Trypophloeus
Tyrpophloeus is a genus of bark beetles. About 12 species comprise the genus, ranging from North America to Europe and Asia. The genus is little-known, but T. populi has recently become important as the causative agent of sudden aspen decline.
Other species' host are mainly poplars, willows and alders.
Partial species list
Trypophloeus alniTrypophloeus asperatusTrypophloeus bispinulusTrypophloeus discedensTrypophloeus klimeschi- Trypophloeus nitidus Swaine, 1912Trypophloeus populi Hopkins, 1915Trypophloeus striatulus Mannerheim, 1853Trypophloeus thatcheri''