166 BR. J. ENT. NAT. HIST., 7: 1994 



(b) 28 species of snail-killing flies (Sciomyzidae) found at Dinton Pastures, with 

 comments on their biology. In addition to the 3 notable species exhibited by Ian 

 McLean in 1992, Pherbellia griseola (Fall.), Colobaea bifasciella (Fall.) and Pteromicra 

 pectorosa (Hendel) were found in 1993; all 6 notable species were found by Mungell's 

 Pond which supports at least 13 species of the family. 



(c) Homoneura biumbrata (Lowe) (Lauxaniidae), new to Britain from Dinton 

 Pastures: male, 23. v and both sexes, 31.vii, on sallows of small copses on Mortimer's 

 Meadow (females had been found at Brent Reservoir, Middlesex, 22. vi. 1991 but 

 hitherto confused with H. tesquae); also shown H. subnotata Papp and H. 

 thalhammeri Papp collected with it on 3 1 .vii; larvae of this genus mine decaying leaves 

 of trees, especially sallows and poplars. 



(d) Sphaeromias pictus (Meig.) (Ceratopogonidae), new to Britain from Old Slade 

 woods, Bucks., 4.viii.l977 and Old Buckenham Fen, Norfolk, 11. vii. 1993; also found 

 at Runnymede ponds, Surrey. The two known British species also exhibited. 



(e) Dynatosoma thoracicum Zett. sensu Landrock (Mycetophilidae), second British 

 specimen, female from Bucklebury Common, Berks., 6.vi.l993; a male was found 

 at the same site by Alan Stubbs, 12. vii. 1989; it is very distinctive, entirely orange- 

 bodied with brown-banded wings, but species group needs revision before formal 

 admission to British list. 



Godfrey, A. — A selection of uncommon flies collected in 1993. Ctenophora 

 flaveolata (F.) (Tipulidae), Bix Bottom, Oxon, 13.iv, male on beech trunk; 

 Odontomyia angulata (Panz.), Stratiomys singularior (Harris) (Stratiomyidae) and 

 Eutolmus rufibarbis (Meig.) (Asilidae), Thompson Common, Norfolk, 6. vii; 

 Hybomitra expollicata (Pand.) (Tabanidae), Iwade Marshes, Kent, 24. vi; Villa modesta 

 (Meig.) (Bombyliidae), Holkham dunes, Norfolk, 8. vii; Lejops vittata (Meig.) 

 (Syrphidae), Iwade Marshes, 24. vi; Myopites eximia Seguy (Tephritidae), The Swale, 

 Isle of Sheppey, Kent, 25. vi; Geomyza breviseta (Czerny) (Opomyzidae), in tussocky 

 grassland at Dunstable, Beds., 6.x; Stenomicra delicata (Collin) (Aulacigastridae), 

 on Carex paniculata L., Barnby Marshes, Suffolk, 7. vii; Aecothea praecox Loew 

 (Heleomyzidae), in rabbit holes at several sites, shown from Risby Warren, Lines., 

 29. vi; Siphonella oscinina (Fall.) (Chloropidae), Brentwood, Essex, 16.viii; Dicraeus 

 scibilis Collin (Chloropidae), The Swale, Isle of Sheppey, 25. vi, frequent in brackish 

 ditches in 1993; Trixoscelis marginella (Fall.) (Trixoscelidae), inland sandy path, 

 Rauceby Warren, Lines., 20. vi. 



Halstead, A. — Some local species found in 1993: Oxycera morrisii Curt. 

 (Stratiomyidae), wet meadow at Hoe Rough, near Beetley, Norfolk, 6. vii; Atylotus 

 latistriatus (Brauer) (Tabanidae), sand dunes, Holkham Bay, Norfolk, 7. vii; Ogcodes 

 pallipes Lat. (Acroceridae), edge of meadows north of Calthorpe Broad, Norfolk, 

 8. vii; Xylophagus ater Meig. (Xylophagidae), in copula on beech trunk, Abinger 

 Rough, Surrey, 12. vi; Choerades marginata (L.) (Asilidae), Foxley Wood, Norfolk, 

 6. vii; Myopa tessellatipennis Mots. (Conopidae), ride of chalk woodland at Therfield 

 Heath, near Royston, Herts., 4. v.; Melieria picta (Meig.) (Otitidae), saltmarsh near 

 Titchwell RSPB Reserve, Norfolk, 7. vii; Icterica westermanni (Meig.) (Tephritidae), 

 Sandford Lake, Dinton Pastures, Berks., 25. vii; Urophora solstitialis (L.) (Tephritidae), 

 on Carduus nutans L. near Hopton Fen, Suffolk, 11. vii; Pherbellia griseola (Fall.) 

 (Sciomyzidae), Upton Broad Fen, Norfolk, 10. vii; Sciomyza simplex Fall., Catfield 

 Fen, Norfolk, 8. vii; Dichetophora finlandica Verbeke (Sciomyzidae), near fresh water 

 lake on Kenfig Burrows, Glam., 27. iv; Ornithomyia avicularia (L.) (Hippoboscidae), 

 on collector's arm, Royal Horticultural Society Gardens at Wisley, Surrey, 23. vi. 



Hodge, P. J. — Flies found in Sussex in 1993: Pelecocera tricincta Meig. 

 (Syrphidae), St Leonard's Forest, West Sussex, 31. vii, swept off Molinia in heathy 



