r20l T1IK CANADIAN ENTOMOLOGI8T. 



less arcuate or more rapidly rounding inwardly at the base, becoming 

 rounded and parallel anteriorly, the side margins sometimes not quite 

 attaining the base, the impressions feeble, the median stria fine ; 

 elytra oblong-oval, widest at the middle, moderately convex, the 

 foveae seldom distinct ; male and female not differing much. Length, 

 (J , $ , 15. 0-17.0 mm.; width, 6.G-6.4 mm. Calaveras Co., near the 

 "Big Trees" sequoiarum, Cr. 



• A — Nearly as in sequoiarum, except that the prothorax is relatively 

 larger and rather more narrowed from near the apex to the base, 

 with straighter sides, which however curve similarly inward at base; 

 elytra differing decidedly, being blackish-piceous, more shouldered 

 at base, widest before the middle, the sides thence gradually con- 

 verging and broadly arcuate to the more ogival apex, the punctures 

 somewhat coarser. Length, ^ , 16.5 mm.; width, 6.4 mm. Levette 

 cabinet. Probably from the vicinity of Calaveras Co. lugubris, Csy. 



-2 2 — Elytral punctures coarse, deep and very conspicuous ; sides of the 

 prothorax moderately converging and nearly straight behind apical 

 third, thence strongly and conspicuously rounding to the base, the 

 disc evidently rugose near apex and base throughout the width, 

 smooth medially 23 



Elytral punctures very shallow and much less conspicuous ; sides of the 

 prothorax similarly converging and nearly straight, but much less 

 rounding inwardly at base, the disc nearly smooth apically as well as 

 medially, but rugulose along the base 24 



Elytral punctures wholly obsolete, the surface perfectly smooth ; prothorax 

 as in the preceding, but smooth throughout, except toward the sides 

 along the base, the labrum more prominent medially than in either of 

 the preceding groups 25 



.23 — Body very dull and densely alutaceous throughout above, shining 

 beneath, deep black ; head evidently rugulose, smoother but scarcely 

 punctate anteriorly, the labrum arcuately prominent medially ; 

 antennae short and rather stout ; prothorax much wider than long, 

 with the sides as converging as in Tularensis, three-fourths as wide 

 as the elytra ( $ ), the base broadly bisinuate ; elytra widest at the 

 middle, slightly more than one-half longer than wide, oblong-oval, 

 rather convex, somewhat shouldered at base, rapidly, acutely ogival 

 at apex, the surface strongly micro-reticulate, the punctures sub- 

 . contiguous, deeper, better defined and somewhat confused laterally 



