NO. 1124. REVISION OF THE MELANOPLI SC UDDER. 127 



I 1 . Prosternal spine transverse, apieally truncate or subtrun- 

 cate; interval between ruesosternal lobes of female slightly 

 transverse; subgenital plate of male moderately narrow. 



53. montanus (p. 232). 



I' 2 . Prostemal spine subeonical, bluntly pointed; interval 

 between mesosternal lobes of female broadly transverse, some- 

 times as broad as the lobes. 



m 1 . Interval between mesosternal lobes of female narrower 

 than the lobes; cerci of male subequal throughout. 



v l . Prozoua but little longer than the metazoua; hind 

 tibiae uniform in color beyond the patellar spot; tegniina 

 transversely convex, so that the dorsal and lateral fields 

 are not distinguished from each other by any angle ; costal 

 margin of same regularly arcuate. 



54. washingtonianus (p. 233). 



n~. Prozona much longer than themetazona; hind tibiae 

 with a broad pallid subbasal aunulation; dorsal and lat- 

 eral fields of tegmiua set in distinct planes; costal margin 



of same augulato-arcuate 55. walsliii (p. 235). 



m~. Interval between mesosternal lobes of female fully 'as 

 broad as the lobes; cerci of male scarcely half as broad in 



the apical half as at base 56. altitudinum (p. 236). 



A"-. Interspace between the eyes of male no broader than the 

 first antenna! joint; anal cerci of male with nearly straight 

 upper margin; subgenital plate not apieally elevated, though 

 furnished with a backward directed tubercle formed by the 



angulation of the margin 57. gracilipes (p. 238). 



j 2 . Tegmina lateral, widely separated; cerci of male apieally trun- 

 cate; furcula obsolescent; subgeuital plate relatively short, of 



unequal breadth 58. geniculatus (p. 239). 



t 2 . Apical margin of subgenital plate of male neither elevated nor 

 tuberculate, the margins as seen from above quadrate, apieally 



transverse 59. rusticus (p. 240). 



g 2 . Cerci of mule tapering distinctly and abruptly, the apical less or 

 almost less, generally very much less, than half as broad as the basal 

 portion and more or less acuminate (14. Borckii series). 



h l . Subgeuital plate of niaie more or less elevated posteriorly, but 

 with no distinct apical tubercle. 



i 1 . Posterior margin of pronotum not mesially emargin#te ; tegmina 

 attiugeut or approximate. 



/'. Interval between mesosternal lobes of female strongly trans- 

 verse; lateral carinae of pronotuin rounded so as to be subobso- 

 lete; postocular piceous band generally distinct, complete, per- 



current 60. pacificus (p. 241 ). 



j' 2 . Interval between mesosternal lobes of female subquadnite or 

 feebly transverse; lateral carinae of pronotum distinct; postocu- 

 lar piceous band generally obsolete or wholly wanting, and even 

 when distinct wholly confined to the prozona. . 61. borcMi (p. 24o ). 

 i-. Posterior margin of pronotum uiesially emarginate ; tegmina dis- 

 tant, lateral. 

 j l . Color testaceous with feeble or no postocular dark belt. 



62. tenuipennis (p. 244). 

 j' 2 . Color dark fuscous with distinct and broad postocular band, at 



least in the male 63. missiouum (p. 246). 



h 2 . Subgenital plate of male distinctly tuberculate at tip. 



