22 T. OKADA 



five to eight dorsal and two or three ventral branches besides a small fork. Palpus yellowish 

 orange, with short black stout setae below. Ocellar triangle black. Periorbit yellowish grey, 

 medially narrowing, two-thirds as long as front. Front yellowish grey, parallel-sided, anterior 

 width two-thirds or three-fourths as broad as length down middle, posteriorly two-fifths as 

 broad as head width, medially slightly fuscous. Face greyish white, laterally concave. Carina 

 flat. Cheeks yellow, very narrow, about one-fourteenth as broad as the greatest diameter of eye. 

 Orbitals equal sized ; anterior reclinate four times as distant from posterior reclinate as from 

 proclinate. Only one prominent oral. Postverticals rather long. 



Mesonotum deep yellowish orange, unicolorous. Scutellum deep yellowish orange, laterally 

 black, apically yellowish white. Thoracic pleura yellow, with a black longitudinal obscurely 

 defined stripe. Prescutellar long, as long as anterior dorsocentral. Acrostichal hairs in about 

 ten rows. Anterior dorsocentrals two-thirds length of posteriors ; distance between anterior 

 and posterior dorsocentrals about two-sevenths distance between anterior pair. Anterior 

 scutellars divergent, slightly longer than scutellum ; posteriors slightly shorter than anteriors. 

 Sterno-index about o-8. Legs yellow, thick ; mid and hind knees slightly fuscous. Mid 

 metatarsi sub-equal in length to the other segments together, fore and hind metatarsi slightly 

 longer than the other segments together. Preapicals on all legs ; those on mid leg large. 

 Wing hyaline, crossveins clear. R 2 +z gently curved to costa at tip ; i? 4 + 5 and M somewhat 

 divergent apically. C-index about 2-2 ; 4V-index about 20 ; 4.C-index about 11 ; 5x-index 

 about 1-4 ; Ac-index about 2-0. Ci-bristles two ; C3-fringe on basal seven-tenths. Halteres 

 yellow, slightly black at tip. Abdominal tergites : In <J, iT yellow ; 2T anteriorly black, 

 posterior half silvery white ; 3T very short, silvery white, without macrotrichia ; 5-6T black, 

 dorsolaterally with small yellowish spots ; anal cerci yellow. In $, 2T with lateral black 

 spot ; 3T not short ; 3-5T black, lateroanteriorly yellow ; 6T yellow ; anal cercus yellow. 



Periphallic organs : Genital arch white, narrow above, broadly truncate below, heel and toe 

 nearly rectangular, with evenly distributed microtrichia and several setae on posterior and ven- 

 tral margins. Anal cercus white, small, fusiform, setigerous, anteriorly convex. Clasper white, 

 oval, pubescent, setigerous on lower half. Phallic organs : Aedeagus black, entirely bifurcated, 

 apically with an orange-yellow hooked piece, basally with a pale rod-shaped recurved process. 

 Anterior paramere pale, elongate, fusiform, distally with a few sensilla. Posterior parameres 

 triangular, orange-brown. Ventral fragma proximally pointed, laterally somewhat dilated. 

 PI = 00. p.f. = ABCDEFgHikLmN. 



Taplejung District, between Sangu and Tamrang, mixed shrubs in deep gorge, 

 c. 5,200', x-xi.1961, 1 <$ ; Arun Valley, east shore of River Arun below Tumlingtar, 

 evergreen shrubs bordering dry stream-beds, c. 1,800', 14-23. xii. 1961, 15 <$, 5 $ 

 (R.L.C.). 



Distribution : Nepal (new locality), New Guinea. 



Agrees with the original form (New Guinea, Duda, 1924a) in having yellow palpus, 

 yellow and apically black halteres, and striped thoracic pleura, but differs in having 

 no prominent macrotrichia on <$ 3T. 



Leucophenga albifascia sp. n. 



(Text-figs. 44-48, 95) 



<J. Body about 2-5 mm. Head slightly broader than thorax. Eyes dark red, large, bare. 

 Ocelli bright deep red. Antennae with second segment yellow, third grey. Arista with about 

 six dorsal and three ventral branches and a small terminal fork. Palpus orange-yellow, slender, 

 ventrally with a few strong black setae. Ocellar triangle black, grey pollinose. Periorbit 

 brown, obscurely demarcated from front, anteriorly broadened, two-thirds as long as front. 

 Front narrow, nearly parallel-sided, dark yellowish grey, anteriorly paler, anterior width as 



