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.Süda, I. Trypophloeus Fairmaine in Estonia and neighbouring countries, Eesti Metsamajanduse ja Looduskaitse Institut, Estonia
Partial species list Trypophloeus alni Trypophloeus asperatus Trypophloeus bispinulus Trypophloeus discedens Trypophloeus klimeschi Trypophloeus nitidus Swaine, 1912 Trypophloeus populi Hopkins, 1915 Trypophloeus striatulus (also known as the willow bark beetle) Mannerheim, 1853 Trypophloeus thatcheri
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