TENEBRIONID^: 99 



hair; last ventral unmodified. Length 20.7 mm.; width 12.0 mm. 



Kansas (Wallace), W. Knaus obesa n. subsp. 



B Form more parallel, convex, nearly black, the hind body shining, 

 the remainder alutaceous; prothorax (cT) four-fifths wider than 

 long, in outline nearly as in obesa but with the hind angles less 

 produced and not so acute, the surface nearly similarly sculptured 

 but with an almost entire impunctate median line, in addition 

 to the uneven punctureless areas, toward the sides broadly con- 

 cave, the sides strongly reflexed, rather thin and scarcely at all 

 serrulate; base feebly sinuate at the scutellum, broadly sinuate 

 laterally; elytra nearly as in turgescens but more shining and with 

 the small granules very much sparser and less conspicuous; 

 abdomen rather finely but strongly, sparsely and asperulately 

 punctate throughout, the last segment of the male as usual un- 

 modified; terminal joint of the right palpus (cf ) very deeply and 

 obliquely excavated, reducing the outline on the inner side to 

 nearly a slender arc, the left palpus missing in the type. Length 

 17.0 mm.; width 9.3 mm. Kansas (without further indication 



of locality) furtiva n. subsp. 



Body (9) much narrower than even the male of turgescens, and very 

 elongate, nearly black, rather shining throughout, the head opaque, 

 broadly impressed, with a rounded impression on the vertex in 

 addition, strongly, rather closely punctate throughout, the hairs 

 extremely short and inconspicuous; prothorax large, three-fourths 

 wider than long, fully three-fourths as wide as the elytra, coarsely, 

 very irregularly and confluently punctate, with a few small puncture- 

 less areas, of which two along the base have a series of very fine 

 punctures along the edge, convex, becoming concave laterally, 

 the edge thin, narrowly but rather strongly, not suddenly reflexed, 

 the sides broadly rounded, becoming feebly sinuate toward the 

 basal angles, which are somewhat obliquely prominent and notably 

 acute; base broadly truncate medially, sinuate laterally; elytra not 

 very much less than twice as long as wide, oval, widest at the middle, 

 sculptured nearly as in turgescens but with the costse higher, the 

 intervals somewhat more rugose and the minute granules very much 

 sparser as in furtiva; abdomen (9) nearly as in that form, except 

 the last segment, which is remarkably modified, the apical half being 

 depressed below the level of the basal half viewed ventrally, the 

 vertical wall bounding it anteriorly being transversely excavated 

 on its upper edge at each side and its surface medially having two 

 deep subparallel grooves, extending from the anterior wall to the 

 apex; last joint of the maxillary palpi moderate and recti-triangular. 

 Length 21.5 mm., width 10.0 mm. Kansas (Wallace). 



procrustes n. sp. 



Body (d 31 ) very slender and elongate-oval, convex, black, the anterior 

 parts and elytral depressions opaque, the elytral elevations shining; 

 head moderately punctate, rather finely and sparsely so anteriorly, the 

 hairs longer than usual, distinct, blackish; prothorax two-thirds as 

 wide as the elytra, three-fifths wider than long, widest behind the mid- 



