Key: Collin, J. E. (1944). The British species of Psilidae (Diptera). Entomologist’s Monthly Magazine, 81, 214–224.
Clemons, 2002 describes the habitat in detail
Psila luteola sp. n. M Closely resembling pallida (Fall.) but eyes of different shape, their vertical not greater than their horizontal diameter.
Third antennal joint smaller and narrower and brownish towards tip; arista with shorter pubescence, the longest hairs not so long as arista is stout at base.
Palpi often brownish at tip.
Abdomen often tawny-yellow. Crossvein closing discal cell further from wing-margin, the distance measured from lower corner being quite half length of crossvein.
Length about 4 mm.