THE DIPTERA OF THE BRISTOL DISTRICT. 
67 
Macguartia tenebricosa (Mgr.) 1 0 i i wt • • 
chalconotus( )} Selsley (Wainwright). 
Rhychista prolixa (Mg\) Selsley (Wainwright). 
Ptilops chalybeata (Mgr.) Selsley (Wainwright). 
Hyalomyia pusilla (Mgr.) Selsley (Bradley). 
Oliveria lateralis (F.) Cheddar, S.M., Bristol, common. A spiny 
black fly, with hairy eyes, and the upper half of abdomen orange 
red. 
Micropalpus vulpinus (Fin.) Cheddar, September, and V.R.P. 
Erigone radicum (F.) Redland, August. 
rudis (Fin.) V.R.P. 
Echinomyia grossa (L.) Dundry. 
fera (L.) Common on Thistle blooms, Leigh Woods. 
,, ferox CL..) Wellington (Blathwayt). 
Servillea ursina (Mg.) Leigh Woods, June, rare. A large fly, 
covered with a dense coat of long silky hairs, as well as spines. 
Plac/ia nivalis (Fin.) ) , , • ■ , , v 
„ trepida (Mg.) / Selsle y (Wa > nw r lg ht). 
Siphona geniculate, (Deg.) S.M. and Bristol, common in May. 
,, cristate (F.) Bristol, July. 
These two species are easily distinguished by their ' elbowed ' 
proboscis. The front part shutting back like the blade of a 
penknife. 
Alophora hemiptera (F.) Chalfont (Wainwright). I have taken this 
rare and curious insect, which resembles an Hemipteron on 
account of its broad flattened abdomen, in North Devon. 
Trixa cestroidea (Dsv.) Selsley (Wainwright). 
Phyto melanocephala (Mg.) Selsley (Wainwright). 
Melanophora roralis (L.) Redland and Taunton in June. 
,, atra (Mcq ) Fairly common in the University garden, 
Bristol ; also at Bitton, and C.J.W. 
These two are small, intensly black and bristly flies. 
Brachycoma erratica (Mg.) Painswick, C.J.W., described as new to 
Britain in E.M.M., 1893. 
Sarcophagus — A sub-family of the Tachinidce. They include 
the common chequered grey and black ' flesh-flies,' they are all 
very bristly, and produce living larvae (ovo-viviparous). 
Cynomia mortuorum (L.) Gloucester (Merrin). 
Onesia sepulchralis (L.) Nailsea and Freshford, May to August. 
,, cognate (Mg.) Freshford and Leigh Woods, April ; also 
V.R.P. 
Sarcophaga carnaria (L.) Very common everywhere. 
,, albiceps (Mg.) Cheddar, July. 
,, atropos (Mg.) Keynsham and Cheddar, July ; also V.R.P. 
