ioo MEMOIRS ON THE COLEOPTERA 



die, where the feebly serrulate sides are rounded, thence unusually 

 converging and straighter anteriorly, feebly converging and subsinu- 

 ate basally, the apex much narrower than the base, the basal angles 

 subacute, nearly right, the margin truncate medially; surface con- 

 vex, gradually explanate laterally, the edge thin and very feebly 

 reflexed, very coarsely, confluently punctate, more transversely 

 rugose laterally, the interspaces with small, sparse and irregular 

 punctures; elytra very elongate, widest at the middle, fully two- 

 thirds longer than wide, the costae rather abruptly elevated, thin, 

 the intervals slightly concave, dull, rather closely, granularly punc- 

 tulate, the rugae unusually thin, transverse and abruptly formed, well 

 separated; abdomen closely, asperately punctate, more loosely 

 toward the sides, the last segment unmodified; hairs fine, blackish; 

 maxillary palpi unequally excavated at tip. Length 18.0 mm.; 

 width 8.5 mm. One male without locality label but probably 



collected in western Kansas strigipennis n. sp. 



8 Form moderately stout, convex, piceous-black, rough, opaque; pro- 

 thorax more than twice as wide as long, the sides strongly rounded 

 and depressed, coarsely and confluently punctate throughout, 

 broadly bisinuate at base, the posterior angles produced and acute; 

 elytra briefly oval, convex, strongly declivous behind, the suture, 

 two costae on each confluent before the apex, and the margin, strongly 

 elevated, the intervals very irregular, the epipleura sparsely punc- 

 tulate; abdomen densely punctate. Length 15.0-20.0 mm. Arizona, 



Webb. [Pelecyphorus costipennis Lee.] costipennis Lee. 



A Nearly as in the preceding but oblong-oval, the prothorax very 

 large, less transverse, three-fifths wider than long, very nearly as 

 wide as the elytra, the sides broadly, strongly and subevenly 

 rounded, the basal angles strongly produced posteriorly and acute; 

 surface coarsely, confluently punctate, convex, becoming broadly 

 concave and moderately reflexed laterally; elytra narrowed but 

 little basally, only two-fifths longer than wide, shining, the intervals 

 strongly undulato-rugose and with minute sparse granules through- 

 out, each bearing a short but very distinct pale hair; costae not 

 confluent posteriorly, the first ending at the crest of the declivity, 

 the second and marginal equal in length and prolonged to within 

 a short distance of the apex, the ends of all the costae perfectly 

 abrupt and free, without indication of extension ; abdomen strongly, 

 asperately punctate, rather sparsely so laterally, each puncture 

 bearing a very distinct subrecumbent pale fulvous hair. Length 

 (c? 1 ) 1 8.0 mm.; width 9.0 mm. Without indication of locality. 



fulvisetis n. subsp. 



Form much narrower, convex, piceous-black, shining; head opaque, 

 moderately and subevenly punctate, the dark hairs distinct; pro- 

 thorax large, three-fifths wider than long, three-fourths as wide as 

 the elytra, widest just behind the middle, where the sides are slightly 

 prominent though broadly rounded, moderately and subequally 

 converging thence to apex and base, feebly sinuate in the latter case, 

 the angles moderately produced posteriorly and acute; surface 



