REVISION OF SPECIES OF STILOBEZZIA KIEFFER 



29 



Figure 46. — Stilobezzia brevicostalis, new species (a-h, 9 , i-k, cf 1 )- a, frontovertex; b, 

 femora-tibiae; c, wing; d, palpus; e, spermathecae; /, last 2 tarsomeres and claws; g, 9 

 genitalia; h, abdominal terga; i, trochanter-femur of cf hind leg; j-k, cf genitalia. 



times short; III with subdivided pit bearing 3-4 long sensilla. Mandible 

 with 7-8 teeth (av. 7.1, n=18). 



Thorax: Dark brown, scutellum and middle of plenron paler; 

 seutellum with 4 large bristles. 



Legs (fig. 466): Pale grayish to straw colored; coxae, trochanters, 

 and distal half of hind femur dark brown; tibiae and fore and mid 

 femora variably pale brownish in broad midportions; tarsomeres IV-V 

 brownish. Legs stout, hairs weak and sparse, hind tibia with 7 stronger 

 bristles in extensor series; IV and V unarmed ventrally; claws (fig. 

 46/) nearly as long as V, each with sharp basal tooth about half as 

 long; stouter ventral spines on tarsomeres I— III as: fore leg 0-0-1, 

 0-0-1, 0-0-2; mid leg 1-0-2, 0-0-2, 0-0-2; hind leg 0-0-1, 0-0-2, 

 0-0-2. Hind leg with lengths from femur to V as 52-50-26-10-5-4-11 ; 

 TR 2.6; tibial comb with 6-7 spines (av. 6.6, n=10). 



Wing (fig. 46c): Hyaline, anterior veins brownish; CR 0.55; costa 

 with widely spaced marginal setae; r-m to stem M lengths as 7:19. 

 Halter pale brownish throughout. 



Abdomen (fig. 46h) : Pale grayish; terga dark brown except I pale 

 except on side margins and II pale at midline; I with 2-3 hairs on 

 each side; distal terga each with row of setae along caudal margin. 

 Spermathecae (fig. 46e) heavily sclerotized with minute hyaline 

 perforations, pyriform with short sclerotized slender necks, slightly 

 unequal, measuring 0.046 mm by 0.032 mm and 0.039 mm by 0.028 

 mm. Genital sclerotization as in figure 4Qg. 



288-859 0-68— 3 



