Lepturinae
Guides
Trigonarthris
flower longhorn beetles
Trigonarthris is a genus of flower longhorn beetles (Cerambycidae: Lepturinae) established by Haldeman in 1847. The name derives from Greek 'trigonon' (triangle) and 'arthron' (joint), referring to a triangular joint structure. The genus contains three recognized species: T. atrata, T. minnesotana, and T. proxima. Members are diurnal flower visitors, though individual species remain poorly documented biologically.
Trigonarthris atrata
flower longhorn
Trigonarthris atrata is a species of flower longhorn beetle in the family Cerambycidae. It is found in North America and has been documented in the south-central United States, particularly in Oklahoma. The species is considered relatively uncommon and is attracted to sweet red wine and ethanol-based traps.
Trigonarthris proxima
Proximal Long-horned Beetle
Trigonarthris proxima is a species of flower longhorn beetle in the family Cerambycidae. It is native to North America, with records from Canada including Manitoba, New Brunswick, Nova Scotia, and Ontario. The species was first described by Thomas Say in 1824 under the basionym Leptura proxima. It belongs to the subfamily Lepturinae, a group commonly known as flower longhorns due to their frequent association with flowers.
Typocerus
Flower Longhorns
Typocerus is a genus of longhorn beetles (Cerambycidae) in the subfamily Lepturinae, commonly known as flower longhorns. The genus contains approximately 15 described species distributed across eastern North America. Adults are diurnal and frequently observed feeding on flowers. Several species exhibit distinctive yellow or orange banding patterns on dark elytra, though identification to species level often requires careful examination of subtle morphological differences. The genus includes both common and rarely encountered species, with some pairs being notably difficult to distinguish in the field.
Typocerus acuticauda
Thin-tailed Longhorned Beetle
Typocerus acuticauda is a species of flower longhorn beetle in the family Cerambycidae, found in North America. It belongs to the subfamily Lepturinae, a group characterized by diurnal adults that visit flowers for feeding. The species was described by Casey in 1913 and includes two recognized subspecies: T. a. acuticauda and T. a. standishi. As with other Typocerus species, adults are likely attracted to flowers, though specific biological details remain poorly documented.
Typocerus acuticauda acuticauda
Typocerus acuticauda acuticauda is a subspecies of flower longhorn beetle in the family Cerambycidae. It belongs to the subfamily Lepturinae, a group characterized by diurnal adults that frequent flowers. The subspecies is part of a genus containing multiple similar-looking species that can be challenging to distinguish in the field. Information specific to this subspecies is limited in available sources.
Typocerus acuticauda standishi
Typocerus acuticauda standishi is a subspecies of longhorned beetle in the family Cerambycidae, subfamily Lepturinae. As a member of the 'flower longhorn' group, adults are diurnal and associated with flowers. The subspecies was described by Knull in 1938. Very little specific information is documented for this subspecies; most biological knowledge must be inferred from the species level or genus level.
Typocerus balteatus
flower longhorn
Typocerus balteatus is a species of flower longhorn beetle in the family Cerambycidae, first described by Horn in 1878. It is native to North America and has been documented in the southwestern United States, particularly in association with flowering plants in montane habitats. The species belongs to the subfamily Lepturinae, a group characterized by adults that frequently visit flowers for nectar and pollen.
Typocerus confluens
longhorn beetle
Typocerus confluens is a species of flower longhorn beetle in the family Cerambycidae, described by Casey in 1913. It belongs to the subfamily Lepturinae, characterized by their narrow-necked, broad-shouldered appearance and frequent association with flowers. The species exhibits considerable color variation, ranging from chestnut brown to nearly all black. It is considered a reasonably uncommon species in Missouri and has been documented in the central United States.
Typocerus deceptus
deceptive flower longhorn
Typocerus deceptus is a rare species of flower longhorn beetle in the family Cerambycidae, subfamily Lepturinae. Adults are diurnal and have been observed feeding on flowers of wild hydrangea (Hydrangea arborescens). The species is named for its close resemblance to the common and widespread T. velutinus, with which it frequently co-occurs on shared flower hosts. First described by Knull in 1929, it remains poorly known biologically, with larval hosts and immature stages completely undocumented.
Typocerus gloriosus
Typocerus gloriosus is a species of flower longhorn beetle in the family Cerambycidae, subfamily Lepturinae. It was described by Hopping in 1922. The species is found in North America. As a member of the Lepturinae, it is likely diurnal and associated with flowers as an adult, though specific biological details for this species remain poorly documented.
Typocerus lugubris
Mournful Long-horned Beetle
Typocerus lugubris is a species of flower longhorn beetle in the family Cerambycidae, subfamily Lepturinae. It is distinguished from other Typocerus species by its entirely black coloration without yellow markings. Adults are active during June and July and have been observed visiting flowers, including Hydrangea arborescens and Saururus cernuus, where they feed on pollen. The species occurs in eastern North America, with records from Missouri and surrounding regions.
Typocerus lunulatus
Typocerus lunulatus is a flower longhorn beetle in the family Cerambycidae, subfamily Lepturinae. Adults are diurnal and visit flowers for feeding. The species occurs in North America with two recognized subspecies: the nominate form and T. l. texanus (Texas stallingia beetle). It is one of several mostly black Typocerus species that can be distinguished from congeners by specific elytral markings.
Typocerus lunulatus texanus
Typocerus lunulatus texanus is a subspecies of flower longhorn beetle in the family Cerambycidae, described by Linsley and Chemsak in 1976. It belongs to the genus Typocerus, a group of beetles commonly associated with flowers where adults feed on pollen and nectar. The subspecies epithet "texanus" suggests a primary association with Texas and adjacent regions, though detailed biological information specific to this subspecies remains limited in published sources.
Typocerus octonotatus
Eight-spotted Flower Longhorn Beetle
Typocerus octonotatus is a species of flower longhorn beetle in the family Cerambycidae, occurring in North America. Adults are diurnal and frequently observed visiting flowers. The species is one of several common flower longhorns in the eastern United States and is often encountered on a variety of flowering plants during summer months.
Typocerus sparsus
flower longhorn
Typocerus sparsus is a species of flower longhorn beetle in the family Cerambycidae, described by LeConte in 1878. It is distributed across North America, with records from Canada (Manitoba, New Brunswick, Ontario, Québec) and the United States. As a member of the subfamily Lepturinae, it shares the characteristic diurnal activity and flower-visiting behavior of this group.
Typocerus velutinus
Banded Longhorn, Banded Longhorn Beetle
Typocerus velutinus is a common and widespread flower longhorn beetle (subfamily Lepturinae) found across eastern North America. Adults are diurnal and feed on flowers, while larvae develop in decaying wood of hardwood trees. The species is frequently encountered on wild hydrangea (Hydrangea arborescens) and other flowering plants during summer months. It serves as a pollinator and is an important component of forest ecosystem food webs. Two subspecies are recognized: T. v. velutinus and T. v. nobilis.
Typocerus velutinus nobilis
Typocerus velutinus nobilis is a subspecies of the flower longhorn beetle T. velutinus, belonging to the subfamily Lepturinae. Adults are diurnal and visit flowers for feeding. The species is part of a complex of similar-looking Typocerus species that can be difficult to distinguish in the field. Based on the parent species, adults likely have distinct transverse yellow elytral bands and a continuous band of dense yellow pubescence along the basal margin of the pronotum.
Typocerus zebra
Zebra Longhorn Beetle, Zebra Longhorn
Typocerus zebra, commonly known as the zebra longhorn or zebra longhorn beetle, is a species of flower longhorn beetle in the family Cerambycidae. Adults are diurnal and frequently observed on flowers, where they feed on pollen and nectar. The species is distributed across North America and is particularly associated with open habitats where its host flowers grow. Like other members of the subfamily Lepturinae, it exhibits elongated antennae and a slender body form adapted for floral visitation.
Xestoleptura
Xestoleptura is a genus of flower longhorn beetles in the family Cerambycidae, established by Casey in 1913. The genus contains approximately 10 species distributed primarily in North America. Members are classified within the subfamily Lepturinae and tribe Lepturini, a group commonly associated with visiting flowers for feeding and mating.
Xestoleptura tibialis
flower longhorn beetle
Xestoleptura tibialis is a species of flower longhorn beetle in the family Cerambycidae. It was originally described as Leptura tibialis by LeConte in 1850. The species is found across North America, with records from Canada including Alberta, British Columbia, Labrador, and Manitoba. As a member of the subfamily Lepturinae, it belongs to a group commonly known as flower longhorns that are frequently associated with flowering plants.
Xylosteini
Tribe Xylosteini is a small, primitive group of longhorn beetles (Cerambycidae: Lepturinae) containing rare forest-dwelling species. In Türkiye, the tribe comprises four species across two genera: Leptorhabdium (exclusively deciduous-feeding) and Xylosteus (feeding on both deciduous and coniferous trees). These beetles are considered forest pests of ecological and economic significance due to their wood-boring larval habits.