Secondary-beetle
Guides
Hylurgops palliatus
Hylurgops palliatus is a bark beetle in the family Curculionidae that colonizes coniferous trees, primarily spruce (Picea) and pine (Pinus) species. It is a secondary bark beetle, meaning it attacks weakened, dying, or recently dead trees rather than healthy ones. The species uses host-specific monoterpene chemical cues to locate and select appropriate host trees. It vectors various fungi, including ophiostomatoid species, which play roles in its ecology and tree colonization.
Pseudips
Pseudips is a genus of bark beetles in the family Curculionidae, subfamily Scolytinae. The genus includes species native to western North America and Central America that primarily attack pine trees (Pinus species). The best-documented species, Pseudips mexicanus, is a secondary bark beetle that colonizes stressed or weakened pine hosts. Research on this species in British Columbia has documented its polygynous mating system and univoltine life cycle in northern populations.