Plaesius javanus, the Jepson's beetle, is a species of clown beetles belonging to the family Histeridae.Catalogue of life
Description Plaesius javanus can reach a length of about . These beetles have a glossy black body, with long and curved jaws and short antennae. Frontlegs are thin and expanded laterally. Elytra show 4–6 longitudinal grooves. Two abdominal rear segments are exposed.Museum Hokudai
These predatory histerid beetles have been introduced in some countries for the control of the banana weevil borer (Cosmopolites sordidus).Cook Islands Biodiversity Database
Distribution This species is native to Southeastern Asia and Indonesia.
Bibliography Mazur, Slawomir (1997) A world catalogue of the Histeridae (Coleoptera: Histeroidea), Genus, International Journal of Invertebrate Taxonomy (Supplement)(1996), database, NODC Taxonomic Code Ôhara, Masahiro, and Slawomir Mazur (2000) A revision of the genera of the tribe Platysomatini (Coleoptera, Histerida, Histerinae). Part 3. Redescriptions of the type species of Althanus, Caenolister, Idister, Diister, Placodes, Plaesius, Hyposolenus and Aulacosternus. Insecta Matsumurana (N.S.), vol. 57
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