Cucujus
''Cucujus'' is a genus of beetles in the family Cucujidae, the flat bark beetles. It contains 19 currently recognized species and subspecies. Description Species of ''Cucujus'' are of moderate size (6-25mm), greatly dorso-ventrally compressed, and brightly colored, often red or red and black. Additionally, they can distinguished from other members of the family by the head being generally wider than the pronotum with prominent temples, and the elongate, inverted male genitalia with a flagellum. The genus occurs throughout the Holarctic The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical reg ... region, with indigenous species in North America, Europe, and Asia. It is most diverse in Asia. Ecology The biology of most species in the genus is poorly known. All life stages live under dead bar ...
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