120 AMERICAN COLEOPTERA. 



just visibly more than half way to the coxae ; metepisternal 

 suture straight and strongly oblique ; post-coxal arcs of first 

 ventral about one-fourth the length of the segment. 



HISTERID^E. 

 HISTER. 



H. temporalis n. sp. 



Broadly oval, black, highly polished. Prothorax strongly narrowed 

 in front, sides nearly straight, inner marginal stria entire, outer abbre- 

 viated at apical two-fifths, surface very remotely and minutely punc- 

 tulate toward the sides. Elytra with four entire dorsal striae, fifth 

 wanting, sutural represented by a few subconfluent punctures just 

 behind the middle ; oblique humeral very fine, subhumeral entirely 

 wanting. Pygidium and propygidium similarly rather coarsely, closely 

 punctate, the latter narrowly smooth at base, the former more broadly 

 smooth at apex. Prosternum finely bistriate, the striae divergent at 

 base, then parallel, their tips bent inward ; mesosternum moderately 

 emarginate in front. Anterior tibiae with four small teeth, the apical 

 one double. Length from the apical margin of the prothorax to the 

 sutural angle 4.5 mm; width, 3.8 mm. 



Arizona (Baboquivaria Mountains — Snow). 



This species is by the prosternal striae allied to servus, 

 indistinctus and defectus. The two former have the outer 

 thoracic stria entire. Defectus has the prosternal striae diver- 

 gent in front and the pygidium nearly smooth. All three are 

 considerably smaller than the present species — 3-3.5 mm. — 

 according to Horn's measurements. This may perhaps be 

 the form for which Dr. Sharp suggests the name Comes in 

 the Biologia, but as his description is limited to the state- 

 ment that it is larger than servus, and with no scutellar stria 

 I can do no more than suggest the possible identity of the 

 Mexican species with the one here described. 



H. humilis n. sp. 



Broadly oblong oval, black, shining, prothorax and elytra impunc- 

 tate. Prothorax moderately narrowed in front, the sides continuous 

 with those of the elytra, very broadly arcuate, outer stria abbreviated, 

 apical, inner stria entire. Elytra with three entire striae, the fourth 

 apical, consisting of three or four disconnected punctures, fifth want- 

 ing, sutural extending from the apex to the basal fourth ; subhumeral 

 striae absent. Propygidium and pygidium alutaceous and dull, moder- 

 ately coarsely and closely punctate, the bottom of the punctures shin- 

 ing ; pygidium smooth at apex. Anterior tibiae rather feebly serrato- 

 dentate. Length 3.5 mm. 



