NORTH AMERICAN COLEOPTERA. -43 



rather sparsely punctulate. Body beneath more shining than above, moderately 

 closely punctate, punctuation intermixed, the coarser punctures larger on the sides 

 of the prothorax. Length .20-.26 inch; 5-6.5 mm. 



For many years this species has been labeled in our cabinets hejj-ificus 

 Cand., and is so recorded in the Check-List. From a letter written by 

 Candeze (Aug. 25, 1871) I received the following note : " The Estheso- 

 pus you send seems to me distinct from hepaticus and allied described 

 species. It is proportionally narrower, and its prothorax longer compared 

 with its width. " The last sentence gives the only characters, which 

 seem not very great considering a very evident variability to a slight 

 degree in the specimens before me. I have, however, adopted the view 

 that it is distinct, from the fact that the synoptic table above quoted 

 gives to hepaticus a style of thoracic punctuation similar to that 

 described for claricoJlis. The facies of this species is very like the pre- 

 ceding two. The most striking difference between this and the following 

 species is in color, the other differences will be alluded to under that 

 species. 



Collected by me at Camp Grant, Arizona. 



E. dispersus n. sp. — Form moderately robust, reddish brown, moderately 

 shining, sparsely clothed with short yellowish pubescence. Antennse slender, 

 slightly longer than the thorax. Head convex, coarsely not closely punctate, the 

 finer punctures scarcely evident. Thorax as long as wide, sometimes a little lon- 

 ger, sides nearly parallel, slightly arcuate in front, disc convex, basal plicse ab- 

 sent, surface moderately closely punctate, punctuation intermixed and exactly 

 equal over the entire surface. Elytra a little wider behind the middle than the 

 thorax, sides feebly arcuate, surface moderately deeply striate, strise rather coarsely 

 punctured, intervals flat, slightly convex near the base, irregularly biserrately 

 punctulate. Body beneath moderately densely punctate, punctures intermixed, 

 denser on the abdomen, coarser on the sides of the pronotum. Length .22-. 26 

 inch ; 5.5-6.5 mm. 



Differs from the preceding species primarily in color. The antennae 

 are a little longer, the elytra intervals flatter and the thoracic punctuation 

 much more nearly equal. This species is the humilis of the Check-List, 

 but of this species Candeze states that the thorax is " dupliciter punctato ; 

 basi lateribusque punctis majoribus adsperso, " as described above for 

 claricolUs. 



Occurs in Texas, Utah, Arizona and southern California. 



K. i)U.<«io n. sp. — Eufo-testaceous, sub-depressed, moderately shining, very 

 sparsely pubescent. Antennfs slender. Head convex, punctuation not dense, the 

 fine punctures not evident. Thorax a little wider than long, narrowed in front, 

 sides parallel at posterior third, arcuate in front, disc moderately convex, punc- 

 tuation intermixed, equally disposed, the coarser punctures numerous but not 

 large, the finer punctures scarcely evident. Elytra a little wider behind the mid- 



