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Thylodrias
''Thylodrias'' is a monotypic genus〔(''Thylodrias contractus'' (Motschulsky, 1839). ) Pest Insects of our Cultural Heritage. Centre Interdisciplinaire de Conservation et de Restauration du Patrimoine.〕 of beetles in the family Dermestidae containing the single species ''Thylodrias contractus'', known commonly as the odd beetle and tissue paper beetle. It is native to Asia and is a widespread introduced species in North America.〔Ebeling, W. (Chapter 8: Pests of Fabrics and Paper. ) ''Urban Entomology''. University of California, Riverside. 2003.〕 It can be a pest at times.
==Description==
''T. contractus'' is an elongate beetle with slender legs. The male can be recognized by its yellowish-brown elytra and covering of silky, white hairs. The abdomen has seven sternal segments and the antennae are filamentous rather than club-shaped, which distinguishes it from all other members of the Dermestidae.〔Arnett, R., et al. ''American Beetles''. CRC Press, New York, NY. 2002.〕〔Dillon, E. and L. Dillon. ''A Manual of Common Beetles of Eastern North America''. Row, Peterson and Company, Elmsford, New York. 1961.〕 The female looks very different from the male. It resembles a larva, and though it is free-living and has legs and antennae, it lacks elytra and hind wings.〔 The larva of the odd beetle resembles that of most other Dermestidae, but it lacks a tuft of hair at the posterior end and any long hairs along the dorsal surface. At the end of each segment of the body is a row of short bristles.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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