96 THOMAS SAY FOUNDATION 



9. Distal segment of the penis very slender for half 

 its length (Ohio) 



No. 42. spatulata n. sp. 

 Distal segment thickened from its base 

 (widespread, see Group D) 



No. 48. opifera Coquillett. 



10. Bucca strongly produced behind in a lobe, sep- 



arated by a deep furrow from the rest of the 

 head 11. 



Bucca not so produced (Florida to South Amer- 

 ica) 



No. 9. Sarcophagula occidua Fabr. 



11. Front tibije and tarsi with fringe of short, erect 



hairs on outer and upper side (Florida to 

 South America) 



No. 7. S arothromyia femoralis Schiner. 

 Front tibiffi and tarsi plain (Florida) 



No. 8. SarofJiromi/ia femoralis var. 

 simpIccV n. var. 



12. Second abdominal segment with erect median 



marginal bristles 13. 



Second abdominal not with such bristles 14. 



13. Distal segment of penis full and globular, fiat 



behind (widespread) 



No. 43. melampyga n. sp. 

 Distal segment with hollow sides and a keel be- 

 hind (Florida) 



No. 44. melampyga var. alata n. var. 



14. Forceps at tip with a barb beliind, like a crochet- 



hook (West Indies) 



No. 45. chaetopjigialis Williston. 

 Forceps uniformly tapering at tip (Guatemala) 



No. 46. alhisigmim n. sp. 



No. 38. Sarcophaga fletcheri n. sp. 



Male, Front rather wide, .236 of head (average 

 of two, — .223 and .248) ; 9 frontals, reaching to mid- 

 dle of second antennal joint, and diverging strongly 

 at lower end of row ; front and face with gray lustrous 

 pollen, tinged slightly with yellow; the row of para- 



