702 Goleopterological Notices, VI. 



Wyoming ( Green River ) ; Nevada ( Elko ). Mr. Wickliam. 



The posterior trochanters are finely spiculate posteriorly in the 

 male, and this very distinct species is, for this reason alone, as- 

 sociated with bigutiulus ; that it really has but little affinity, is 

 however shown by the male sexual characters, which are wholly 

 different. 



The fifth ventral is broadly rounded, but slightly longer than 

 the fourth, and unmodified, the genital segment corneous, feebly 

 and rather broadly arcuato-truncate at apex, with its surface 

 transversely impressed posteriorly. Only the apical part of the 

 copulator}^ sheath is visible, but this is modified so as to no longer 

 serve as a protective sheath, but simply as an anchor ; it consists 

 of a slender parallel-sided shaft, having at the apex a perfect and 

 strongly developed double barbed cordiform enlargement, the 

 lateral lobes of which are obliquely prominent posteriorly ; viewed 

 in profile the bai'bed point is arcuate downward, with its ex- 

 treme tip acute. 



16. A. protecting n. sp. — Elongate, convex, polished, variable in color 

 from pale brownish-testaceous, with or without the head black — ^generally 

 male, — to black tliroughout the body and legs, with the antennae paler toward 

 base — generally female; elytra each with a small pale spot behind the middle, 

 which is frequently obsolete; pubescence moderate in length, coarse and 

 abundant. Head and antennae nearly as in higuHulus. Prothorax large, fully 

 as wide as the head, scarcely longer than wide, rather feebly convex on the 

 disk, widest and broadly- rounded at the sides two-fifths from the apex, the 

 sides gradually convergent and continuously arcuate to the basal margin, 

 which is slightly dilated laterally; disk very deeply but not coarsely, densely 

 punctured. Elytra long, nearly twice as long as wide in the male, but shorter 

 in the female, barely twice as wide as the prothorax, the sides parallel and 

 distinctly arcuate, the convergent portion from apical two-fifths to near the tip 

 perfectly straight; apex moderately widely subtruncate; post-scutellar impres- 

 sion moderate, theomoplates subobsolete; punctures coarse and sparse, scarcely 

 less distinct toward apex. Abdomen finely, very densely punctate and dull, 

 the legs somewhat stout. Length 3.5-3.8 mm. ; width 1.1-1.2 mm. 



California (Lake Co.). 



This species is closely allied to biguttulus, but has the elytra 

 longer, more obliquel}' and rectilinearly narrowed toward apex, 

 the pronotal punctures rather coarser and less dense, those of the 

 elytra somewhat stronger and relatively more obvious toward 

 tip, the abdomen duller and more densely punctate, the prothorax 

 of slightly different shape, and differs also in several other details . 



I 



