Mass invasion to human dwellings by Megaselia meconicera (Speiser, 1925) (Diptera, Phoridae) in winter in Kansai district

Abstract

We observed mass invasion to human dwellings by Megaselia meconicera (Speiser, 1925) in the western part of Japan in winter from October, 1996 to February, 1997. Such invasion was mainly found in dwellings situated near forests. We briefly summarize morphological characters and biology of M. meconicera. Similar invasion was also reported from Europe.