490 CASEY 



the squamules, which are rather close throughout, become denser 

 at each side of the middle ; elytra barely twice as wide as the 

 prothorax and scarcely twice as long as wide, of the usual oval 

 form, the double series of coarse punctures separated by a 

 scarcely elevated row of squamiferous punctures, the squamules 

 similar to those of the more elevated ridges, though scarcely so 

 close-set ; propleurae only moderately sparsely punctate, the ab- 

 domen akitaceous and micro-reticulate, somewhat coarsely, 

 sparsely punctate. Length 3,9 mm.; width i.i mm. x\rizona 

 (near the southern boundary) decipiens Horn 



13 — Form rather stout, moderately convex, rather pale red-brown, 

 the anterior parts darker ; head moderately large, a little longer 

 than wide, the sides from the antennae moderately converging and 

 feebly, evenly arcuate to the basal angles, which are distinct 

 though rounded, the base broadly truncate, the occiput only 

 minutely impressed at the extreme base ; surface above and 

 beneath, like that of the pi'othorax, coarsely and densely punc- 

 tate and opaque, the fulvous squamules rather dense and conspicu- 

 ous, particularly close, semi-erect and broadly dense along the 

 longitudinal ridges of the pronotum ; eyes longitudinal as usual 

 above, very minute and consisting of three facets beneath ; pro- 

 thorax but little narrower, though distinctly shorter, than the head, 

 as wide as long, widest anteriorly, where the sides are evenly 

 rounded, thence rather strongly converging and nearly straight to 

 the base, the sides with a dense erect fringe which is wanting at 

 apex and base, the yellow squamules very dense in two lateral and 

 two median spots at the base, the surface deeply and obtusely sul- 

 cate from base to apex ; elytra three-fourths longer than wide, 

 fully twice as wide as the prothorax, oval, the sides strongly and 

 rapidly rounding to the base but much more gradually behind, the 

 ridges acutely and strongly elevated, the two punctured series of 

 the intervals separated by a scarcely elevated line of squamiferous 

 punctures which are almost similar to those of the ridges, the 

 punctures of the series becoming obsolete toward apex ; abdomen 

 dull, finely, not very sparsely punctate. Length 3.6-4.0 mm. ; 

 width 1.1-1.3 mm. California (Inyo Co.). armatus Horn 



Form still stouter, dull, the elytra but little paler though less dull, red- 

 brown in color ; head distinctly longer than wide, the epistoma 

 more anteriorly extended than in armatus^ the sculpture, squamae, 

 eyes and basal iinpression of the occiput similar, the sides more 

 parallel, the angles more broadly rounded and transverse at base 

 to the neck ; prothorax very slightly narrower but much shorter 

 than the head, scarcely as long as wide, widest near apical third, 

 with the sides broadly rounded, becoming but feebly converging 

 and very graduall}^ almost straight posteriorly, the dull rugose sur- 

 face, squamae, lateral fringe and basal tufts as in armatus^ the 

 median sulcus similarly entire but narrower and very much more 

 feeble, not marked along the sides by such close-set squamules ; 

 elytra rather broader, barely three-fourths longer than wide, 



