REVISION OF SPECIES OF STILOBEZZIA KIEFFER 37 



0-0-2; basal spine of hind basitarsus slightly shorter than thickness 

 of segment. Hind leg with lengths of femur to V as 110—1 1 1— 63— 35— 1 1— 

 7-18; TR 1.79; hind tibial comb with 6 spines. 



Wing (fig. 47/) : Faintly brownish, a faint preapical clouding in 

 cell R5, veins yellowish except r-m, R 1} tip of R4+5, and distal halves 

 of Mi, M 2 , M 3+4 , and Cui, which are brown to dark brown; CR 0.82; 

 r-m to stem M lengths as 12:11; macrotrichia as figured, ending well 

 before tip of vein M 2 ; radius and vein R 4+ 5 with scattered setae. 

 Halter dark brown. 



Abdomen: Moderately slender and straight; dark brown, terga II 

 and caudad each with posterior half silvery white; I with 12 hairs 

 on each side, posterior terga with setal pattern as in figure 47g, each 

 segment with a caudal row plus 2-5 weaker setae in front. Sperma- 

 thecae (fig. 47h) ovoid, without necks, slightly unequal, measuring 

 0.084 mm by 0.060 mm and 0.070 mm by 0.056 mm. Genital sclero- 

 tization as in figure 47i. 



Male. — Length of wing 1.56 mm. 



Similar to the female with the usual sexual differences; antennal 

 plume dark brown. Genitalia (fig. 47j-l) with sternum IX provided 

 with shallow, broad caudomedian excavation, the ventral membrane 

 finely spiculate; tergum IX short and rounded caudad, with long 

 bristles; its 2 submedian lobes being unusually small; basistyle mod- 

 erately stout and tapered, without mesal swelling, with some fine 

 hairs near mediangular process which is short but stout; dististyle 

 markedly curved, tapering to slender tip; aedeagal sclerites slightly 

 arched, slightly broader in midportion, distomesal tips slender and 

 contiguous; parameres fused on proximal halves into a broad plate; 

 lateral lobe at base in each side sinuate with a short anterior process 

 in midportion; distal portion of paramere robust and inflated and 

 bearing a strongly sclerotized, ventrolateral^ directed appendage 

 from distomesal corner. 



Distribution. — Malaya; Viet Nam. 



Specimens examined. — 4 specimens. MALAYA: Selangor, Kuala 

 Lumpur (Traub), 1 male, 2 females. VIET NAM: DiLinh (Quate), 

 1 female (pinned). 



Discussion. — Our material is in complete agreement with Macfie's 

 original description of a female from Kedah Peak (3300 ft.), Malaya. 

 Macfie's comparison of speculae with biroi Kieffer and aberrans 

 Johannsen (now synonyms of inermipes Kieffer) was based on the 

 superficial similarity of wing pattern, whereas the distal wing macro- 

 trichia, spacious IRC, tarsomere III twice length of IV, and promi- 

 nent tooth on the claw are features of the subgenus Neostilobezzia. 



