HR. J. ENT. NAT. HIST., 7: 1994 



DlPTERA 



Alexander, K. N. A. & Foster, A. P.— A selection of flies found during the 

 National Trust's biological survey of North Wales in 1993. Oxycera morrisii Curt., 

 Pistyll Farm, Lleyn, 27.vii; O. nigricornis Ol., Erddig, 28. vi, new to Wak 

 pygmaea (Fall.), Mynydd Bychestyn, Lleyn, 13.vii; O. rara (Scop.), Big Wood, Erddig, 

 24. vi; O. trilineata (F.), Porth Gwylan, Lleyn, 15.vii; Vanoyia lenuicornis (Macq.), 

 Big Wood, Erddig, 24. vi, new to Wales (above all Stratiomyidae); Diociria oelandica 

 (L.) (Asilidae), Dolmelynllyn, Merioneth, 10. vi; Scenopinus niger (Deg.) 

 (Scenopinidae), Big Wood, Erddig, 24. vi; Microdon mulabilis (L.) (Syrphidae), 

 Dolmelynllyn, 9.vi; Oxyna nebulosa (Wied.) (Tephritidae), Penmachno, Caerns., 

 22.vii; Herina lugubris (Meig.) (Otitidae), moist soft rock cliffs on Lleyn; Pelidnopiera 

 fuscipennis (Meig.) (Phaeomyiidae), various woodland sites; Dictya umbrarum (L.) 

 (Sciomyzidae), Cregennan, 21. vi; Tetanocera punctifrons Rond. (Sciomyzidae), 

 Cregennan, 21. vi. 



Ball, S. & Morris, R. — An exhibit describing the current state of progress in the 

 Hoverfly Recording Scheme (Syrphidae). The database contains 181 ,000 records from 

 1992 10 km squares (out of 2850 containing land in Britain). A provisional atlas is 

 expected to be published by the Biological Records Centre in 1996. Examples of maps, 

 phenology and selected species accounts were shown, illustrated by photographs of 

 flies and their habitats. 



Bland, K. P. — (a) Cerodontha luzulae (Groschke) (Agromyzidae), recently 

 recognized as new to Britain, but proving widespread on Luzula sylvatica (Hudson) 

 Gaudin: Portmore, Peebles, collected 26.iii.1988, emerged 31. v. 1988; Aikieside Wood, 

 Ber., collected 3. hi. 1990, emerged 6.vi.l990. 



(b) Botanophila depressa (Stein) ( = Pegohylemyia oraria Collin), Malaclete, North 

 Uist, reared from Suaeda mahtima (L.) Dumort. collected 13.vii.1992, emerged 

 9-17.V.1993. 



Chandler, P. J.— (a) A selection of flies collected in 1993 at Dinton Pastures 

 Country Park, with a map of the Park to show the main habitats. Nigrotipula nigra 

 (L.) (Tipulidae), remnant water meadow at south end of Mortimer's Meadow, 26. \ i; 

 Sphaeromias fasciatus (Meig.) (Ceratopogonidae), common around lakes, v-vi; 

 Macrocera crassicornis Winn. (Keroplatidae), hedge south of Black Swan Lake. 2 1 .i\; 

 Megophtalmidia crassicornis (Curt.) (Mycetophilidae), on young alders, Tufty's 

 Corner, 23. v; Chorisops nagatomii Rozkosny (Stratiomyidae), on oaks south of Black 

 Swan Lake, 21.viii; Rhamphomyia lamellata Collin (Empididae), Sandford Copse, 

 31.vii; Epistrophe diaphana (Zett.) (Syrphidae), south end of Mortimer's Meadow . 

 26. vi; Euphranta toxoneura (Loew) (Tephritidae), on sallows in Sandford Copse. S.\ 

 and by River Loddon, 8.vi; Oxyna parietina (L.) (Tephritidae), between lakes I3.vi, 

 and the scarcer O. nebulosa (Wied.), same area, 22. vi. 1983; Trigonometopus frontalis 

 (Meig.) (Lauxaniidae), Mortimer's Meadow, 8.v; Astiosotna rufifrons Duda 

 (Asteiidae), at cold bonfire ash at edge of Sandford Copse, 2d.\i; Agromyza 

 ferruginosa Wulp (Agromyzidae), Mortimer's Meadow, 31.vii; Gaurax fast 

 (Becker) (Chloropidae), by river Loddon, 26. vi, S.viii; Norellia spinipes (Meig.) 

 (Scathophagidae), on sallows, Mortimer's Meadow, 7.vii; although its food plant 

 (Narcissus) is absent from the area; Piezura boletorum (Rond.) (Fanniidae), carr at 

 south end of Mortimer's Meadow, 17.vi; P. graminicola (Zett.), Sandford Copse. 

 31.vii, for comparison; Myopina myopina (Fall.) (Anthomyiidae), margin of Sandford 

 Lake, 15.viii; Botanophila gnava (Meig.) (Anthomyiidae), the lettuce seed fly, frequent 

 in Mortimer's Meadow, vi-vii, where Lactuca serriola L. is a possible food 

 plant. 



