigineus is a subspecies of longhorned beetle in the family Cerambycidae, described by Bates in 1880. It belongs to the Spotted Pine Sawyer species complex, which are large woodboring beetles associated with coniferous forests. Adults are active during summer months and are attracted to blacklights. The species breeds in dead, dying, or stressed pine trees.
Monochamus maculosus
spotted pine sawyer
Monochamus maculosus, the spotted pine sawyer, is a longhorned beetle native to North America. It was formerly known as Monochamus mutator. Adults are attracted to monochamol, a sex-aggregation pheromone produced by males. The species breeds in stressed or recently dead conifers, with larvae tunneling in phloem and sapwood. It is a primary vector of the pinewood nematode, the causal agent of pine wilt disease.
Monochamus notatus
northeastern pine sawyer, notable sawyer
Monochamus notatus is a large longhorned beetle (Cerambycidae) native to North America, occurring in Canada and the United States east of the Rocky Mountains. Adults are active from late spring through summer and are attracted to dead and dying conifers, particularly pines. The species is notable for its pronounced sexual dimorphism: males possess antennae up to twice their body length and elongated forelegs with expanded tarsi, while females have shorter antennae and unmodified legs. Like other Monochamus species, it responds to the aggregation pheromone monochamol and male-produced 2-(undecyloxy)-ethanol for mate location.
Monochamus obtusus
Monochamus obtusus is a longhorned beetle (family Cerambycidae) described by Thomas Lincoln Casey Jr. in 1891. It belongs to a genus of sawyer beetles that develop as wood-borers in coniferous trees. The species is known from western North America, with records from British Columbia, Canada and the western United States. Two subspecies have been recognized: M. o. obtusus (the nominate form) and M. o. fulvomaculatus described by Linsley & Chemsak in 1983. Like other Monochamus species, it likely plays a role in forest nutrient cycling through its association with dead and dying conifer wood.
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.
Monochamus titillator
Southern Pine Sawyer
Monochamus titillator is a large longhorned beetle native to the United States, commonly known as the southern pine sawyer. Adults are notable for their elongated antennae, particularly in males, which may exceed body length. The species develops in pine trees and has been documented to respond to kairomones produced by bark beetles, suggesting ecological interactions with these forest pests. Larvae produce distinctive acoustic signals detectable in the 1000-2800 Hz range, a trait that has been explored for detecting southern pine beetle infestations.
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.
Nathrius
Nathrius is a genus of longhorn beetles in the subfamily Cerambycinae, tribe Psebiini. The genus contains three described species, including the widely distributed N. brevipennis, which has been introduced to Australia. Members are small cerambycids with reduced elytra exposing part of the abdomen.
Nathrius brevipennis
Nathrius brevipennis is a small longhorn beetle (Cerambycidae) native to the Palearctic region that has become cosmopolitan through human-mediated transport in timber and wood packaging. Adults measure 4–7 mm in length. The species is polyphagous on dead twigs of broadleaved trees, with documented hosts spanning at least 15 genera including Alnus, Rosa, Fraxinus, Corylus, Ficus, Castanea, Salix, Juglans, Quercus, Morus, Cornus, Ceratonia, Pistacia, Ziziphus, Robinia, and Ostrya. Its invasive spread has led to first records in Australia and other regions outside its native range.
Neandra
pole borer
Neandra is a genus of longhorned beetles in the family Cerambycidae, subfamily Parandrinae. The genus contains at least two described species: Neandra brunnea and Neandra marginicollis. These beetles are atypical for cerambycids, possessing short, bead-like antennae rather than the elongated antennae characteristic of most longhorned beetles. They are known to bore in decaying wood and are attracted to lights at night.
Neandra brunnea
pole borer, longhorned beetle
Neandra brunnea, commonly known as the pole borer, is a species of longhorn beetle in the subfamily Parandrinae. It is unusual among cerambycids for its relatively short, bead-like antennae rather than the elongated antennae typical of the family. Adults range from 8–20 mm in length and are yellowish-brown to reddish-brown in coloration. The species is distributed across eastern North America, with adults active from March through November. Larvae bore into decaying wood, including wooden poles and posts in contact with moist soil.
Neandra marginicollis
Neandra marginicollis is a species of longhorned beetle in the family Cerambycidae, subfamily Parandrinae. It is one of two subspecies recognized within the species Neandra marginicollis, with the nominate subspecies N. marginicollis marginicollis described by Schaeffer in 1929 alongside the subspecies N. marginicollis punctillata. The species is found in North America. Members of this genus are unusual among cerambycids for their short, bead-like antennae and large, forward-projecting mandibles that give them a superficial resemblance to stag beetles.
Neaneflus
Neaneflus is a genus of longhorn beetles (Cerambycidae) established by Linsley in 1957. The genus contains two described species: N. brevispinus (Chemsak, 1962) and N. fuchsii (Wickham, 1905). It is classified within the tribe Elaphidiini, a diverse group of cerambycine beetles often characterized by their association with woody plants. The genus is rarely encountered, with limited biological and ecological documentation.
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.
Neanthophylax
Neanthophylax is a genus of longhorn beetles in the family Cerambycidae, tribe Oxymirini. The genus was established by Linsley and Chemsak in 1972 and contains at least four described species distributed across North America, with one species extending into Central America. Members of this genus are classified within the subfamily Lepturinae, a group characterized by adults that often visit flowers.
Necydalinae
Necydalinae is a small subfamily of longhorn beetles (Cerambycidae) historically classified as a tribe within Lepturinae but now recognized as a distinct subfamily. The group is characterized by unusually short elytra for cerambycids, giving them a superficial resemblance to rove beetles (Staphylinidae). Most species are bee or wasp mimics. The subfamily contains only two genera: Necydalis (Europe, Asia, North America) and Ulochaetes (western North America).
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.
Neoalosterna capitata
flower longhorn beetle
Neoalosterna capitata is a species of flower longhorn beetle in the family Cerambycidae. It is found in eastern North America, with records from Canada including New Brunswick, Nova Scotia, Ontario, and Québec. The species was originally described by Newman in 1841 under the basionym Allosterna capitata. As a member of the subfamily Lepturinae, adults are likely associated with flowers, though specific ecological details remain poorly documented.
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
Neoclytus is a genus of longhorn beetles (Cerambycidae) comprising approximately 93 species native to the New World. Adults are small to medium-sized beetles (4-20 mm) with striking black-and-yellow or black-and-white banded patterns that provide wasp-mimicry protection. The genus is notable for male-produced aggregation pheromones that attract both sexes. Larvae are wood-borers primarily of dead, dying, or stressed hardwood trees, with several species frequently encountered emerging from stored firewood.
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 approximatus
Neoclytus approximatus is a longhorned beetle (Cerambycidae) described by John Lawrence LeConte in 1862. It is among the most uncommonly encountered longhorned beetles in North America, with a disjunct distribution across the Great Plains and scattered records from the eastern United States. The species' larval host plant remains unknown, making it one of the most elusive cerambycids on the continent.
Neoclytus augusti
Neoclytus augusti is a species of longhorned beetle in the family Cerambycidae, described by Chevrolat in 1835. It belongs to the tribe Clytini, a group known for wasp-mimicking species with rapid, jerky movements. The species occurs in Middle America and North America, including Guatemala and Mexico. Specific details about its biology, host plants, and life history remain poorly documented in available literature.
Neoclytus balteatus
Neoclytus balteatus is a species of longhorned beetle in the family Cerambycidae, described by John Lawrence LeConte in 1873. It belongs to the genus Neoclytus, a group of wasp-mimicking beetles found in North America. Very little specific information is documented for this particular species compared to better-known congeners such as N. caprea and N. acuminatus.
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 interruptus
Neoclytus interruptus is a species of longhorned beetle in the family Cerambycidae, described by John Lawrence LeConte in 1873. Like other members of the genus Neoclytus, it likely exhibits wasp-mimic coloration with contrasting light and dark markings. The species is recorded from North America, though specific details about its biology and host associations remain poorly documented compared to better-known congeners such as N. caprea and N. acuminatus.
Neoclytus jouteli
Neoclytus jouteli is a species of longhorned beetle in the family Cerambycidae, described by Donald R. Davis in 1904. Like other members of the genus Neoclytus, it is a wasp-mimicking beetle with rapid, darting movements. The species is native to North America, with records from the United States. Specific details regarding its biology, host plants, and distribution within North America remain poorly documented in available literature.
Neoclytus modestus
Neoclytus modestus is a species of longhorned beetle in the family Cerambycidae, described by Fall in 1907. It belongs to the tribe Clytini, a group known for wasp-mimicking species with rapid, jerky movements. The species is poorly documented in the literature compared to congeners such as N. caprea and N. acuminatus. Its distribution includes parts of North America, though specific details remain limited.
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 mucronatus vogti
Neoclytus mucronatus vogti is a subspecies of longhorned beetle in the family Cerambycidae, described by Linsley in 1957. It belongs to the tribe Clytini within the subfamily Cerambycinae. The subspecies is known from southwestern North America, with records from California and Mexico. Like other members of the genus Neoclytus, it is associated with woody plants and has been observed on western soapberry (Sapindus saponaria ssp. drummondii) in sand shrubland habitats.
Neoclytus muricatulus
Neoclytus muricatulus is a species of longhorned beetle in the family Cerambycidae, tribe Clytini. Like other members of the genus Neoclytus, it exhibits wasp-mimicry through rapid movement and contrasting color patterns. The species is recorded from Canada and the United States. Specific details regarding its biology, host associations, and ecology remain poorly documented in published literature.
Neoclytus scutellaris
Split-necked Neoclytus
Neoclytus scutellaris is a longhorned beetle (family Cerambycidae) found in the eastern United States. First described by Guillaume-Antoine Olivier in 1790, this species is strongly associated with dead or dying oak trees, where larvae develop in decaying wood. Adults are attracted to fermenting baits and can be distinguished from similar species by the transverse yellow band on the pronotum. The species is sometimes confused with N. mucronatus, which occurs on hickory and hackberry rather than oak.
Neoclytus senilis
Neoclytus senilis is a longhorned beetle in the family Cerambycidae, described by Johan Christian Fabricius in 1798. As a member of the genus Neoclytus, it likely exhibits wasp-mimic coloration and rapid movement characteristic of this group. The species has been recorded from the Bahamas, Cuba, and the Cayman Islands.
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.
Neoclytus vanduzeei
Neoclytus vanduzeei is a species of longhorned beetle in the family Cerambycidae, described by Van Dyke in 1927. It belongs to the tribe Clytini, a group well-known for wasp-mimicry and rapid, erratic movement patterns. The genus Neoclytus contains approximately 25 species in North America, many of which are associated with dead or dying hardwood trees. Specific ecological details for N. vanduzeei remain poorly documented compared to better-studied congeners such as N. caprea and N. acuminatus.
Neocompsa
Neocompsa is a genus of longhorn beetles (Cerambycidae) established by Martins in 1965. It belongs to the tribe Tropidini within the subfamily Cerambycinae. The genus is part of the diverse New World cerambycid fauna, with species occurring primarily in the Neotropical region.
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.
Neomallodon arizonicus
Neomallodon arizonicus is a species of longhorned beetle in the family Cerambycidae, subfamily Prioninae. Originally described by Casey in 1912 under a different name, it was later recognized as a distinct species by Skiles in 1978. The species is found in the southwestern United States and Mexico, with records from Arizona, New Mexico, and Oklahoma. It is among the larger species in the genus and is associated with oak woodland habitats, particularly Gambel oak (Quercus gambelii). Adults are attracted to prionic acid lures and exhibit distinctive searching behavior when attempting to locate pheromone sources.
Neoptychodes trilineatus
Fig Tree Borer
A flat-faced longhorn beetle in the subfamily Lamiinae, notable for its variable coloration and distinctive three longitudinal bands. Males are larger than females, reaching up to 35 mm. The common name "Fig Tree Borer" reflects its association with Ficus species.
Neoxoplus
Neoxoplus is a genus of longhorn beetles (Cerambycidae) established by Eya in 2019. It belongs to the tribe Trachyderini within the subfamily Cerambycinae. The genus appears to be recently described with limited published documentation. Based on its tribal placement, members likely exhibit characteristics common to Trachyderini, though species-level details remain sparse.