26o DAVENPORT ACADEMY OF NATURAL SCIENCES. 



ful purpose in Tritxaliiice that (Edipoda did in (Edipodiuce, and was 

 employed as a convenient appellation for species that did not fall in 

 any other genus. 



Key to Stenobothrus, Fisch. 



A.I Tegmina unspotted. Posterior tibia; never red. 



B.' Median carina of the vertex obsolete. Lateral carina; of the pro- 

 notum divergent from the first sulcus. Posterior margin of the 

 metazone angulate. Disk much broader at the posterior than at 

 the anterior margin i. — Ci/rfipeiinis, Harr. 



B.2 Median carina of the vertex slight but distinct. Lateral carinse 

 of the pronotum divergent from the second sulcus. Posterior 

 margin of the metazone rounded. Disk not much broader at the 

 posterior than at the anterior margin. . . . 2. — Coloradensis, n. sp. 



A. 2 Tegmina spotted more or less distinctly. Posterior tibife red. 



B.' Lateral lobes of the pronotum not much narrower at the lower 

 margin than at the lateral carinse. Median carina of the i)rono- 

 tum cut a little in front of the middle. Tegmina about as long as 

 (female) or longer than (male) the abdomen, distinctly spotted. . 

 3. — Brun/iciis, Thos. 



B.2 Lateral lobes of the pronotum much narrower at the lower mar- 

 gin than at the lateral carinae. Median carina of the pronotum 

 cut a little behind the middle. Tegmina about half (male) or less 

 than half (female) the length of the abdomen .4. — Sordid//s, n. sp. 



I. Stenobothrus curtipennis, Harr. 



Locusta curtipennis, Harr., 1835. Cat. Ins. Mass., 56. 



Lociista (yChloealtis) curtipennis , Harr., 1862. Treat. Lis. Inj. Veg., 

 184, pi. iii, fig. I. 



Locusta (^Chloealtis) curtipennis, Rathvon, 1862. Rept. Com. Agr., 

 368, fig. 28. 



Stenobothrus curtipennis, Scud., 1862. Jour. Bost. Soc. Nat. Hist., 

 VH, 456. 



Sfettobothrus curtipennis. Scud., 1862. Can. Nat., VH, 286. 



Stenobothrus curtipennis, S. L Smith, 186S. Proc. Port. Soc. Nat. 

 Hist., I, 148. 



Stenobothrus curtipennis. Walk., 1870. Cat. Derm. Salt., IV, 754. 



Stenobothrus curtipennis, S. I. Smith, 1872. Rept. Sec. Agr. Conn., 

 376. 



In part, Stenoboth'nts curtipennis, Thos., 1873. Syn. Acrid. N. 

 Am., 91. 



