128 AMERICAN COL.EOPTERA. 



the median longitudidal sulcus ; the latter of which is very feeble, 

 its sides scarcely interrupting the basal depression. The metasternal 

 fossse are obliquely arcuate instead of foveiform as elsewhere. 



E. Iseviveiitris sp. nov. — Broadly oval, moderately convex, rufotestaceous. 

 Head transverse, rugosely punctate, median sulcus represented by a somewhat 

 vague posterior depression; eyes very prominent, tempora very short; antennae 

 passing the middle of the prothorax, the tenth joint a little transverse, all the 

 others longer than wide; the. club Dot very abruptly formed. Prothorax very 

 slightly wider than the head, subquadrate, slightly wider than long, sides nearly 

 straight, just visibly rounded before the middle and faintly sinuate posteriorly ; 

 surface rather finely and scarcely rugosely punctate, disk convex anteriorly, 

 without median sulcus; a median fovea each side at about the middle, which is 

 confluent posteriorly with the transverse basal impression. Elytra broadly ovate, 

 twice as wide as the prothorax, coarsely punctate-striate ; intervals scarcely 

 wider than the striae, the third distinctly more convex from base to middle, the 

 seventh acutely carinate throughout. There, is a small but distinct subbasal 

 impression involving chiefly the third and fourth striae. Under surface almost 

 devoid of sculpture, the usual post-coxa] fovea; of the metasternum obsolete. 

 Length 1.4 mm. 



Hub. — Oregon (Astoria). A single example in the Hubbard 

 and Schwarz collection. 



In the unique type the middle and hind tibiae are armed within at 

 the apex with a slender acute spine, which projects nearly in line 

 with the axis of the tibiae. That of the middle tibia is smaller, and 

 the front tibia is either unarmed, or so feebly so that the spine is 

 not distinct. It is probably a male character. 



E. strenuiiM sp. nov. — Moderately robust, dark brown, legs and antenna; 

 rufous. Head densely rugosely punctate, median sulcus represented by a posterior 

 depression ; eyes moderate, tempora about one- half as long as the eyes; antennae 

 passing the middle of the prothorax, the tenth joint fully as long as wide, the 

 eighth one-half longer than wide. Prothorax distinctly transverse, widest very 

 slightly in advance of the middle, the sides a little convergent but nearly 

 straight in front, faintly concave behind; surface coarsely rugosely punctured, 

 the transverse depression deeper at sides as usual, the median sulcus consisting 

 of a larger anterior and smaller posterior impression, the latter bounded by two 

 feebly elevated ridges, which interrupt the basal depression; side margins flat- 

 tened and slightly reflexed. Elytra oblong-oval, sides broadly arcuate and sub- 

 parallel ; coarsely punctate-striate, intervals 3-5-7 acutely costate. Meso- and 

 metasternum and tirst ventral segment not punctate, but marked with longitu- 

 dinal rugae; those of the mesosternum tine and rather distinct; of the metaster- 

 num longer and coarser, radiating from the post-coxal fovea?; and those of the 

 first ventral very coarse, parallel, extending the whole length of the segment 

 throughout its width. (PI. IV, fig. 22). Length 1.8 mm. 



Hub. -Colorado (Ouray, 7500-8000 ft.). 



Described from a single example of undetermined sex, taken by 



