NO. 1124. RETISIOX OF THE MELANOPLI SCUDDER. 129 



i 1 . Cerci of male rounded at tip ; furcula scarcely protruding beyond 



the hind margin of the last dorsal segment; apical margin of the 



subgenital plate slightly elevated above the lateral margins. 



j l . SupraanaJ plate of male suddenly contracted before the tip; 



anal cerci regularly incurved throughout; subgenital plate very 



broad at base 73. xaltator (p. 2 il). 



/-. Supraanal plate of male regularly triangular ; anal cerci slightly 

 twisted as well as incurved; subgenital plate narrow at base. 



74. rolnndipennis (p. 263). 



i-. Cerci of male truncate at tip; lobes of furcula long; apical mar- 

 gin of subgenital plate in no way elevated above the lateral margins. 



75. obovaii2)enni8 (p. 264). 



/<-. Metasternal lobes of male only approximate; tegmina as long as 

 or much longer than the pronotum ; anal cerci of male slightly de- 

 curved apically, or at least inferiorly angulate at apex. 



i 1 . Tegmiua not much longer than the pronotnin; cerci of male deli- 

 cate, tapering considerably in apical half; subgenital plate only 

 slightly elevated posteriorly, no broader there than at base. 



76. jurencHs (p. 266). 



i-. Tegmina more than half as long as the abdomen; cerci of male 

 coarse and stont, tapering but little in basal half; subgenital plate 

 strongly elevated posteriorly and there very broad. 



77. fasciatus (p. 267). 



e 3 . Subgenital plate of male short and broad, its apical breadth equal to or 

 surpassing the length of its lateral margin, see previous note (18. Alleni 

 series). 



f 1 . Tegmina twice as long as pronotum; cerci of male relatively long and 

 narrow ; male cerci fully three times as long as broad. . 79. alleni (p. 273). 

 /-. Tegmina of about the length of the pronotum ; cerci of male broad and 

 relatively short; male cerci not more than twice as long as broad. 



80. snowii (p. 274). 



d-. Interval between mesosternal lobes of male nearly or quite twice, some- 

 times more than twice, as long as broad; metasternal lobes of male attingent 

 or subattiugent. 



c 1 . Subgeuital plate of male short and broad, its apical breadth equal to or 

 surpassing the length of its lateral margin, see previous note (23. Texanus 

 series). 



/'. Tegmina widely separated, lateral; interval between mesosternal lobes 

 of male more than twice as long as broad; furcula consisting of a pair of 



exceptionally broad and short plates 101. dumicoJa (p. 318). 



/-. Tegmina subattingent, attingent, or overlapping; interval between 

 mesosternal lobes of male less, generally much less, than twice as long as 

 broad ; furcula consisting of a pair of approximate pointed denticulations. 

 </'. Subgenital plate of male ending in a conical tubercle. 



102. cariabilis (p. 319). 

 y 2 . Subgenital plate of male with no pointed tubercle. 



h ] . Lobes of furcula longer than broad; extremity of subgenital plate 

 of male elevated, but not noticeably recurved; interval between 

 mesosternal lobes of male hardly more than half as long again as 

 broad. 



1 1 . Apex of male cerci angulate below 103. lepidus (p. 321). 



1 2 . Apex of male cerci equally rounded above and below. 



104. blatchleyi (p. 322). 

 Proc. N. M. vol. xx 9 



