590 ColeojDterological Notices, VI. 



fifth ventral is flattened and reetilinearly and broadly truncate at 

 apex, the genital segment being broadly bilobed and deeply im- 

 presso-canaliculate along the middle. 



2. A. deiiudatus n. sp. — Oblong-elongate and parallel, feebly convex, 

 rather dull and alutaceous, black, the elytral apex slightly rufescent from dia- 

 phaneity; apex of the abdomen except the base of the fifth segment bright tes- 

 taceous; posterior legs black throughout except the base of the femur and the 

 trochanters which are red, the tarsus ruf o-piceous ; middle legs corresponding 

 in color except that the ])asal third of the femur is red ; anterior legs pale ruf o- 

 testaceous throughout; antennae pale testaceous; pubescence very short, fine, 

 decumbent and sparse, rather dark in color on the elytra and inconspicuous. 

 Head three-fourths as wide as the prothorax, dull ])ut smooth, very obsoletely 

 and sparsely punctulate, the impressions large and strong; epistoma very 

 ■wide, with a polished and rather pale border, the labrura very transverse; 

 eyes somewhat large and prominent; antennse somewhat stout, one-half longer 

 than the prothorax, the last three joints larger, the tenth about as long as wide, 

 not much narrowed at base, fifth distinctly dilated. Prothorax three-fifths 

 wider than its median length, the sides parallel, feebly and almost evenly 

 arcuate, straight toward the Ijasal angles, which are obtuse but not rounded 

 and not in the least prominent; apical angles right and slightly blunt, apex 

 almost rectilinearbv truncate throughout the width, the base ■\\ith a very 

 abrupt and broad arcuate median lobe; disk finely and feebly granulato- 

 reticulate, smooth and alutaceoirs, slightly rougher between the submarginal 

 line and the side margin, the latter feebly reflexed as usual; punctures toward 

 the middle extremely minute and sparse but abrupt and distinct under sufli- 

 cient power. Elytra three-fifths longer than wide, one-fifth wider than the 

 prothorax, i^arallel and feebly, evenly arcuate at the sides, the apex Ijroadly 

 rounded and subtruucate, the lateral edges reflexed and the apices subexplan- 

 ate; sutural angles right, not rounded; disk confusedly though feebly and 

 subtransversely rugose, the punctuation fine and very indistinct. Under sur- 

 face finely but distinctly cinereo-pubescent, the legs well developed. Length 

 3.3-4.0 mm.; width 1.25-1.5 mm. 



California (north of San Francisco). 



The three examples before me are males, the apex of the fifth 

 ventral being transverse and abruptly and deeply sinuate at the 

 middle, the genital segment being deeply bilobed. In the female 

 the legs are doubtless paler. This species differs from sculptilis 

 in having the sides of the prothorax very feebly and almost evenly 

 arcuate and not sinuate toward the basal angles, which are obtuse; 

 the apical angles are occasionally" feebly prominent anteriorh'. 



3. A. disjlinctus n. sp. — Oblong, subi)arallel, feebly convex, dull, the 

 elytra shining, the integuments strongly granulato-reticulate, much more ob- 

 soletely on the elytra; body black throughout, the apices of the elytra pale; 



1 



