334 MEMOIRS ON THE COLEOPTERA 



just visibly subprpminent, distinctly narrower than the apex, which is 

 nearly as in intectus, the surface and foveae also similar, except that the 

 ruguliform lines are more visible and the transverse impressions obsolete; 

 elytra nearly similar, fully three-fourths longer than wide, rather over a 

 fifth wider than the prothorax, evenly rounded at tip, the broadly arcu- 

 ate sides barely at all more rounding basally, far less so than in intectus; 

 striae similar in fineness and impunctate but less impressed and more 

 abruptly incised, the scutellar short, scarcely oblique and wholly discal, 

 the ocellate puncture larger. Length (cf) 14.3 mm.; width 4.9 mm. 

 Wyoming (Yellowstone Park), AVirt Robinson. 



Resembles intectus but has the prothorax less arcuate at the 

 sides, the second antennal joint shorter and the strial intervals flat 

 and not sensibly convex; it also differs in the ocellate subscutellar 

 puncture, which is small and virtually on the second stria in intec- 

 tus, but larger and almost midway between the first and second 

 striae in vivax. 



Hypherpes placerensis n. sp. Form somewhat as in parens but larger, 

 less narrow, with larger head and basally more sinuate sides of the pro- 

 thorax, black, the under surface and legs piceous, very moderately con- 

 vex, the elytra slightly alutaceous; head nearly three-fourths as wide as 

 the prothorax, the eyes rather large and prominent, the sulci arcuately 

 converging; antennae somewhat thick, especially toward base, piceous- 

 black, gradually fusco-ferruginous distally; prothorax large, a fifth wider 

 than long, widest near apical third, the sides broadly rounded, rather 

 coarsely reflexed, becoming broadly and very distinctly sinuate basally; 

 base feebly sinuate medially, margined broadly toward the sides, the 

 angles slightly more than right but sharp, though not prominent, dis- 

 tinctly narrower than the apex, which is nearly as in intectus; surface 

 with feeble ruguliform lines, the impressions nearly obsolete; inner fovea 

 long, broadly impressed but sharp at bottom, not attaining the base, the 

 outer shorter, feeble though distinct and sometimes delimiting a feeble 

 carina; elytra fully three-fourths longer than wide, a third wider than the 

 prothorax, moderately rounded behind, the sides feebly arcuate, more so 

 basally, rather widely reflexed, the gutter deep; humeral denticles small 

 and feeble; striae rather fine, impunctate, feebly impressed, sharply de- 

 fined, the scutellar short, the puncture large and remote from the second 

 stria; intervals not quite flat. Length (cf 9 ) 15.0-15.8 mm.; width 

 5.5-5.7 mm. California (Placer Co.). Taken by Koebele in August. 



This species may be compared with parens, from the same re- 

 gions, but differs as stated above; in parens the subscutellar punc- 

 ture is smaller and adjacent to the second stria. One of the two 

 specimens, the male, is pale red-brown throughout and seems to 

 have the elytra flatter. 



Hypherpes alamedae n. sp. Moderately elongate, more convex than 

 any of the three preceding species, black, the legs black; elytra (9) 



