496 N. C. AGR. EXP. STA. BUL. 239 
margin dull yellow, apical membrane smoky; face and thoracic pleura black 
with dull yellow areas on proepimeron and mesepisternum; legs yellow 
marked with black. 
Holotype male, Monson Valley, Tingo Maria, Peru, October 26, 1954, (E. 
I. Schlinger and E. S. Ross) and two topotypic males, November 10, 1954 and 
December 9, 1954, same collectors (CAS). 
M. bicornuta, n. sp., is closely related to M. charapensis, n. sp. (below), from 
which it differs in the absence of a membranous area at the bases of the fore- 
wings and in its bifid pygofer process. The genital characters not illustrated 
are like those illustrated for charapensis. 
407p 

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407q | 

407c 
FIGURES 406, 407.—406, Mesogonia bicornuta, n. sp., holotype: p, Male pygofer, 
right side, from caudoventral view. 407, M. charapensis, n. sp., holotype: p, 
Style, connective, and paraphyses, from dorsal view; g, male pygofer apex, 
left side, from ventral view. 
