Cratyna, WINNERTZ, 1867

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 : 87-88

CRATYNA ( PEYERIMHOFFIA ) PERNICIOSA

( EDWARDS, 1922)

Literature: Edwards (1922): 160; Edwards (1925a): 543; Madwar (1937): 50; Freeman (1983a): 169 [all as Plastosciara ]; Freeman (1983b): 25 [as Plastosciara (Termitosciara) ]; Menzel (1998): 21; Menzel & Mohrig (2000): 288.

Material examined: Charing Cross, Greater London , 4 females, ix.1933; 2 females, ii.1934, all no collector detail ( BMNH) . Glasshouse Crops Research Station, Littlehampton , West Sussex, 1 male, 17.xii.1956, Hussey leg. ( HRI) . Hoddesdon , Hertfordshire, 2 females, 15.ix.1922, Speyer leg. ( HRI) . Natural History Museum, South Kensington, Greater London , 1 female, 2.ix.1926, Edwards leg. ( BMNH) . Nottingham, Nottinghamshire, 18 females, iii.1934 ; 1 female, 18.xi.1935, all H.P. Jones leg. ( BMNH) . Slough, Berkshire , 2 males, 3 larvae, 24.vii.1941, Rochford leg. ( HRI) ; 5 males, 2 females, 2 pupae, 29.vii.1941, Speyer leg. ( HRI) . Worthing , West Sussex, 6 males, 19 females, 25.v.1922 (reared), Speyer leg. [including lectotype and paralectotypes of Plastosciara perniciosa ] ( BMNH) ; 1 male, 1 female, 2.vi.1922, Speyer leg. ( HRI) . Woodwalton Fen , Cambridgeshire, 35 males, vi.1940, Edwards leg. ( BMNH) .

Ecological notes: found in alder carr and fen; grounds of horticultural research station; glasshouses; office buildings. Reared from cucumber; birch log with ants Myrmica ruginodis . ii–iii, v–vii, ix, xii.