REVISION OF SPECIES OF STILOBEZZIA KIEFFER 59 



row along wing margin from 2RC to vein M x with one in cell Mi. 

 Halter pale brownish. 



Abdomen: Yellowish brown, terga slightly infuscated; I with 

 cluster of 5 hairs on each side, other terga each with irregular row of 

 long setae (fig. 606). Genitalia (fig. 60c-e) brownish, short, and sub- 

 circular in profile viewed ventrally; sternum IX narrow and ribbon- 

 like, the ventral membrane minutely spiculate; tergum IX rounded 

 caudad with widely spaced, small, pubescent caudal lobes, with sparse, 

 long bristles on dorsal surface; basistyle stout basally and with small 

 mediangular process, slender distally; dististyle moderately long, 

 nearly straight, stout to the blunt apex; aedeagal sclerites bisinuate, 

 slender, with abrupt expansion on outer margin about midlength, 

 with sharp caudomedian point; parameres each with detached long 

 curved lateral arm from base, main body rather stout and short, 

 gradually curved ventrad toward apex with blunt-pointed tip. 



Distribution. — Malaya. 



Types. — Holotype male, Dungun, Bukit Besi, Trengganu, Malaya, 

 26-28 Feb. 1961, A. A. Hubert, light trap (USNM 69461). Paratype, 

 1 male, same data but collected 6 Aug. 1958 by R. Traub. 



Discussion. — This species is similar to constans, new species, but 

 the third palpal segment is shorter and stouter, there are fewer 

 macrotrichia on the wing and no setae on the radius, the parameres 

 are shorter and not expanded platelike apically, and the dististyles 

 are much more bluntly tipped. The male parameres of thyridojera 

 Tokunaga from New Guinea are shaped much as in obesigenitalis, 

 but that species is much larger and differs in other respects. 



21. Stilobezzia (Neostilobezzia) parvitheca Das Gupta and Wirth, new species 



Figures 28, 61 



Female. — Length of wing 1.42 mm; breadth 0.56 mm. 



Head: Brownish, antennae and palpi unicolorous; vertex (fig. 61a) 

 with 10 hairsj eyes narrowly separated. Antenna (fig. 28) with III— 

 XIII lengths as 11-8-8-8-8-8-8-9-16-17-18 (XIV, XV damaged); 

 XV with a stiff apical seta; III-X cylindrical. Palpal segments (fig. 

 61e) as 3-11-17-10-15; III with a subapical pit. Mandible with 7 

 teeth. 



Thorax: Yellowish brown, most of scutum, postscutellum, and 

 venter between fore and mid coxae darker brown; scutellum with 4 

 large bristles. 



Legs: Straw colored, knee spots brownish; femora and tibiae with 

 sparse weak hairs, hind tibia with 7 long extensor bristles; tarsomere 

 IV (fig. 616) biiobed with stiff hair at tip of each lobe; claws long and 

 slender, sharp, the shorter ungue small; I— III with strong ventral 



