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. Adults and larvae are found under dead bark, where they feed on fungi. Currently recognized species are:
Placonotus africanus LefkovitchPlaconotus arizonensis ThomasPlaconotus bolivari GrouvellePlaconotus debanus MukhopadhyayPlaconotus decoratus GrouvellePlaconotus dolce LefkovitchPlaconotus donacioides WollastonPlaconotus ealaensis LefkovitchPlaconotus embuensis ThomasPlaconotus exornatus GrouvellePlaconotus falinorum ThomasPlaconotus gladiator ThomasPlaconotus granulatus WollastonPlaconotus himalaicus Mukhopadhyay & Sen GuptaPlaconotus infimus SharpPlaconotus keralicus Mukhopadhyay & Sen GuptaPlaconotus macrognathus ThomasPlaconotus majus LefkovitchPlaconotus maya ThomasPlaconotus mestus LefkovitchPlaconotus modestus SayPlaconotus mossus LefkovitchPlaconotus nitens LeContePlaconotus orientalis GrouvellePlaconotus pallentipennis ReitterPlaconotus patruelis ThomasPlaconotus planifrons ThomasPlaconotus politissimus WollastonPlaconotus proximus GrouvellePlaconotus pseudomodestus ThomasPlaconotus pseudoproximus Mukhopadhyay & Sen GuptaPlaconotus rigidus OlliffPlaconotus saudicus SlipinskiPlaconotus subgranulatus GrouvellePlaconotus subtestaceus GrouvellePlaconotus subtruncatus LefkovitchPlaconotus tastus LefkovitchPlaconotus testaceus FabriciusPlaconotus torsus Mukhopadhyay & Sen GuptaPlaconotus zimmermanni LeConteThe genus has been treated taxonomically for several geographical regions: the New World; Africa; Europe; and India. The Asian, Pacific, and Australian faunas have not been worked and there are probably many unnassigned and undescribed species.
