Tetropiini
Guides
Tetropium cinnamopterum
Eastern Larch Borer
Tetropium cinnamopterum is a native North American cerambycid beetle in the tribe Tetropiini. Adults are distinguished from the closely related T. parvulum by eye shape, scutellar structure, external genitalia, and pronotal puncture number; larvae are distinguished by urogomphi morphology. The species has been recorded from various conifer hosts, with larvae developing in conifer wood. It is transcontinental in Canada and occurs sympatrically with invasive T. fuscum in Atlantic Canada, where cross-attraction to the aggregation pheromone fuscumol may occur. Both sexes respond to (S)-fuscumol synergized by host monoterpenes and ethanol.
Tetropium parallelum
Tetropium parallelum is a species of longhorned beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the genus Tetropium, which comprises woodboring beetles primarily associated with coniferous trees. The species is recorded from western North America, including Alberta, Canada and the United States. Like other members of its genus, it likely develops in dead or dying conifer wood, though specific biological details remain poorly documented.
Tetropium schwarzianum
Tetropium schwarzianum is a species of longhorn beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the tribe Tetropiini and is closely related to T. cinnamopterum based on morphological examination of type specimens. The species occurs in eastern North America, with distribution records from Canada (New Brunswick, Newfoundland, Nova Scotia, Ontario). As with other Tetropium species, adults are likely associated with coniferous hosts, though specific host records for this species remain undocumented in available sources.
Tetropium velutinum
Western Larch Borer
Tetropium velutinum, commonly known as the Western Larch Borer, is a species of longhorn beetle in the family Cerambycidae. It was described by John Lawrence LeConte in 1869. The species is associated with coniferous forests of western North America, particularly with larch trees (Larix spp.) which serve as its larval host. Like other members of the genus Tetropium, adults are typically attracted to recently dead or dying host trees.