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''Placonotus'' is a genus of beetles in the family Laemophloeidae. There are 40 currently recognized species, known from all continents except Antarctica. ''Placonotus'' species are small (~2mm), elongate, flattened beetles, characterized by long filiform antennae, presence of a frontoclypeal suture, open anterior coxal cavities, and broadly rounded intercoxal process of abdominal ventrite III. Males have the 8th abdominal segment modified to form claspers used during mating.〔Thomas, M.C. 1984. A revision of the New World species of ''Placonotus'' Macleay (Coleoptera: Cucujidae: Laemophloeinae). Occasional Papers of the Florida State Collection of Arthropods 3:vii + 28pp.〕 Adults and larvae are found under dead bark, where they feed on fungi. Currently recognized species are: * ''Placonotus africanus'' Lefkovitch * ''Placonotus arizonensis'' Thomas * ''Placonotus bolivari'' Grouvelle * ''Placonotus debanus'' Mukhopadhyay * ''Placonotus decoratus'' Grouvelle * ''Placonotus dolce'' Lefkovitch * ''Placonotus donacioides'' Wollaston * ''Placonotus ealaensis'' Lefkovitch * ''Placonotus embuensis'' Thomas * ''Placonotus exornatus'' Grouvelle * ''Placonotus falinorum'' Thomas * ''Placonotus gladiator'' Thomas * ''Placonotus granulatus'' Wollaston * ''Placonotus himalaicus'' Mukhopadhyay & Sen Gupta * ''Placonotus infimus'' Sharp * ''Placonotus keralicus'' Mukhopadhyay & Sen Gupta * ''Placonotus macrognathus'' Thomas * ''Placonotus majus'' Lefkovitch * ''Placonotus maya'' Thomas * ''Placonotus mestus'' Lefkovitch * ''Placonotus modestus'' Say * ''Placonotus mossus'' Lefkovitch * ''Placonotus nitens'' LeConte * ''Placonotus orientalis'' Grouvelle * ''Placonotus pallentipennis'' Reitter * ''Placonotus patruelis'' Thomas * ''Placonotus planifrons'' Thomas * ''Placonotus politissimus'' Wollaston * ''Placonotus proximus'' Grouvelle * ''Placonotus pseudomodestus'' Thomas * ''Placonotus pseudoproximus'' Mukhopadhyay & Sen Gupta * ''Placonotus rigidus'' Olliff * ''Placonotus saudicus'' Slipinski * ''Placonotus subgranulatus'' Grouvelle * ''Placonotus subtestaceus'' Grouvelle * ''Placonotus subtruncatus'' Lefkovitch * ''Placonotus tastus'' Lefkovitch * ''Placonotus testaceus'' Fabricius * ''Placonotus torsus'' Mukhopadhyay & Sen Gupta * ''Placonotus zimmermanni'' LeConte The genus has been treated taxonomically for several geographical regions: the New World;〔 Africa;〔Lefkovitch, L.P. 1962. A revision of African Laemophloeinae (Coleoptera: Cucujidae). Bulletin British Museum of Natural History (Entomology) 12:167-245.〕 Europe;〔Lefkovitch, L.P. 1959. A revision of European Laemophloeinae (Coleoptera: Cucujidae). Transactions of the Royal Entomological Society of London 111:95-118.〕 and India.〔Mukhopadhyay, P., and T. Sen Gupta. 1977. Studies on ''Placonotus'' (Coleoptera: Cucujidae: Laemophloeinae) from India. Oriental Insects 11: 555-566.〕 The Asian, Pacific, and Australian faunas have not been worked and there are probably many unnassigned and undescribed species. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Placonotus」の詳細全文を読む スポンサード リンク
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