SPHAEROCERA IN CENTRAL AND SOUTH AMERICA — RICHARDS 231 



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17 



10 



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14 



15 



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17 



16 



Figures 8-17. — Sphaerocera trafezina, new species: 8, Abdominal sternites and genitalia, 

 cT. 9, Genitalia, cf , from the right. 10, Abdominal sternites 1-4, 9 . Sphaerocera tertia, 

 new species: 11, Abdominal sternites and genitalia, (^. 12, Genitalia, <^, from the 

 right. Sphaerocera chimborazo, new species: 13, Abdominal sternites 1-4, cf. 14, 

 Abdominal sternites 1^, ? . Sphaerocera bimaculala Williston: 15, Abdominal sternites 

 1-5, 9. Sphaerocera levicastilli, new species: 16, Abdominal sternites 1-4, cf. 17, 

 Presternum, d^. 



Ecuador: Chimborazo, Naranjapata, Chilicay, June 16, 1955, cf 

 holotype and paratype, R. Levi-Castillo, USNM type no. 66593. 



733-276— G5 2 



