POGONIN^E 403 



tibiae but feebly curved outwardly toward tip and with the inner erect 

 hairs short; hind tarsi very slender and not much shorter than the 

 tibiae. Length (40", 29) 9.0-10.3 mm.; width 3.25-3.5 mm. Col- 

 orado. Levette collection tenuitarsis n. sp. 



Form elongate, subparallel, rather depressed, shining, deep black, the 

 legs black with rufous trochanters; head elongate, fully two-thirds 

 as wide as the prothorax, the eyes moderate and not very prominent; 

 sulci long and deep; palpi and antennae black, the latter rather long 

 and slender; prothorax transverse and about one-half wider than 

 long, the sides rounded and well reflexed, sinuate basally and par- 

 allel in about basal sixth, the angles more than right but well de- 

 fined; base feebly oblique laterally, as wide as the distinctly sinuate 

 apex, the apical angles rounded and very obtuse; anterior impres- 

 sion deep and with a few fine punctures, the posterior obsolete; 

 basal punctures numerous and very clearly defined; foveae shallow, 

 the exterior very short and acutely linear; elytra long, but little less 

 than twice as long as wide, two-fifths wider than the prothorax, grad- 

 ually ogival apically, without trace of sinus; sides nearly straight, 

 gradually rounding basally; striae acutely deep and strong through- 

 out, even coarser and deeper at apex, still more impressed suturally, 

 minutely punctulate "basally, the seventh entire and rather deep, the 

 eighth not quite attaining^ the apex; intervals moderately convex. 

 Male with the anterior femora distinctly dentate beneath at basal 

 third, the tibiae straight, with strong inner subapical tooth, the tarsi 

 only just visibly enlarged basally; hind trochanters slightly less 

 than half the femoral length, sharp, the tarsi slender, black, long 

 though distinctly shorter than the nearly straight tibiae. Length 

 (cf) n.o mm.; width 3.8 mm. Colorado (Red Cliff), -Wickham. 



coloradensis n. sp. 



Form nearly as in the preceding, black, the legs black or piceous, shining, 

 the elytra dullish in the female as usual; head slightly elongate, with 

 moderately prominent eyes and long deep sulci; antennae rufo-pice- 

 ous, moderately long and slender; prothorax less transverse and less 

 rounded at the sides than in the preceding, a third wider than long; 

 sides broadly and strongly reflexed, feebly oblique and sinuate bas- 

 ally, becoming not quite parallel toward the very sharp and subprom- 

 inent angles; base oblique at the sides; apex sinuate, with rounded 

 angles; impressions and biabbreviated stria nearly as in the preced- 

 ing; inner fovea deep, sublinear, broadly impressed, the outer very 

 short, feebly defined; elytra three-fourths longer than wide, not 

 quite one-half wider than the prothorax, very feebly inflated pos- 

 teriorly, gradually ogival apically, the sides gradually rounding bas- 

 ally, the sinus completely wanting; striae fine, acute but not conspic- 

 uous, not punctate, the inner equally distinct and barely impressed 

 to the apex, the outer very fine and feeble, not entire, the eighth 

 abbreviated on the broad latero-apical declivity; intervals nearly 

 flat. Length (9) n.o mm.; width 3.8 mm. Colorado. Levette 

 collection reflexus n. sp. 



10 Body more oblong-suboval in form, feebly convex, deep black and 

 very shining; legs black, the coxae rufous, the abdomen rufescent 



