66 



U.S. NATIONAL MUSEUM BULLETIN 2 83 



as 4-10-13-8-12; III slender with small subapical pit. Mandible with 

 7-9 teeth (av. 7.9, n=14). 



Thorax (fig. 65d): Greenish yellow; scutum, postscutellum, and 

 anterior portion above fore coxa brownish; scutellum with 4 large 

 bristles. 



Legs: Straw yellowish, knee spots dark brown, hind femur darker 

 distally; hairs weak and sparse, about 6 long extensor bristles on hind 

 tibia; tarsomere IV (fig. 65e) tipped by a sharp spinule on each lobe 

 on all legs; V without batonnets ; claws long, the longer slightly exceed- 

 ing V in length, the smaller sharp and slender; strong ventral spines 

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

 hind leg 0-0-0, 0-0-2, 0-0-2. Hind leg with lengths from femur to V 

 as 62-60-30-14-5-3-10; TR 2.14; hind tibial comb with 5-7 spines 

 (av. 6.6, n=10). 



Figure 65. — -Stilobezzia xanthogaster, new species (9 ). a, frontovertex; b, palpus; c, wing; 

 d, thorax; e, last 2 tarsomeres and claws; /, abdominal terga I-IV; g, spermathecae : 

 h, wing, in part (atypical); t, 9 genitalia; J, 9 genitalia (atypical). 



Wing (fig. 65c) : Brownish hyaline, radial veins, base of media, and 

 costa along 2RC strong, distinct; IRC rhomboidal in shape, rather 

 broad; CR 0.76; r-m to stem M lengths as 9: 13, alula fringed; radius 

 with 7 setae from arculus to r-m ; macrotrichia in a line along margin 



