SAllCOPHAGA AND ALLIES 115 



17. Distal segment of the penis on its ajDical half 



with lateral thin, exj)anded margins which 



are whitish or transparent, somewhat like a 



ruffle. 18. 



Penis not with ruffle-like expansions 21. 



18. Distal segment (beyond the hinge) evidentlj^ 



divided into two subsegments 19. 



Distal segment not distinctly divided 20. 



19. The division of the distal segment is near the tip, 



which is divided into two delicate processes 

 attached to the fringe (widespread) 



No. 58. marginata n. sp. 

 The division is just beyond the middle, the apex 

 broadly and deeply cleft into two strong but 

 flat claws, which are not connected with the 

 fringe (widespread) 



No. 59. falciformis n. sp. 



20. The chitinous distal segment notched into two 



sharp points at apex ; a pair of erect median 

 marginal bristles on second abdominal seg- 

 ment (widespread) 



No. 60. setigera n. sp. 

 The distal segment swollen and whitish near 

 end, not perceptibly notched; rarely with 

 median marginals on second segment of ab- 

 domen (widespread) 



• No. 61. coloradenm n. sp. 



21. Second abdominal segment with median mar- 



ginals; distal segment of penis divided just 

 beyond the middle, second part running out 

 smooth and chitinized to an almost square, 

 slightly emarginate end (Maryland, Vir- 

 ginia) No. 62. wehsteri n. sp. 

 Second abdominal segment of abdomen without 

 median marginals 22. 



22. Front generally less than one-tenth the head- 



width (maximum .12) (Georgia) 



No. 63. angustifrous n. sp. 

 Front at least .16 of the head-width 23. 



