Grasshoppers of Kansas. 123 



base, sulcate in the middle portion. Pronotum contracted on the an- 

 terior lobes, posterior lobe flat on the disk, rapidly expanding and punc- 

 tured; median carina a dim line, slightly raised on the front lobe; apex 

 right-angled. Elytra and wings passing the abdomen about one-third 

 their length. Wings papilioform, very broad, the anterior margin regu- 

 larly and beautifully undulated or waved ; anterior submarginal space 

 almost as broad as the elytra; nervules prominent, regularly and re- 

 markably parallel. 



Color (dried after short immersion in alcohol). Ash brown. Head 

 and thorax sometimes mottled with darker brown or fuscous. Elytra 

 marked with dusky spots, presenting a basal group, an irregular middle 

 band, those on the apical portion sporadic. Wings transparent, tinged 

 with yellow at the base, the outer half transparent or slightly fuliginous ; 

 the inner margin of this portion generally forms an irregular somewhat 

 dusky stripe, parallel with the body when the wing is fully expanded, 

 not bending inward at the hind margin; sometimes the dusky portion 

 is indicated only by dark nervules and nerves, those of the inner half 

 always being yellowish white. Posterior femora have two black spots 

 inside; the inferior channel black, or chiefly occupied by two black spots; 

 posterior tibiae are probably bluish when the insect is living. 



Dimensions: Female — length, 1.05 in.; elytra, 1.12 in.; posterior 

 femora, .54 in. ; posterior tibia?, .47 in. Male nearly as large as the 

 female, with similar proportions. 



I found this species in Colorado and Wyoming east of the mountains. 

 I also find it among the collection made by Mr. Dodge in Colorado; but 

 as it is not among his collections made in Nebraska or Kansas, and 

 does not appear to have been in the collection made by Professor Hayden 

 in Nebraska, it probably belongs nearer the mountains. 



Wing of C. lobatus S. Fn:. 107. O.undulatus. 



We have this species represented by two male specimens, marked 

 from Kansas, collected by Snow. They agree in every respect with other 

 specimens from Colorado, so it must be the species reaches slightly into 

 western Kansas, but occur in so few numbers as to be seldom found 

 by collectors. 



The almost entire absence of a black arcuate band on the wing serves 

 to distinguish this species from C. nigrafasciaUis. 



Circotettix nigrafasciattis n. sp. 



Size very large for the genus; form rather long and slender. Head 



somewhat raised above the level of the pronotum, dorsally rather smooth ; 



scutellum of the vertex ranging from slightly sulcate with scarcely a 



trace of a median carina to sulcate with a definite carina, in shape quite 



