Additions to the British list of Megaselia Rondani (Diptera: Phoridae), including two new species, from the crowns of ancient pollarded trees

Among species trapped in the crowns of ancient pollarded trees in southern England are Megaselia russellsmithi Disney sp. n, M. velutinicavus Disney sp. n. and M. henrydisneyi Durska, which is a further addition to the British List. The hitherto unknown females of M. henrydisneyi, M. serrata (Wood) and M. speiseri Schmitz are described. M. gargarans Schmitz and M. basiturgida Disney & Durska are synonymised with M. crassipes (Wood) following recognition of an error in Schmitz's description of M. gargarans and of other confusions in the literature. [GRAPHICS]