DIPTERA FROM NEPAL 77 



twice as distant from posterior reclinate as from proclinate. Proclinate inside others. Second 

 oral half as long as vibrissa. 



Mesonotum yellowish grey, matt. Scutellum yellowish grey, pollinose. Thoracic pleura 

 paler, with two or three dark longitudinal stripes. Humeral callus paler. Humerals two, 

 subequal. Acrostichal hairs in six rows. Anterior dorsocentrals two-thirds as long as posteriors ; 

 distance between anterior and posterior dorsocentrals two-thirds distance between 

 anterior pair. Anterior scutellars longer than posteriors, divergent ; posteriors thrice as distant 

 from anteriors as from each other. Sterno-index about 0-4. Legs yellowish grey, coxa paler ; 

 all metatarsi as long as three following segments together. Last tarsal segment large. Preapi- 

 cals on all legs ; apicals on mid leg. Wings hyaline, slightly fuscous. i? 2 + 3 gently curved to 

 costa at tip ; R i + b and M nearly parallel, costa reaches M, but weak beyond R 4 + 5 . C-index about 

 21 ; 4V-index about 2-5 ; 4C-index about 1-7 ; 5x-index about 45 ; Ac-index about 2-7. 

 Ci-bristles two ; C3-fringe on basal half. Halteres yellowish grey, tip somewhat dark. Ab- 

 dominal tergites yellowish brown, each with a distinct not medially interrupted, broad median 

 black transverse band. 



Periphallic organs : Genital arch greyish brown, setigerous and pubescent, truncate below. 

 Clasper large, quadrate, greyish brown, submedially with a row of about four very large pointed 

 black teeth. Anal plate setigerous and pubescent, pale yellowish grey, oval, lower tip narrowing. 

 Phallic organs : Aedeagus rod-shaped, yellowish grey, apically truncate ; apodeme one-third 

 as long as aedeagus ; vertical rod short but thick. Anterior paramere large, oval, pale grey, 

 basally contiguous with vertical rod, apically with a few sensilla. Ventral fragma pale grey, 

 pubescent, with a deep median notch and a pair of finger-like submedian processes, apically with 

 a pair of long submedian spines, lateral arms triangular. Decasternum triangular, large. 

 PI = 30. p.f. = aBCDEfg HIklmn. 



Taplejung District, Sangu, mixed vegetation by stream in gully, c. 6,200', ix-x. 

 1961, 1 $ {R.L.C.). 



Distribution : Nepal (new locality), Japan, Korea. 



Differs somewhat from the original form (Korea) in having smaller body, longer 

 anterior dorsocentral, and two ventral branches of arista (one in the original form). 

 Originally described from <$, the $ was recorded by Wakahama, Kaneko, and 

 Tokumitsu (1963) from Japan. 



Subgenus HIRTODROSOPHILA Duda 



Hirlodrosopkila Duda, 1924a : 203. 



Type-species : Drosophila longecrinita Duda, 1924a : 204 ; 1924b : 242 

 (Formosa, New Guinea). 



Key to Species 



1 Arista with two branches below fork. Palpus with only one prominent apical seta. 

 Cheeks broad, about two-fifths as broad as the greatest diameter of eye. Meso- 

 notum glossy dark reddish brown. Acrostichal hairs in six rows. Preapicals on 

 all legs. Third costal section with strong bristles. Postverticals longer than 

 verticals .......... tripartita (p. 78) 



— Arista with only one branch below fork. Palpus with a few prominent ventral setae. 

 Cheeks narrow, about one-eighth as broad as the greatest diameter of eye. Meso- 

 notum dark chestnut-brown. Acrostichal hairs in eight rows. Preapicals on mid 

 and hind legs. Third costal section without strong bristles. Postverticals much 

 shorter than inner verticals ....... limbicostata (p. 79) 



