jJ2S GEO. H. HORN, M. D. 



The sexual characters are not materially different from those of the 

 preceding species to which it is otherwise very closely related. It differs 

 in its shorter and stouter antennae, and by the absence of well defined 

 pale apical margin of the elytra. 



The identification of this species is due to Mr. Fauvel. 



Occurs in Colorado and Nevada, having been originally described from 

 Santiago, Chili. 



.4,. OCreatiUS n. sp. — Slender, very blaok and shining; elytra with a slight 

 bronze tinse and narrowly margined at tip with testaceous; coxae, tibiae and tarsi 

 piceous, femora yellow; antennae black, basal joint testaceous, shorter than the 

 head and thorax, gradually thicker externally, joints fi-10 as wide as long; head 

 oval, slightly narrowed behind the eyes, coarsely very sparsely punctate at the 

 sides; beneath with very few punctures; thorax not wider than the head, longer 

 than wide, slightly narrower posteriorly; sides sinuate; surface very coarsely 

 sparsely punctured, a broad median smooth space; elytra a little wider and longer 

 than the thorax, longer than wide conjointl)', sparsely and rather coarsely punc- 

 tured, shining, very sparsely pubescent ; abdomen above shining, very sparsely 

 pubescent; abdomen above shining, very sparsely punctate and pubescent; be- 

 neath a little more distinctly punctate. Length .Ifi— .18 inch : 4—4.5 mm. 



Male. — Anterior tarsi moderately dilated; last ventral with feoble oval emar- 

 giuation and slight triangular impression. 



i^emre/e.— Anterior tarsi slishtly dilated; last ventral entire. 



The elytra are much more sparsely punctured than in injimus, but less 

 coarsely than in sobrinus. The legs are quite constant in the relative 

 color of the parts, but vary somewhat in the degree of color. 



Occurs in various parts of California from the middle regions south- 

 ward. 



A. sobrinus Erichs. — Form slender, elongate, brownish or piceous, moder- 

 ately shining : legs pale testaceous : antennae shorter than the head and thorax, 

 somewhat thicker externally, brownish, apical and two basal joints paler, joints 

 7-10 as wide as long; head quadrate oval, shining, sparsely coarsely punctured; 

 beneath more coarsely punctate ; thorax not wider than the head, narrower behind ; 

 sides smooth, longer than wide, median space smooth at sides, very coarsely and 

 rather closely punctate ; elytra a little wider and longer than the thorax, longer 

 than wide conjointly, coarsely punctate, intervals smooth shining, sparsely pubes- 

 cent, color usually paler than the thorax, the apex conspicuously so ; aijdomen 

 shining, very sparsely pubescent, sparsely punctate; beneath the segments paler 

 at tip, sparsely punctate. Length .1 8— .22 inch ; 4.5 —5.5 mm. . 



Sexual characters as in acreatns. 



'i'his species is easily known among the piceous species with oblong 

 thorax by its very pale yellow legs. 



Occurs everywhere in our fauna east of the Rocky Mountains. I 

 have one specimen from Fort Yuma. California. 



