THE DIPTERA OF THE BRISTOL DISTRICT. 71 
Oryyma luctuosum (Mg\) Clevedon and Weston. Common. 
Helomyzid^ — 
Helomyza rufa (Fin.) \ 
,, variegata (Lw.) 
affinisiMg.) i V.R.P. 
pallida (Fin.) 
,, ustulata (Mg\) J 
Blepharopttra serrata (L.) S.M. 
Jiavicomis (Lw.) Nailsea, June. 
Heteromyza commixta (Coll.) S.M., March. 
Heteroneura albimana (Mg\) Freshford, May. Bred from pupae 
found in burrows of Crabro. 
Phceomyia fuscipennis ( M g\ ) S . M . , M ay. 
SCIOMYZID^ 
Dryomyza flaveola (F.) S.M., May and June. 
Neottiophilum prceustum (Mg\) V.R.P. 
Neuroctena anilis (Fin.) S.M., June ; has been found in Cossus bur- 
rows in decayed trees. 
Sciomyza albocostata (Fin.) V.R.P. 
cinerella (Fin.) S.M., September, Selsley (Wainwright). 
Tetanocera data (F.) Selsley (Wainwright). 
sylvatica (Mg\) V.R.P. 
ferruginea (Mg\) Minehead (Blathwayt). 
coryleti (Scop.) S.M., May. 
,, imnctulata (Scop.) S.M. and Redland. 
Limnia unguicornis (Scop.) S.M., July; Selsley (Wainwright). 
rufifrons (F.) S.M., July. 
obliterata (F.) Freshford, July, and C.J. W. 
Elgiva albiseta (Scop.) Freshford, July. 
,, cucularia (L.) Minehead (Blathwayt) 
Sepedon sphegeus (F.) V.R.P. 
,, spinipes (Scop.) V.R.P. 
,, heffneri (Fal.) Minehead (Blathwayt). 
PSILID^ — 
Psila fimetaria (L.) Freshford and Redland, also V.R.P. 
,, atra (Mg.) S.M , May. 
,, rosce (F.) S.M., May. 
Chyliza leptogaster (Pz.) Selsley (Wainwright). 
Loxocera albiseta (Sch.) Bristol, May, and V.R.P. 
MlCROPEZID^E 
Micropeza corrigiolata (L.) Redland, July, and V.R.P. 
