FLIES OP GENUS CONOPS — CAMRAS 187 



62. Front dark with yellow in center P. crudiis (Walker) 



Front light with dark medially or dorsally 63 



63. Antennal segment 3 relatively robust, usually longer than segment 2. 



P. longistylus (Krober) 

 Antennal segment 3 relatively slender, rarely longer than segment 2 . . . .64 



64. Distal abdominal segments dark reddish ... P. gracilianus, new species 

 Distal abdominal segments black 65 



66. Facial grooves entirely dark P. floridanus, new species 



Facial grooves pale, but may have dark spot 66 



66. Reddish species P. gracilis (Williston) 



Dark species 67 



67. First basal cell dark; theca long; facial grooves unmarked. 



P. bahamensis Parsons 

 First basal cell hyaline; theca short; facial grooves usually with dark mark. 



P. brachyrhynchus (Macquart) 



U. S. GOVERNMENT PRINTING OFFICE: I9III 



