DIPTERA FROM NEPAL 73 



marginally pale brown, well demarcated. Periorbit narrow, black, extending for upper half of 

 front. Front flat, golden yellowish orange, anterior one-third paler and slightly narrower than 

 length down middle, posteriorly half as broad as head width, with several frontal hairs and 

 anterior periorbital microtrichia. Face grey, narrow. Carina high, long, greyish brown. 

 Cheeks narrow, greyish yellow, about one-twelfth as broad as the greatest diameter of eye. 

 Occiput yellowish brown, dark below. Anterior reclinate orbital small, one-fourth as long as 

 proclinate. Vibrissae rather short ; second oral one-third as long as vibrissa ; succeeding orals 

 shorter. 



Mesonotum greyish brown, with indistinct dark brownish patches. Scutellum yellowish brown, 

 pollinose. Thoracic pleura dark yellowish brown, sternepisternum pale yellow. Humerals 

 three, median longest. Prescutellar long, as long as anterior dorsocentrals. Anterior dorso- 

 centrals one-third as long as posteriors ; distance between anterior and posterior dorsocentrals 

 about one-fourth distance between anterior pair. Anterior scutellars divergent ; posteriors as 

 long as anteriors, nearer to each other than to anteriors. Sterno-index about 03. Median 

 sternopleural as long as posteriors. Legs yellow ; fore and mid metatarsi as long as the other 

 segments together, hind metatarsi longer than rest of segments together. Preapicals on all legs ; 

 apicals prominent on mid leg. Wings deeply fuscous, relatively narrow ; costa reaching end of 

 M ; i? 2+3 nearly straight, apically curved to costa ; i? 4 + 5 and M slightly divergent. C-index 

 about 3-5 ; 4V-index about 15 ; 4C-index about 07 ; 5x-index about 20 ; Ac-index about 

 18. Ci-bristles two, subequal ; C3-fringe on basal two-ninths. Halteres yellowish brown. 

 Abdominal tergites yellowish grey, caudolaterally with a black medially interrupted laterally 

 broadened cross-band. Abdominal sternites pale. 



Periphallic organs : Genital arch pale yellowish brown, setigerous and pubescent, ventrally 

 gradually broadened, with high heel and rounded toe. Clasper low, semicircular, pale yellowish 

 brown, relatively small, distal margin with a straight row of about eleven large long black teeth 

 for entire length. Anal plate elliptical, yellowish brown, separated from genital arch, setigerous 

 and pubescent; ventral corner with a tuft of short setae. Phallic organs : Aedeagus apparently 

 bifid, oval in ventral aspect, pale yellowish orange, distally narrowing, basally rounded. Basal 

 apodeme pale yellowish grey, straight, longer than aedeagus. PI = 08. Anterior paramere 

 blade-like, pale yellowish orange, basally contiguous with aedeagus and hypandrium, apically 

 pointed, laterally with two small pale depressions, which are probably sensory pits. Posterior 

 paramere obscure. Ventral fragma pale yellowish grey, broad semicircular, distal margin 

 straight, without median notch, with a pair of stout long yellowish brown submedian spines, 

 p.f. = ABCDEFg HIKLMN. 



Taplejung District, Sangu, yellowish blooms of cultivated Compositae (Guizotia 

 abyssinica Cassini), c. 6,200', 16-29. x.1961, I 6* (R-L.C). 



Distribution : Nepal (new locality), Java, Sumatra. 



Strikingly like the original form except for larger 5x-index (slightly over 1 -o in 

 original form) and distinctly interrupted abdominal cross-bands (obscurely inter- 

 rupted in original form). Mayer (1935) described larva and puparium of this 

 species from Sumatra. 



Subgenus DICHAETOPHORA Duda 

 Dichaetophora Duda, 1940 : 19. 



Type-species : Drosophila aberrans Lamb, 1914 : 334 (Seychelles). 



Duda (1940) established this subgenus for one species, aberrans Lamb. Burla 

 (1954) added two species, agbo Burla and suruk Burla from Africa, and two other 

 species, magnidentata Lee, 1964, from Korea and raridentata Okada and Chung, 



