166 CHARLES W. LENG. 



emargination limited by a short rectangular tooth, apices separately 

 rounded ; elytra S strongly, obliquely sinuate, nearly conjointly 

 rounded. 



Sperata group. 



Thorax flattened, slightly rounded at sides, quadrate in the male, broader behind 

 in the female; elytra 9 emarginate at apex with a subapical tooth. 

 Elytra without basal dot. 



Markings not connected at margin nevadiCA. 



Markings connected at margin. 



Form stout, markings broad Kiiausii. 



Form slender, markings narrow. 



Base of thorax 9 strongly protuberant inquisitor. 



Base of thorax 9 not protuberant sperata. 



C. nevadica Lee, 1875, Trans. Am. Ent. Soc, v, 159; Horn, I. c, p. 239; 

 Schaupp, I. c p. 101, pi. 3, fig. 88 (markings are not broad enough). 

 Length 11 mm. ^.44 inch. 



Habitat. — Nevada, not recently collected. 



Coppery bronze, beneath green ; elytral markings very broad (for 

 this group), consisting of humeral lunule slightly oblique, not hooked 

 at tip, middle band with short, feebly sinuous longitudinal portion, 

 apical lunule broad, not prolonged in front ; head large, front 

 sparsely hairy, labrum not distinctly toothed ; thorax nearly cylin 

 drical, finely rugose, sides hairy ; elytral deeply not coarsely punc- 

 tured ; $ broadly subsinuate near the apex, 9 emarginate near the 

 apex, the anterior angle of the emargination rounded. 



v. Knausii n. sp. 



Length 10-12 mm.— .40-.48 inch ; width 4-5 mm.=.16-.20 inch. 



Habitat. — Salt marshes near Kackley, Belvidere, and Great Spirit 

 Springs, Kansas, occurring in July on the wet mud near the water's 

 edge of streams flowing through the marshes. 



Rather stout, moderately convex, feebly shining, bronze in color, 

 sometimes with greenish reflections on the elytra, underside and legs 

 green, tibise, trochanters and anus paler ; elytral markings broad 

 and connected at margin, consisting of complete humeral lunule, 

 obliquely descending and moderately hooked at tip, complete broad 

 middle band narrowly separated at extremity from the suture and 

 complete apical lunule prolonged toward base at both extremities; 

 head broad, eyes very prominent, interocular striae fine, frontal 

 pilosity sparse and decumbent, labrum not evidently dentate, adorned 

 with a row of setigerous punctures in front; prothorax longer than 



