740 Coleopteroloyical Notices, VI. 



where the sculpture becomes obsolete; base broadly arcuato-truncate, the angles 

 rounded, the tempora long, becoming straight and jiarallel to the eyes, Avhich 

 are small, very convex and prominent; antenmc about as long as the head and 

 prothorax, slender, the three outer joints thicker. Proihorax convex, (juite 

 distinctly narrower than the head, not quite as long as wide, rather broadly 

 rounded at apical third, the sides thence convergent and feebly sinuate to the 

 base, which is narrowly margined and much narrower than the disk; punctures 

 fine and verj' dense. Eli/trn three-fourths longer than wide, but slightly more 

 than twice as wide as the prothorax; sides parallel and arcuate; apex obtusely 

 rounded; humeri nioderatoly ex])osed at base, rounded; seutellar impression 

 obsolete, the omoplates \ery feeble; xJ'inctures somewhat coarse and sparse. 

 Abdomen alutaceous, finely, densely punctate, pubesceht, blackish with the 

 apex pale. Z(y/.s slender, the femora somewhat stout. Length 2.0-2.5 mm. ; 

 width 0.65-0.8 mm. 



Colorado (Greeley); Iowa. 



The four specimens before me vary greatly in size as is usual 

 in this genus, and the description is drawn from the male, this sex 

 having the anterior tibiae very strongl}' arcuate aijd pubescent 

 within, the intermediate more apically and less strongly arcuate, 

 the anterior trochanters feebly and obtusely prominent behind , 

 the intermediate unmodified, the fifth ventral moderate in length 

 and evenly rounded behind, unmodified or only slightl}' flattened 

 on the disk. The female has the prothorax smaller, and the elytra 

 shorter and relatively broader, and, in one specimen, completeh^ 

 infuscate except toward the humeri and sides before the middle. 



9. S. mollis n. s]). — Slightly stout, convex, pale brownish-testaceous 

 throughout, the antenmu blackish at apex, the elytral suture not darker, shin- 

 ing, the head, pronotum and a1)domen alutaceous ; pubescence not dense, 

 rather short and coarse, the coarser hairs of the elytra inclined. Head slightly 

 transverse, finely, very densely punctate, with a narrow impunetate line 

 except toward base, where the punctures become feeble; basal angles some- 

 what narrowly rounded; tempora long, parallel and feebly arcuate; eyes 

 small, very convex and prominent; antennee rather longer than the head and 

 prothorax, slender, the club abrupt and distinct. Prothorax small, much nar- 

 rower than the head, not quite as long as wide, evenly and circularly 

 rounded anteriorly, the sides thence convergent and sinuate to the base which 

 is very widely and strongly margined, slightly dilated at the sides and dis- 

 tinctly narrower than the disk ; smface finely, densely punctate. Kli/tra 

 three-fourths longer than Avide, distinctly more than twice as wide as the pro- 

 thorax, parallel and broadly arcuate at the sides, evenly and not very 

 broadly rounded at apex; humeri obtuse and moderately exposed; post-scu- 

 tellar impression distinct at each side of the suture; omoplates large, very 

 feeble; punctures moderately coarse and sparse. Ahdomeii minutely and 

 densely punctured, the legs rather short and stout. Length 2.2 mm. ; width 

 0.75 mm. 



