122 



Studies in Kansas Insects. 



Fig. 106. — T. latifasciatua Sc. 



Circotettix Scudder. 



Bull. U. S. Geol. Sur. Terr., 2, 265; 1876. 



Somewhat closely allied to Cythippus Fieb., but differing consider- 

 ably from it in general aspect, head closely resembling that of Trimero- 

 tropis Stal.; eyes rather smaller, somewhat prominent, separated above 

 by a space about equal to their width; antenna? but little longer than the 

 head and prothorax combined. Pronotum with the front lobe slightly 

 narrower than the head, severed behind the middle; the hind lobe, which 

 is about twice as long as the front lobe, broadening rapidly and greatly, 

 slightly gibbous; the median carina distinct on the anterior portion of the 

 front lobe, obsolete on the posterior portion, and inconspicuous on the 

 hind lobe; front margin scarcely angulate; hind margin rectangulate ; 

 lateral carinae distinct in posterior lobe, but not prominent; surface 

 slightly rugulose. Tegmina and wings much longer than the body, the 

 former with the intercalary vein approximating the radial at its tip, the 

 axillary vein free; wings peculiar, being falcate with more or less un- 

 dulate margin ; the f alcation arises from the prolongation of the preanal 

 area and the fullness of the middle of the anal area; the principal veins 

 of the latter are supported on either side by spurious veins, running very 

 close beside and parallel to them, to which the transverse veins are at- 

 tached, while the spurious veins are themselves united to the principal 

 nervures by other cross-veins, forming a more or less regular network on 

 either side of the principal veins; with this exception, the neuration of 

 the wing is unusually regular and scalariform, the veins of the apex 

 resembling somewhat their disposition in Ctyphippus. 



The type of this genus is CEdipoda undulata Thomas. CEdipoda 

 sparsa Thomas also belongs here, and I have a third undescribed species 

 of the genus from Nevada, sent me by Mr. H. Edwards. 



Circotettix undulatus Th. 



(E. undulatus. U. S. Geol. Sur. Terr., 460; 1871. 



Middle foveolas of the vertex somewhat elongate, elliptical, with a 

 median carina through it, and generally a depression at the front at 

 the top of the frontal costa; lateral foveolae very shallow, small, tri- 

 angular; the frontal costa expanding just above the ocellus and at the 



