Long-horned-beetles
Guides
Achrysonini
Achrysonini is a tribe of long-horned beetles (Cerambycidae) within the subfamily Cerambycinae. The tribe contains more than 20 genera and over 50 described species. Members are distributed primarily in the Americas, with some representation in Europe, Asia, and Africa. The tribe was the subject of recent taxonomic revision with an updated key to South American genera published in 2021.
Callimoxys
blood-necked longhorn (for C. sanguinicollis)
Callimoxys is a genus of long-horned beetles (Cerambycidae) in the tribe Stenopterini. The genus comprises eight extant species and one fossil species, distributed primarily in North America and Europe. Species are generally small to medium-sized cerambycids with slender bodies. The genus was established by Kraatz in 1863.
Megaderus
Megaderus is a genus of long-horned beetles (Cerambycidae) first described by Dejean in 1821. The genus contains at least two described species: Megaderus bifasciatus, distributed across North and Central America, and Megaderus stigma, found in South and Central America. Both species are classified within the subfamily Cerambycinae and tribe Trachyderini. The genus is represented by 352 observations on iNaturalist, indicating moderate documentation in citizen science records.
Megapurpuricenus
Megapurpuricenus is a monotypic genus of long-horned beetles in the family Cerambycidae, established by Eya in 2015. The sole described species, M. magnificus, is notable for its spectacular appearance and highly synchronized emergence pattern. Adults emerge en masse every three years for approximately two weeks following the first summer monsoon rains, creating a brief but intense reproductive window. The genus is endemic to a limited number of locations in the southwestern United States, where it develops as larvae in the trunks of living oak trees.
Pilostenaspis
Pilostenaspis is a genus of long-horned beetles (Cerambycidae) described by Eya in 2015. The genus contains at least three species distributed in North America. These beetles belong to the subfamily Cerambycinae and tribe Trachyderini, a group known for often robust and frequently patterned species.
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.
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.
Scaphinus
Scaphinus is a monotypic genus of long-horned beetles (Cerambycidae) established by LeConte in 1851. The genus contains a single described species, Scaphinus muticus. It belongs to the subfamily Spondylidinae and tribe Spondylidini. The genus is represented by limited observational records.
Trachyderini
Trachyderini is a tribe of long-horned beetles (Cerambycidae: Cerambycinae) comprising at least 140 genera and 650 described species. Members are predominantly diurnal, medium to large-sized, and frequently exhibit bright coloration. The tribe has a primarily New World distribution, with notable diversity in southwestern North America, Mexico, Central America, and South America, though some genera extend into the Palearctic region including Mongolia. Several genera display striking mimicry of wasps or other beetles.