DIPTERA FROM NEPAL 91 



narrow, low. Clypeus greyish yellow. Cheeks white in 5*, yellowish grey in $, about one-sixth 

 as broad as the greatest diameter of eye. Occiput yellow, medially black. Anterior reclinate 

 orbital five-eighths as long as others, twice as distant from posterior reclinate as from proclinate. 

 Vibrissae long ; second oral half as long as vibrissa ; succeeding orals shorter. 



Mesonotum yellowish grey, somewhat glossy, nearly unicolorous. Scutellum pale yellowish 

 brown, somewhat glossy. Thoracic pleura pale yellowish brown ; humeral callus pale. Two 

 long humerals. Acrostichal hairs in six rows. Anterior dorsocentrals about half as long as 

 posteriors ; distance between anterior and posterior dorsocentrals about two-fifths distance 

 between anterior pair. Anterior scutellars convergent, slightly shorter than posteriors, which 

 are nearer to each other than to anteriors. Sterno-index about 07. Legs yellowish white ; 

 fore femur ventrally with several long hairs ; mid tibia apically with four hooked scaly bristles ; 

 metatarsus without such bristles. Front and hind metatarsi as long as next three segments 

 together, mid metatarsi as long as the other segments together. Preapicals on all legs ; apicals 

 prominent on mid leg. Wings hyaline, broad, in o* with a crescentic black patch along outer 

 margin and a black stripe below R lt in + > with a black spot at the apex of R 2 + 3 Costa reaching 

 M, i? 2 +3 straight, not curved to costa at tip ; i? 4 + 5 and M parallel. C-index about 2-0 ; 4V- 

 index about 27 ; 4C-index about i-6 ; 5x-index about 4-0 ; Ac-index about 31. Ci-bristles 

 two ; C3-fringe on basal one-fourth. Halteres yellow. Abdominal tergites mostly black ; iT 

 yellow, 2T yellow on anterior half. Female cercus dark brown. 



Periphallic organs : Genital arch black, medially widely pale, mediocaudally gently pro- 

 jected, dorsally exceedingly narrowing, ventrally truncate, pubescent at dorsal tip, setigerous 

 along caudal margin. Clasper pale yellow, elongate, ventrally narrowing, subapically with a 

 row of about five large teeth on distal margin. Secondary clasper present, above the primary 

 clasper, with a straight row of about seven large black teeth on entire distal margin. Anal 

 plate black, setigerous, rounded above, ventrally narrowing and with a few thick black bristles. 

 Phallic organs : Aedeagus slender, bifid, orange, marginally with long serration ; basal apodeme 

 slightly longer than aedeagus. P.I. = 0-7. Anterior paramere short, rod-like, black, attached 

 to aedeagus basally, apically somewhat broadened and with a few sensilla. Posterior paramere 

 pale, broad, fusiform in lateral aspect, proximally bilobed, attached to aedeagus by one arm 

 and to the lateral corner of ventral fragma by the other. Ventral fragma semicircular, with a 

 pair of short submedian spines ; hypandria pubescent, p.f. = AbCd'EfGHIKlMN. Egg- 

 guide lobe pale yellow, oblong, subapically swollen dorsally, with about eight marginal black 

 slender setae, ventrosubapical one longest. Basal isthmus yellow, one-sixth as long as lobe. 



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

 ix-x.1961, 1 $, xi. 1961-1.1962, 1 $ ; edge of mixed forest above Sangu, c. 6,500', 

 17.x-1.xi.1961, 11 (J, 8 $ ; between Sangu and Tamrang, dense vegetation in tree 

 shade by hill stream, c. 5,500', 23.x. 1961, 1 <J, 2 $ ; ibid., mixed plants by damp 

 cliff in deep river gorge, c. 5,200', 22.xi.1961, 1 $ ; Dobhan, evergreen trees over- 

 hanging stream in deep gully, c. 3,500', 30.1. 1962, 1 $ (R.L.C.). 



Distribution : Nepal (new locality), India, Formosa. 



Differs somewhat from the original form (Formosa) in having six rows of acrosti- 

 chal hairs (eight in original form), and posteriorly black ocellar triangle (yellowish 

 white in original form). The pectinate aedeagus shows a close relationship to the 

 members of the melanogaster-subgroxip. 



Drosophila (Sophophora) nepalensis Okada 

 Drosophila nepalensis Okada, 1955 : 388 (Nepal). 



o\ ?• Body dark brown, especially dark in q\ Head as broad as thorax. Arista with about 

 four dorsal and three ventral long branches and a moderate terminal fork. Front matt yellowish 

 grey, with silver-white pollinosity, anteriorly narrowing and somewhat broader than length 



