134 



U.S. NATIONAL MUSEUM BULLETIN 2 83 



Larger species; abdominal tergum II with brown infuscation in form of 2 

 bands extending from side to middle; parameres dark brown, rodlike, not 

 greatly curved; basistyle with basidorsal process stout and elongated; 

 dististyle gently tapering caudad and incurved at middle. 



imparungulae, new species 



55. Stilobezzia (Stilobezzia) debilipes Das Gupta and Wirth, new species 



Figure 97 



Female. — Length of wing 0.91 mm; breadth 0.36 mm. 



Head: Pale yellowish, distal antennomeres slightly darkened; 

 antennae and palpi similar to those of imparungulae, new species, 

 AR 1.59; mandible with 7 teeth; vertex (fig. 97a) with 6 hairs, inter- 

 ocular space a little broader than in imparungulae. 



Thorax: Color chocolate brown including scutellum, postscutellum, 

 and upper half of pleuron; lower pleuron greenish yellow. 



Figure 97. — Stilobezzia debilipes, new species (?). a, frontovertex; b, last 2 tarsomeres 

 and claws; c, wing; d, abdominal terga I-IV; e, halter;/, spermathecae; g, 9 genitalia. 



Legs: Yellowish white with weak setae; tarsal spines as in imparun- 

 gulae, but ventral spines on V very weak, scarcely distinguishable 

 on mid and hind leg; V (fig. 976) short and somewhat swollen, claws 

 much reduced, especially on mid and hind leg. Hind leg with lengths 

 from femur to V as 61-57-31-15-4-3-6; TR 2.07; hind tibial comb 

 with 6-8 spines. 



Wing (fig. 97c): Colorless, the anterior veins whitish; CR 0.69; 

 2RC narrow, especially distad where vein R 4+5 is somewhat stouter; 

 r-m to stem M lengths as 5:22. Halter (fig. 97e) with dusky stem, 

 whitish knob. 



Abdomen (fig. 97d) : Greenish white, terga II-VI completely dark 

 brown; setae as in imparungulae. Spermathecae (fig. 97/) unequal, 

 the larger oval, heavily sclerotized dark brown, the smaller spherical, 



