AMERICAN COLEOtTERA. 97 



ately convex, apices obliquely truncate with the outer angle more prominent; 

 surface equally punctured, punctures not coarse, more densely placed than on 

 thorax. Body beneath, legs and antennae similar in color to upper surface. 

 Meso- and metathorax sparsely, abdomen finely, epipleurse coarsely punctured 

 and sparsely clothed with golden hairs. Antennce nearly half the length of 

 body, thirdjoint slightly longer than fourth. Hale with minute spur on inner 

 side of anterior tibire below the middle. Length .22 — .28 inch; 5.5 — 7 mm. 



Colorado, Dr. Samuel Lewis. Very abundant under damp logs at 

 Camp Grant, Arizona. 



This species is evidently allied to lonrjicornis, Gerst., of which speci- 

 mens are unknown to me. This species appears from the description 

 to be abundantly distinct from the one above described, and is about 

 equal in size. Resembles 'punctatus, Lee, in form. 



Engis californica. n. sp. — Elongate oval. Head ferruginous, moderately 

 coarsely but not densely punctured. Thorax ferruginous, one-fourth broader 

 than long, sides moderately rounded from base, scarcely narrow at apex; disc 

 moderately coarsely and densely punctured. Elytra not broader than thorax, 

 black or brownish with a humeral spot ferruginous; surface with regular strife 

 of fine punctures moderately closely placed. Body beneath brownisl^ with the 

 entire margin and tip of abdomen somewhat paler. Legs ferruginous antennae 

 brown. Length .10 — .14inch; 25 — 3.5 mm. 



This species may be readily distinguished from qnadn'maculata, by 

 the ferruginous head and thorax and by the elytra having only a 

 humeral pale spot. The latter is irregular in form and extent, usually 

 gradually vanishing in the darker color around it. The thorax is 

 also less rounded in front, more convex and densely punctured. It 

 resembles somewhat the figure of E. humeralis^ Fabr. (Duval, Genera, 

 pi. 75, fig. 357), but the thorax is more rounded and scarcely nar- 

 rowed in front. 



Specimens in my cabinet from Fort Crook, Sacramento, and Fort 

 Tejon, Cal. Occurs under bark or in fungi. 



Descriptive Catalogue of the species of NEBRIA and PELOPHILA of the 



United States. 



BY GEO. H. HORN, M. D. 

 The two genera Xehria and Pelophila appear to be sufiiciently distinct 

 to be retained apart. The following tables, the result of a short study 

 of our species, may be useful to those to whom the widely scattered 

 specific descriptions are inaccessible. 



NEBBIA. — Anterior tarsus of male moderately or feebly dilated; antenn.-c 

 slender, joints all cylindrical, equalling in length two-thirds or more 

 the length of the body ; scutellar stria of elytra always distinct. 



