894 ZOOLOGY INSECTS. 



respects: the anterior and middle femora are not more slender than is usual 

 in this genus; the prosternal spine is not unusually broad at the base, but is 

 blunt and transverse, as described; the oblique brownish bands on the pos- 

 terior femora wanting. But the specimen is a male, and shows the unusually 

 broad cerci of this species; there does not appear to be any blunt tooth at 

 the tip of the last abdominal segment, which has the same form as in C.femur- 

 ndinoii. It is, therefore, quite probable I was mistaken in this respect in my 

 original description; but if I am correct in regard to the former, then this is 

 a new species. This species appears to be closely allied to C. femur-rubrum 

 on the one side and to C. keelerii on the other. 



GALOPTENUS BIVITTATtJS, Say. 



Gryllus bimttatvs, Say, Jour. Acad. Nat. Sci. Pbila., iv, 308. 

 Locusta leucostoma, KiRBY, Faun. Bor.-Am. Ins., 250. 

 Acridium sanfltiinipex, IlARR., Hitcb. Rep., 583. 

 Acridium flarm'tttatum, UARR., Treat, ed. 1862, 173. 

 Acridium bivittatum, THOS., Traus. 111. Agl. Soc., v, 449. 

 Acridium leucostomum? , DE HAAN, Bidjr. Keun. Ortbop., 143. 

 Acridium femoratumf, DE HAAN, Bidjr. Kenu. Orthop., 144. 

 Caloptenux femora-tits, BFRM., Hand. Ent., ii, 308. 

 Caloptenus birittatus, UHLER, Say's But. ed. Lee., ii, 238. 



The specimens of this species in the collection, captured at various 

 points of the routes explored, appear to be unusually large, and, although 

 preserved in alcohol, retain sufficient of the coloring to show that they belong 

 to the greenish-yellow or olive variety. 



CALOPTENUS YARBOWII, xp. nor. 

 PLATE XLV, FIG. 6. 



Female. Very similar in appearance and form to C. bivittatatus&ny, to 

 which it is very closely allied. 



Vertex scarcely sulcate ; the frontal costa broad and slightly sulcate ; 

 antennae scarcely reaching the tip of the pronotum ; the joints distinct, each 

 joint being somewhat enlarged at the tip. The transverse incisions of the 

 pronotum distinct; the posterior one behind the middle ; median carina 

 distinct, though not elevated. Elytra and wings reaching the tip of the 

 abdomen; the intercalate vein of the elytra present. Posterior femora not 



