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U.S. NATIONAL MUSEUM BULLETIN 2 77 



Figure l7S.~Belosta albipilosa D. E. Hardy, male, female: a, wing; h, c, lateral aspects of 

 male and female heads; d, frontal aspect of female head; e,f, enlarged details of male and 

 female antennae; g, h, ventral and lateral aspects of male terminalia; i, dorsal aspect of 

 female 8th and 9th segments; ;, ventral aspect of female 8th and 9th segments; k, lateral 

 aspect of female 8th and 9th segments; /, spermatheca. 



Figure l79.~Belosta pilosa (Coquillett), male, female: a, wing of male; b, wing of female; 

 c, d, lateral aspects of male and female heads; e, /, frontal aspects of male and female 

 heads; g, h, enlarged details of male and female antennae; i, j, ventral and lateral aspects 

 of male terminalia; k, ventral left and dorsal right aspect of female 8th and 9th segments; 

 /, lateral aspect of female 8th and 9th segments; m, spermatheca. 



