72 
THE D1PTERA OF THE BRISTOL DISTRICT. 
Calobata petronella (L.) V.R.P. 
Loxodesma lacustris (Mg. ) V.R.P. 
Ortalid^ — Small flies, with spotted or barred wings, many of 
them very beautiful. Most of the larvae seem to be vegetable 
feeders. 
Darycera yraminum (F.) Withycombe (Slater). Horfield in June. 
Platysoma seminationis (F.) Nailsea and Freshford, June. 
Seoptera vibroMs (L.) Nailsea and Bristol. 
Ptilonota guttata (Mg\) Freshford, May. 
Pteropcectria f rondesnantice (L.) Bristol, July. 
,, nigrina (Mg. ) Cheddar, August. 
,, afflicta (MgJ S.M., August. 
Ceroxys jnctus (Mg.) St. Vincent's Rocks, Clifton (Curtis), and V.R.P. 
,, crassiformix (F.) V.R.P. 
Ulidia eryopthalma (Mg.) Redland, May, and V.R.P. 
Trypetid^e — Pretty little yellow and black flies, with spotted 
wings. 
Rhagoletis cerasi (L.) Very rare. One specimen University garden, 
Bristol, July. 
Acidia lychnidis (F.) V R.P. 
,, heraclii (L.) Bristol ; S.M. in May, frequent. 
Spilographa zoe (Mg'.) S.M. Common. 
Trypeta onot?'ophes (Liv.) S.M., August, and V.R.P. 
,, cornuta (F.) Bristol, and V.R.P. 
lappce (Cedj.) V.R.P. 
Urophora solsfAtialis (L.) Minehead (Blathwavt). 
cardui (L.) V.R.P. 
,, aprica (Fin.) Minehead (Blathwayt), and V.R.P. 
Sphe?iella marginata (Fin.) V.R.P. 
Tephritis bardanae (Sch.) Nailsea, June, and C.J.W. 
,, vespertina (Lw.) Bristol, June, and V.R.P. 
,, leontodonis (Deg.) V.R.P. 
Urellia cometa (Lw.) V.R.P. 
LoncH/EID^e — Small, shining dark blue or green flies. 
Lonofiea vaginelis (Fin.) Bristol, July, and V.R.P. 
chorea (F.) V.R.P. 
Palloptera ustulata (Fin.) S.M.. August. 
,, umbellatarum (F.) Nailsea, June, and V.R.P. 
saltuum (L.) V.R.P. 
arcuata (Fin.) V.R.P. 
