Cratyna (Cratyna), (CRATYNA)

Menzel, Frank, Smith, Jane E. & Chandler, Peter J., 2006, The sciarid fauna of the British Isles (Diptera: Sciaridae), including descriptions of six new species, Zoological Journal of the Linnean Society 146 (1), pp. 1-147 : 85-86

CRATYNA (CRATYNA) AMBIGUA (LENGERSDORF, 1934)

Synonyms: latiforceps (Bukowski & Lengersdorf, 1936) ; lignea (Lengersdorf, 1941) ; prima (Frey, 1942) .

New to British list. Material examined: Bevills Wood , Abbot’s Ripton , Cambridgeshire, 1 male, 8.vi.1980, J.H. Cole leg. ( PJCB) . Bix Bottom , Oxfordshire, 1 male, 23.ix.2000, Raper leg. ( PDGB) . Bradfield Wood , Suffolk, 2 males, 23.v.−30.v.1991, Laurence leg. ( PBLN) . Bridge of Walls , Shetland, 1 male, vii.1985, Laurence leg. ( PBLN) . Burnham Beeches , Buckinghamshire, 1 male, 26.ix.−9.x.1996; 1 male, 1.vi.−8.vi.1999, all Ismay leg. ( PPCM) . Coed Tycanol , Pembrokeshire, 2 males, 29.vi.−7.ix.1999, Levey & Pavett leg. ( HRI, PPCM) . Milham Ford School, Oxford , Oxfordshire, 1 male, 18.v.2001, Webb leg. ( PPCM) . Roydon Common , Norfolk, 1 male, 5.vi.1993, Chandler leg. ( PPCM) . Sutton Common , Dorset, 1 male, 17.v.−24.v.1990, George leg. ( PPCM) .

Ecological notes: found in ancient beech and other broad-leaved woodland; mixed woodland on clay; ancient beech woodland; school grounds with old poplars; calcareous grassland. v–vii, ix–x.