Some field observations on three uncommon hoverflies - Doros profuges (Harris), Microdon mutabilis (L.) and Cheilosia chrysocoma (Mg.) (Dip.: Syrphidae) in Lancashire, 1991-1996
Published in Entomologist's Record and Journal of Variation, in 1996, in volume 108, issue 11-12, pages 311-312
Date published:1996