REVISION OF SPECIES OF STILOBEZZIA KIEFFER 73 



membrane finely spiculate; tergum IX short, rounded caudad with 

 prominent membranous pubescent caudal lobes; basistyle short and 

 stout, inner margin expanded at midlength to prominent, simple 

 mediangular process, setigerous tubercles not developed; dististyle 

 long, only slightly curved, stout to tip; aedeagal sclerites slender, 

 slightly arcuate with slight outer expansion, the caudomedian tip 

 sharp pointed; parameres massive, each with basal arm prominently 

 expanded laterally winglike, main body with proximal half crooked, 

 bearing a short, spinelike process on dorsal side, distal portion strongly 

 expanded laterally at midlength of paramere and gradually tapered to 

 bluntly rounded tip. 



Distribution. — Malaya. 



Type. — Holotype male, Singapore, Malaya, 4 Jan. 1960, D. H. 

 Colless, light trap (USNM 69467). 



Discussion. — This species is unique in having very stout legs with 

 numerous spinelike bristles and massive genitalia with strongly ex- 

 panded parameres. 



27. Stilobezzia (Stilobezzia) rotunditheca Das Gupta and Wirth, new species 



Figure 67 



Female. — Length of wing 1.35 mm: breadth 0.47 mm. 



Head: General features as in traubi, new species, antennae and palpi 

 broken. Mandible with 6 teeth. 



Thorax: Yellowish brown; postscutellum and scutum dark brown; 

 scutellum with 4 large bristles. 



Legs : Yellowish (fore legs missing) ; tarsomere V with 6 batonnets on 

 mid leg, 4 on hind leg; tibial bristles as in traubi; strong ventral spines 

 on I-III as: mid leg 1-0-2, 0-0-2, 0-0-2; hind leg 0-0-2, 0-0-2, 

 0-0-2. Hind leg with femur to V lengths as 94-97-44-21-7-3-19: TR 

 2.1 ; hind tibial comb with 7 spines. 



Wing (fig. 67a) : Faintly brownish, unmarked, veins slightly darker 

 brown; CR 0.84; r-m to stem M lengths as 13: 14. Halter slightly 

 infuscated. 



Abdomen: Yellowish brown, terga with sparse, fairly long setae; I 

 with cluster of 15 hairs on each side. Spermathecae (fig. 676) strongly 

 sclerotized, with fine hyaline perforations, subspherical with short, 

 slender sclerotized necks; functional pair unequal, measuring 0.060 

 mm and 0.049 mm in diameter, exclusive of necks. Genital sclerotiza- 

 tion as in figure 67c. 



Male. — Length of wing 1.1 mm. 



Similar to the female with the usual sexual differences; antennal 

 plumes faintly brownish; inner margins separated by a wedge-shaped 

 space; vertex with 8-9 hairs; palpal segment III with small subapical 



