THE CANADIAN ENTOMOLOGIST. 319 



and strongly impressed in the middle ; last juint of llie maxillary palpi 

 strongly securiform, moderate in size; antennae long, incrassate distally ; 

 mesosternum greatly dilated toward the sides of the body, the polished 

 mes-epimera — between it and the elytral margin — very narrow and tumid; 

 legs and tarsi as in Anthicus. 



The above name is proposed for a species differing greatly from 

 Vacusus in general faci-es, sculpture and vestiture, in its more obliquely 

 securiform palpi, longer antennse, prominent tempora, very conspicuously 

 impressed occiput, and still more dilated mesosternum, the mes-epimera 

 in Vacusus being much broader and flat. In Euvncusus the greatly 

 dilated mesosternum is separated from the episterna by a strongly marked 

 suture, and the latter extend from the sides of the body nearly to the axial 

 line in front of the expanded mesosternum and are sculptured like the 

 latter, the epimera being brightly polished and sculptureless. The middle 

 cox?e are much more widely separated than in Anthicus, and are 

 emarginated by a strong external trochantin. The prosternum before the 

 coxae is very much more longitudmally convex than in Vacusus. 



E. Co/oradajius, n. sp. — Moderately stout and rather convex, opaque, 

 dark piceous-brown throughout, the prothorax slightly and the legs much 

 paler and more rufous ; antennte dusky, much longer than the head and 

 prothorax, the outer five joints larger than the preceding five ; head wider 

 than long, strongly convex, finely and not closely punctured, the inter- 

 spaces finely strigilato-reticulate ; base broadly truncate ; eyes moderate, 

 very prominent, at rather more than their own length from the base ; 

 tempora as prominent laterally as the eyes ; prothorax narrower than the 

 head, slightly longer than wide ; sides strongly, evenly rounded anteriorly, 

 thence converging and broadly sinuate to the base ; punctures stronger 

 and dense ; collar strong ; basal margin feebly defined ; surface almost 

 evenly convex ; elytra not quite twice as long as wide, very slightly wider 

 behind the middle than at base, almost twice as wide as the prothorax ; 

 humeri rounded, widely exposed at base ; apex obtusely rounded ; 

 sculpture consisting of larger nude punctures, with fine intermediate 

 punctulation bearing the pubescence, which, like that of the pronotum, 

 consists of short fine decumbent and very uniform pale hairs ; legs 

 moderate. Length, 2.4 mm.; width, 0.75 mm. 



Colorado (Leadville). Mr. H. F. Wickham. 



The type of this very interesting species is a male, the intromittent 

 spicule being slender, subparallel, abruptly narrowed near the apex, and 

 thence very slender to the tip, which is very feebly sivoUen, the upper 

 surface of the wider portion longitudinally excavated except toward base. 



