96 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



transverse impression and a pair of approximate spots on the disc in 

 line with the two other pairs on the anterior margins of pronotum and 

 vertex. Elytra sub-hyaline soiled yellowish-brown. Tergum and 

 venter black, margins yellow. 



d^, face and all below very dark, a few light arcs on the upper part 

 of the front, vertex very dark, an irregular spot on the tip, a ring 

 around the ocelli and the "X" light, pronotum and scutellum heavily 

 marked with fuscous brown, elytra dark, the nervures lighter. 



Genitalia: ?, ultimate ventral segment broad on basal third, be- 

 yond this the lateral margins are sharply constricted and the whole 

 surface depressed, lateral angles produced, forming acute teeth, nearly 

 halt as long as the width of segment at base, posterior margin deeply 

 emarginate between these teeth, forming two smaller rounding or ob- 

 tusely angular teeth separated by a median notch. Pygofers inflated, 

 slightly exceeded by the stout ovipositor: (^, valve very large, trian- 

 gular, the apex slightly produced, plates much enlarged, broad at base, 

 where they are convex, extending beyond the valve about half its 

 length, without narrowing, their truncate tips standing nearly perpen- 

 dicular to the plane of the valve, and together with the short pygofers 

 forming an enclosed cavity, spines on pygofers stout, rather long, 

 extending down outside the plates. 



Described from eight females and one male from Colorado, one 

 from Van Duzee collection, three from Prof. Pammel, and four females 

 and one male from Prof. Gillette. 



EUTETTIX SCABER n. Sp. 



Form of lurida, dark, fulvous-brown above, with a large angular 

 area on the outer base of the elytra. Length, $ 6.5 mm; c? 6 mm. 

 Width, 1.75 mm. 



Vertex parallel-margined, over three times wider than long, trans- 

 versely depressed back of the rounding margin, front broad, wedge- 

 shaped, longer than in hirida, the clypeus hardly widened at the tip, 

 genae with the outer margin rounding. Pronotum broad, convex, 

 highest behind, the humeral margin straight, parallel with the margin 

 of the scutellum. Elytra broad, only slightly overlapping behind, ner- 

 vures indistinct. 



Color: The vertex reddish-brown anteriorly with five white spots 

 confluent with the margin, posteriorly with two white spots just- before 

 the margin slightly nearer each other than the eyes, face light-yellow, 

 a black spot against the outer margin of the lorse, pronotum and 



