Primary-attraction
Guides
Pseudohylesinus
Pseudohylesinus is a genus of crenulate bark beetles (family Curculionidae) comprising at least 20 described species. Members are small, slender beetles (approximately 2.8 mm length) associated with coniferous trees in western North America. The genus includes economically notable species such as the Douglas-fir hylesinus (P. nebulosus), which attacks Douglas-fir and related hosts. Species in this genus exhibit distinctive reproductive behaviors including acoustic signaling and primary attraction to host volatiles rather than pheromone-mediated aggregation.