Corynoptera irmgardis, (LENGERSDORF, 1930)

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 : 76-77

CORYNOPTERA IRMGARDIS (LENGERSDORF, 1930)

Synonym: subtilissima (Frey, 1948) .

Literature: Freeman (1983b): 37 [as Bradysia subtilis , misidentification]; Freeman (1987): 199; O’Connor & Ashe (1991): 29 [as Bradysia subtilis , misidentification]; Laurence (1994): 118 [ Corynoptera irmgardis and in part as Bradysia subtilis , misidentification]; Laurence (1997b): 228 [as Bradysia subtilis , misidentification]; Menzel (1998): 21 [as Corynoptera irmgardis and in part as Corynoptera subtilis ]; Withers (2002): 114.

Material examined: Blaen y Wergloedd , Conwy, 1 male, 13.x.1988, Holmes, Boyce & Reed leg. ( PPWM) . Bohernabreena, Dublin , 1 male, 14.vi.1978, Ashe leg. ( NMID) . Bolt Wood, Stockerston , Leicestershire, 2 males, 4 females, 24.viii.2003, Menzel & J.E. Smith leg. ( DEI, HRI) . Braedownie , Angus, 1 male, 24.vii.1937, Coe leg. ( BMNH) . Brancaster , Norfolk, 3 males, 17.vi.−1.vii.1988; 9 males, 1.vii.−15.vii.1988; 7 males, 2.ix.−16.ix.1988; 11 males, 28.x.1988, all Foster & Procter leg. ( PBLN) ; 10 males, 2.ix.−16.ix.1988; 4 males, 28.x.1988, all Laurence leg. ( PBLN) . Brandon Marsh, Ryton-on-Dunsmore, West Midlands , 1 female, 12.x.2001, J.E. Smith leg. ( HRI) ; 12 males, 5 females, 22.viii.2002, Menzel & J.E. Smith leg. ( DEI, HRI) . Bucklebury Common, Berkshire , 1 male, 30.viii.1993, Chandler leg. ( PPCM) . Charleville Wood, Offaly , 1 male, 15.vi.1985, Chandler leg. ( PPWM) . Clowes Wood , Warwickshire, 1 male, 19.iv.1987, Withers leg. ( PPWM) . Coed Tycanol , Pembrokeshire, 4 males, 29.vi.−7.ix.1999, Levey & Pavett leg. ( HRI) . Colwyn Brook , Powys, 2 males, 18.vii.1989, Holmes, Boyce & Reed leg. ( PPWM) . Coombe Abbey Country Park , Coventry, Warwickshire, 2 males, 28.viii.2003, Menzel leg. ( DEI) . Cors Erddreiniog , Isle of Anglesey, 2 males, 6.x.1988, Holmes, Boyce & Reed leg. ( PPWM) . Cors Farlais, Carmarthen , 2 males, 13.vii.1989; 1 male, 29.vii.1989, all Holmes, Boyce & Reed leg. ( PPWM) . Cors Geirch , Gwynedd, 4 males, 15.vii.1988; 3 males, 7.x.1988, all Holmes, Boyce & Reed leg. ( PPWM) . Cors Goch , Isle of Anglesey, 1 male, 2.vii.1989, Holmes, Boyce & Reed leg. ( PPWM) . Cors Graianog , Gwynedd, 1 male, 28.vii.1988; 1 male, 13.x.1988, all Holmes, Boyce & Reed leg. ( PPWM) . Cors Gyfelog , Gwynedd, 1 male, 19.x.1988, Holmes, Boyce & Reed leg. ( PPWM) . Cors Penally , Pembrokeshire, 1 male, 22.vii.1987; 1 male, 30.ix.1987, all Holmes, Boyce & Reed leg. ( PPWM) . Dyffryn Gwaun , Pembrokeshire, 1 male, 28.ix.1987, Holmes, Boyce & Reed leg. ( PPWM) . East Trewent Wood , Pembrokeshire, 1 male, 12.vii.1986, Chandler leg. ( PPCM) . Gearagh, Cork , 2 males, 1 female, 9.iii.1990; 3 males, 26.iv.1990; 2 males, 22.v.1990; 1 male, 26.ix.1990, all de Courcy Williams leg. ( DEI, NMID) . Hafod Garregog , Gwynedd, 1 male, 26.vii.1988, Holmes, Boyce & Reed leg. ( PPWM) . Hay Wood, Baddesley Clinton, Solihull, West Midlands , 1 male, 25.viii.2002, Menzel leg. ( DEI) . Hickling , Norfolk, 4 males, x.1988, Foster & Procter leg. ( PBLN) . How Hill , Norfolk, 1 male, 24.vi.1990, Withers leg. ( PPWM) . Ickenthwaite , Cumbria, 1 male, 18.vi.1999, Chandler leg. ( PPCM) . Langstone , Monmouthshire, 1 male, 21.vii.1988, Holmes, Boyce & Reed leg. ( PPWM) . Lea Meadows, Newtown Linford , Leicestershire, 1 male, 24.viii.2003, Menzel leg. ( DEI) . Leebotwood , Shropshire, 1 female, 14.vii.2003, J.E. Smith leg. ( HRI) . Llangloffan Fen , Pembrokeshire, 1 male, 27.vi.1987, Holmes, Boyce & Reed leg. ( PPWM) . Llyn Gwynllyn , Powys, 1 male, 9.x.1989, Holmes, Boyce & Reed leg. ( PPWM) . Loch Park , Moray, 1 male, 12.viii.− 14.viii.1937, Coe leg. ( BMNH) . Low Pasture, Hawnby , North Yorkshire, 1 male, 12.x.1990, Chandler leg. ( PPCM) . Magor Marsh , Monmouthshire, 1 male, 28.ix.1988, Holmes, Boyce & Reed leg. ( PPWM) . Mid Yell , Shetland, 1 male, 25.v.1987, Laurence leg. ( PBLN) . Narborough Bog, Whetstone , Leicestershire, 2 males, 24.viii.2003, J.E. Smith leg. ( HRI) . New Forest , Hampshire, 1 male, vii.1905, Sharp leg. ( BMNH) . Oxwich , Swansea / Abertawe, 1 male, 4.x.1989, Holmes, Boyce & Reed leg. ( PPWM) . Perry West Wood , Cambridgeshire, 2 males, 17.iv.1975, J.H. Cole leg. ( PJCB) . Pinner, Greater London , 1 male, 14.ix.1912, Edwards leg. ( BMNH) . Ross Island, Killarney, Kerry , 2 males, 11.vii.1990, Withers leg. ( PPWM) . Ryton Wood, Bubbenhall, Coventry, West Midlands , 27 males, 7 females, 25.viii.2002, Menzel & J.E. Smith leg. ( DEI, HRI) . St. David’s Airfield , Pembrokeshire, 1 male, 12.x.1987, Holmes, Boyce & Reed leg. ( PPWM) . Sedlescombe , East Sussex, 1 male, 21.ix.1996; 1 male, 19.v.1999, all Roper leg. ( PPRS) . Sned Wood, Lower Lye , Herefordshire, 2 males, 1 female, 14.vii.2003, J.E. Smith leg. ( HRI) . Waun Isaf , Pembrokeshire, 1 male, 28.ix.1987, Holmes, Boyce & Reed leg. ( PPWM) . West Harling Common , Norfolk, 1 male, 17.iv.1987, Withers leg. ( PPWM) . Wolford Wood, Moreton-in-Marsh , Warwickshire, 1 male, 3 females, 11.x.2001, J.E. Smith leg. ( HRI) . Woodwalton Fen , Cambridgeshire, 1 male, 24.v.1940, Edwards leg. ( BMNH) . Wytham Woods, Wytham , Oxfordshire, 3 males, 21.viii.2002, Menzel leg. ( DEI) . Yell , Shetland, 1 male, 3.ix.−10.ix.1990, Laurence leg. ( PBLN) .

Ecological notes: very common in broad-leaved and carr woodland; also found in mixed woodland and conifer plantation; damp and wet heathland; wetlands including water meadows, fens, reed beds, basin mires and bogs; grazed grassland; former gravel workings; vegetation beside reservoir. iii–x.