368 MEMOIRS ON THE COLEOPTERA 



one-half wider than long, strongly trilobate, parallel and feebly 

 arcuate at the sides, the punctures small, sparse externally, feeble 

 but close-set and bearing longer bristling setae on the median section, 

 which is only feebly convex, much depressed below the lateral sec- 

 tions and with the median line very feebly impressed; scutellum with 

 small sparse foveolae; elytra nearly three-fifths longer than wide, 

 barely at all wider than the prothorax, parallel, the humeri not 

 laterally prominent but moderately so dorsally; disk somewhat 

 impressed toward base suturally, convex laterally to the steep deep 

 slopes; foveolae nearly as in saucia but larger, the lateral punctures 

 small, feeble and well separated; pygidium very convex, with small 

 foveolae and in part scabriculate, having sparse, very minute hairs 

 as in saucia; legs slender; external tooth of the hind tibiae beyond the 

 middle and obsolescent, barely traceable; hind tarsi slender, rather 

 short. Length 11.5 mm.; width 4.7 mm. Kansas (Clark Co., 

 elevation 1962 feet), F. H. Snow setosifrons n. sp. 



Body less slender, larger in size, parallel, black throughout; erect setae 

 bristling and rather long, fulvous as usual; head as in the preceding 

 but still more convex, almost tumidulous and with a large oval 

 punctureless spot on the occipital slope, not suggested in setosifrons, 

 also with the anterior carina not attaining the strongly reflexed apex 

 and obsolete posteriorly at a long distance from the foot of the 

 anterior slope, and not almost attaining the latter as in the preceding 

 species; bristling setae nearly similar, the eye-canthus even more 

 prominent and acute; prothorax less transverse, not quite one-half 

 wider than long, parallel, evenly and very feebly arcuate at the sides, 

 the lobe of the apical angles similarly much retracted; surface almost 

 similarly trilobed and punctate; elytra about as wide as the pro- 

 thorax, three-fifths longer than wide, in all respects nearly as in 

 setosifrons and similarly impressed suturally toward the scutellum, 

 but with the foveolae still narrower, more elongate and decidedly 

 denser, also deeper; propygidium with transverse wavy incised lines; 

 pygidium large, strongly convex, differing greatly from that of any 

 of the preceding species in having concentric ssulpture of short fine 

 irregular incised lines and with a few small foveolae basally, the hairs 

 sparse and very minute; anterior tibiae as in setosifrons, the upper 

 tooth, at apical third, slender; hind tibiae with barely a vestige of an 

 external cariniform protuberance well beyond the middle; hind 

 femora strongly compressed, four times as wide as the tibiae, somewhat 

 as in the preceding. Length 12.3 mm.; width 5.2 mm. Texas 

 (Waco). A single example quadricollis n. sp. 



5 Form stout, piceous in color, feebly shining, the legs reddish-brown; 

 punctures all bearing short erect black hairs; head coarsely, not 

 densely punctate, the occipital region transversely depressed; clypeus 

 semicircular, the margin widely reflexed and fimbriate with short 

 hairs, strongly carinate at the middle, the surface smooth; prothorax 

 transverse, narrower behind, the sides slightly arcuate in front, 

 oblique behind, the hind angles acute, smooth and shining, the 

 anterior deeply incised, forming an auriculate lobe; disk trilobed, the 

 median section much the widest and depressed; surface with rather 



