156 THE CANADIAN ENTOMOLOGIST. 



the carina? in front of the eye and meeting the front in an obtuse angle. 

 Face in profile rounding, about equally margining eye from the base to 

 the ocelli, front constricted at base, where it is one-third the width 

 between the antennae, the median carina obsolete at base. Pronotum 

 roundingly emarginate posteriorly, the lower posterior angle scarcely, if at 

 all, inclined backwards. 



Colour : vertex and front fuscous, the carina? light, scutellum 

 testaceous, carinas testaceous. Elytra milky, the nervures smoky brown, 

 with very faint punctures, sometimes light at base, the punctures 

 slightly more distinct. 



Posterior margin of male genital segment in the form of an 

 equilaterally triangular tooth. Styles but little longer than the tooth 

 broad at base, narrowing down to just before the apex, where they are 

 knobbed and produced into stout hooks on the inner margin. 



Described from twenty-four specimens from Neb., Kans., Colo, and 

 Utah. 



CEcleus campestris, n. sp. 



Form and general appearance of obtusus, slightly larger, darker and 

 with a broader vertex and front. Length: 9 6 mm., £ 5 mm.; width 

 2.25 mm. 



Vertex broad and short, but little over twice longer than wide, 

 meeting the front in an obtuse angle, which is produced but a trifle in 

 front of the eye. Front broad, rather flat, regularly widening from the 

 broad base to just before the apex, where it is scarcely twice as wide as at 

 the base, the median carina usually extending to base, pronotum longer 

 than in obtusus, the posterior margin broadly angulate, the lower posterior 

 angles acute and inclined backwards. 



Colour : vertex and front black, the carinae light, scutellum brownish, 

 with the five carina; testaceous and often another pair of testaceous lines 

 outside these. Elytra hyaline, the nervures yellow, heavily marked with 

 dark spots, the sutural margin light, often twice interrupted with fuscous 

 and the stigma is often fuscous marked. 



Male genital segment produced posteriorly in a rounding or obtusely 

 triangular lobe, produced at the apex into an acutely triangular tooth. 

 Styles long, set vertically, expanded towards the apex and bearing on 

 their inner faces, at nearly one-third their length from the apex, rounding 

 or cylindrical protuberances. 



Described from twenty-four examples from Lamar, Colo. 



