H. ('. FALL. 125 



is well defined throughout, hut deeper at its extremities; an impression within 

 the front angles, and usually a smaller fovea or depression on either side of the 

 median sulcus at or just before the middle; margin not distinctly crenulate. 

 Elytra about twice as wide as the prothorax, twice as long as wide or nearly so, 

 sides feebly arcuate and subparallel to beyond the middle, thence acutely nar- 

 rowed to apex; striae feebly impressed on the disk, a little more noticeably at 

 sides; punctures coarse, a little less wide than the intervals toward the suture, 

 but scarcely so laterally; intervals nearly flat or slightly convex, the convexity 

 increasing somewhat toward the margin. Metasternum distinctly punctate, and 

 anteriorly with short rugte radiating from deep post-coxal foveas. First ventral 

 segment rather sparsely and a little more finely punctate, and more or less longi- 

 tudinally rugose; following segments remotely finely punctulate. Tibiae all 

 moderately strongly arcuate in the male, feebly so in the female. (PI. Ill, fig. 

 16). Length 2.4-2-6 mm. 



Hub. — Alaska, Ft. Wrangel (Wickham); Nushagak ; Sitka; 

 Aleutian Islands. 



Typical specimens of Mannerheim's quadricollis, sobrinus and 

 protensicollis are in the LeConte collection. These appear to lie 

 identical, and LeConte's course in uniting them under the last name 

 is probably correct. 



E. suspectllS sp. nov. — Very closely allied to the preceding and differing 

 very little, aside from the somewhat shorter elytra and the character of the 

 elytral intervals as described in the table. The size is, however, distinctly 

 smaller and the elytra a little less shining. It may possibly be only a geographi- 

 cal race of protensicollis. but as the differences mentioned are quite constant in 

 the fairly good series of both which I have examined, I shall risk giving it a 

 name. (PI. Ill, fig. 17). Length 2-2.25 mm. 



Hub. — Oregon (Hood River); California (Kern Co.; Panamint 

 Mts. ; Pomona). 



E. «l«*sertus sp. nov. — Again allied to protensicollis, and still more closely to 

 suspectus, but at once distinguished as follows: The prothorax is smaller, dis- 

 tinctly transverse, the front angles a little less conspicuously lobed, the median 

 sulcus deeper, its sides more distinctly interrupting the tranverse subbasal im- 

 pression. Elytra much less elongate than in protensicollis. and more obtusely 

 rounded at tip than in either of the two preceding species. The third interval 

 is moderately elevated in basal two-thirds, and the fifth and seventh are costate 

 throughout; the other intervals are perfectly flat. The color varies from testa- 

 ceous to piccous brown. (PI. Ill, fig. IS). Length 2-2. 2 mm. 



Hab. — Arizona (Tacna ; " Catal. Mts."; Yuma); California 



(Palm Springs). Hubbard and Schwarz collection. There are 



examples in the Horn collection from both Arizona and Cali- 

 fornia, but without specific locality. 



E. hii'tus Gyll. — Black, legs and antennae brown. Prothorax one-hall' as 

 w T ide as the elytra, nearly square, with moderate, long, recumbent or subrecum- 

 bent hairs, which are condensed along the side margins, and in narrow longitu- 



TKANS. AM. KNT. SOC. XXVI. NOVEMBER, 1899. 



