DIPTERA FROM NEPAL 105 



and periorbits, parallel-sided, anteriorly paler and one and a half times as broad as length down 

 middle, posteriorly three-fifths as broad as head width. Clypeus greyish yellow, medially with a 

 narrow dark transverse stripe. Face broad, pale yellowish grey, paler along eye margin, 

 parallel-sided. Carina very large, broad, high, and long. Cheeks glossy yellowish grey, black 

 at the insertion of vibrissa, nearly half as broad as the greatest diameter of eye. Anterior 

 reclinate orbital half as long as proclinate, one-fourth as long as posterior reclinate, situated out- 

 side proclinate, twice as distant from posterior reclinate as from proclinate. Vibrissae very long 

 and black, succeeding orals slender. Postverticals relatively short, half as broad as inner verti- 

 cals. 



Mesonotum yellowish grey, with three pairs of brownish longitudinal stripes, median pair 

 broadest and reaching to the tip of scutellum, which is yellowish in ground colour. Thoracic 

 pleura yellowish grey, with three longitudinal brownish stripes. Two humerals, lower weaker. 

 Acrostichal hairs in six rows. Anterior dorsocentrals three-fourths as long as posteriors ; 

 distance between anterior and posterior dorsocentrals equal to distance between anterior pair 

 or slightly shorter. Anterior scutellars divergent, posteriors four-fifths as long as anteriors and 

 somewhat nearer to each other than to anteriors. Legs yellow ; fore femur with several long 

 setae below ; all metatarsi subequal in length to next three segments together. Preapicals on 

 all legs ; apicals on mid leg. Wings broad, hyaline ; crossveins clear, tip of second costal 

 section somewhat swollen and black. i? 2 +3 n °t prominently curved to costa at tip ; i? 4 + 5 and M 

 parallel ; costa weak beyond /? 4 + 5 . C-index about 17 ; 4V-index about 23 ; 4C-index about 

 1-5; 5x-index about 1 -6 ; Ac-index about 31. Ci-bristles two, subequal ; C3 -fringe on basal 

 half. Halteres yellowish white. Abdominal tergites yellowish grey, each with a broad entire 

 caudal black band. Egg-guide lobe orange-yellow, apically narrowing and rounded, with about 

 sixteen orange-brown thick marginal teeth and four slender discal teeth. Basal isthmus black, 

 short, about one-eighth as long as lobe. 



Holotype $. East Nepal : Taplejung District, between Sangu and Tamrang, 

 mixed shrubs in deep gorge, c. 5,200', x-xi.1961. (RL.C), BMNH. 



Resembles D. grandis Kikkawa and Peng, 1938 (Japan), in having striped meso- 

 notum and thoracic pleura, but differs from it in the swollen tip of second costal 

 section and rounded tip of egg-guide. 



The IMMIGRANS Group 



Drosophila (Drosophila) cubicivittata sp. n. 



(Text-figs. 310-315) 



o*. Body about 28 mm. Head as broad as thorax. Eyes dark brownish red, with grey 

 pollinosity and pilose. Antennae with second segment greyish brown, third segment and arista 

 missing. Palpus black, slender, with a long apical seta and a ventral one. Ocellar triangle 

 glossy black, the black spot extending caudally to vertex. Periorbit yellowish white, obscurely 

 limited, dark along either side between orbitals. Front matt yellowish white, with a pair of 

 broad dark anteriorly convergent longitudinal stripes, parallel-sided, anteriorly broader than 

 length down middle, posteriorly slightly broader than half head width. Clypeus pale brown, 

 small. Face yellowish grey, somewhat glossy. Carina high, long, yellowish white, with a small 

 brownish spot at lower tip. Postverticals moderate in size. Occiput yellowish grey, laterally 

 black. Cheeks yellowish white, somewhat glossy, about one-fourth as broad as the greatest 

 diameter of eye. Anterior reclinate orbital about half as long as proclinate, one-third as long as 

 posterior reclinate, slightly nearer to proclinate than to posterior reclinate. Proclinate slightly 

 inside other orbitals. Vibrissae long, succeeding orals less than half as long as vibrissa. 



Mesonotum dark chestnut-black, grey pollinose. Humeral callus yellow. Scutellum dark 

 chestnut-black, pollinose, laterally yellow. Thoracic pleura pale yellowish grey, with three 



