Cabbage root-fly (delia radicum). Large numbers of this small fly, whose larvae feed on the roots of brassicas and oilseed rape, are often seen out of doors, basking on light coloured surfaces in warm humid weather.(24 April 2005)
Species Archive: Delia radicum
Permanent link to this article: http://www.radleyvillage.org.uk/nature-post/cabbage-root-fly/
