42 



SYEPHID^. 



3rd joint ovate, but varying to circular, oblong or angular ; arista 

 dorsal, bare or slightly pubescent, nearly basal. Thoracc squarish 

 or oblong, broader across the middle, the distinct pubescence more 

 bristly towards sides, scutellum normal. Abdomen oblong or 

 elongate-oval, sometimes short, generally longer than thorax ; 

 segments subequal except the very short ultimate one ; genitalia 

 small. Legs simple, but sometimes providing specific characters. 



Fig. 11. — Chilosia s)i., head in Fig. 12.— ChUosia sp., head in 



profile, proboscis retracted. profile, proboscis extended. 



Wings as in Syrphus, in life folded over abdomen or slightly 

 expanded ; squamae with long fringe. 



Life-history. Larvae reputed to live in fungi, and the stems and 

 roots of plants. 



Range. Europe, North Africa, Gaboon, Asia, Tasmania, North 

 America. 



Chilosia consists of moderate-sized, rather shining, blackish flies 

 frequenting bushes and undergrowth, rather sluggish in habits but 

 with a quick flight. 



Tahle of Species. 



1. Wiug-tip broadly brownish 2. 



Wings uniformly pale grey 3. 



2. Tibiae with narrow black median ring, more or 



less indistinct on front pair : length 7^ mm. apicalis, Brun., p. 43. 

 Tibiae without such baud : length 11 mm .... pilipes, Big., p. 43. 



3. Abdomen shining plumbeous, with transverse [p. 44. 



black bands , jjluinbiventris, Brun , 



Abdomen black, with plumbeous tinge 4. 



4. Third abdominal segment with black liairs 



only ; remaining segments with yellow pubes- [p. 45. 



cence hirticincta^ Brun., 



Abdominal pubescence wholly yellowish-grey, nigroanea, Brun., 



[p. 45. 

 The eyes are pubescent in all the above species. 



