136 



U.S. NATIONAL MUSEUM BULLETIN 283 



fairly straight on basal portion, distally strongly curved and gradually 

 narrowed to slender distal rod. 



Distribution. — Thailand. 



Types. — Holotype male, Loei Pro v., Thai Li Dist., Thailand, 8-9 

 June 1959, Manop R., light trap (USNM 69489). Paratype, 1 male, 

 Chiang Mai Prov., Thailand, Apr-May 1958, V. Notananda, light 

 trap. 



Discussion. — This species is similar to unifasciata Tokunaga from 

 New Guinea, but that species has the abdomen pale except for a 

 dark band covering the distal half of III and all of IV, the halter 

 knob pale, and the male genitalia with dististyle stout to the tip. 



57. Slilobezzia (Stilobezzia) imparungulae Das Gupta and Wirth, 



new species 



Figures 10, 99 



Female. — Length of wing 1.27 (1.18-1.41, n=10) mm; breadth 

 0.49 mm. 



Head: Vertex (fig. 99a) yellowish brown, with 8 hairs. Antenna 

 with torus brown, distal antennomeres pale; III-XV (fig. 10) with 

 lengths as 14-8-8-8-8-8-8-8-20-19-20-20-32; AR 1.59; III-X long, 

 elliptical, without preapical collar. Palpal segments (fig. 99i) as 

 4-10-15-9-13; pale, only V darker. Mandible with 7 teeth. 



m iv 



Figure 99. — Stilobezzia imparungulae, new species (a-g, i-k, 9 ; h, l-n, cf). a, fronto- 

 vertex; b, halter; c, thorax; d, femora-tibiae; e, last 2 tarsomeres and claws; /, wing; 

 g, abdominal terga II-IV, ? ; h, same, d" ; i, palpus, /, spermathecae; k, ? genitalia; 

 l-n, cf genitalia. 



