DIPTERA FROM NEPAL 81 



Subgenus DORSILOPHA Sturtevant 

 Dorsilopha Sturtevant, 1942 : 28. 



Type-species : Drosophila busckii Coquillett, 1901 : 16 (N. America). 



Drosophila (Dorsilopha) busckii Coquillett 

 Drosophila busckii Coquillett, 1901 : 16 (N. America). 



Taplejung District, Sangu, from rotten Naspati fruits in traps, c. 6,200', 8-31. x. 

 1961, 15 (J, 12 $ ; ibid., from rotten bananas in traps, c. 6,200', x-xii.1961, 2 $ ; 

 below Sangu, by stream in shady ravine, c. 6,ooo', 30.x. 1961, 1 <$ ; river banks below 

 Tamrang Bridge, c. 5,500', x-xi.1961, 1 <£ (R.L.C.). 



Distribution : Nepal (new locality), India, Sumatra, Formosa, China, Japan, 

 Korea, Bonin Is., Australia, Africa, Europe, N. America, S. America. 



Subgenus SOPHOPHORA Sturtevant 

 Sophophora Sturtevant, 1939 : 139. 



Type-species : Drosophila melanogaster Meigen, 1830 : 85 (Europe). 



Key to Species 



1 Anterior reclinate orbital minute, one-fifth or less as long as posteriors, o* f° re l e g s 



without sex-combs. Mesonotum strongly convex . . mommai-group 2 



- Anterior reclinate orbital usually large, about one-third or more as long as posteriors. 



o" fore legs with sex-combs. Mesonotum usually not very convex 



melanogaster-group 4 



2 Palpus with only one prominent apical seta. Crossveins clear. Head much broader 



than thorax .......... coei (p. 82) 



- Palpus with a few prominent ventral setae. Crossveins clouded. Head as broad as 



thorax ............. 3 



3 Palpus black. Front glossy brown. Median sternopleural fine. Third abdominal 



tergite entirely black ......... zonaria (p. 83) 



- Palpus yellow. Front matt orange. Median sternopleural as long as anteriors. 



Third abdominal tergite not entirely black .... serriflabella (p. 84) 



4 Palpus with a few prominent ventral setae .... melanogaster (p. 92) 



- Palpus with a prominent apical seta ........ 5 



5 o* wings distally with a large black patch ........ 6 



- o* wings without black patch distally ........ 8 



6 Large distal black patch of <$ wing not extending to the wing tip. Small black 



patches at wing base ........ pulchrella (p. 89) 



- Large distal black patch of $ wing extending to the wing tip. No black patches at 



wing base ............ 7 



7 Large distal black patch of <J wing crescentic, extending below M. Anterior reclinate 



orbital about five-eighths as long as posteriors . . . tristipennis (p. 89) 



- Large distal black patch of o* wing oval, not extending below M. Anterior reclinate 



orbital about half as long as posteriors ..... nepalensis (p. 91) 



8 Two humerals subequal in length ......... 9 



- Upper humeral longer than lower. <£ sex-combs large, longitudinal. Second oral 



nearly as long as vibrissae ..........11 



