328 MEMOIRS ON THE COLEOPTERA 



tures of the elytral striae, indistinct scutellar stria and almost obso- 

 lete external carina toward the pronotal base. Length (9) 13.5 

 mm. New York. [Stereocerus grandiceps Lee.] . . . . grandiceps Lee. 



The three differential characters relating to the thoracic cari- 

 nation, the scutellar stria and the distinct strial punctures of the 

 elytra, will, if even approximately true, serve to separate grandi- 

 ceps at once from any of the three preceding species. In rostrata 

 strial punctures are only occasionally feebly glimpsible under cer- 

 tain angles of reflection, and the same can be said even more truly 

 of sulcatula and piceata. 



Hypherpes Chd. 

 Pterostichus Bon. (pars) Auct. Amer. 



This large genus is almost wholly confined to the extreme western 

 parts of our territories, the small adoxus group being its only repre- 

 sentation in the Atlantic regions. In my former review of the 

 species, under the name Pterostichus, nearly all then known to me 

 were described, and on carefully looking again over the series I can 

 find but little which, under present lights, would appear to be in 

 the nature of obvious error.* A considerable number of species 

 received since that revision, or erroneously identified there, may be 

 defined as follows : 



Hypherpes innatus n. sp. Body only moderately elongate and dis- 

 tinctly convex, subparallel, shining, dark castaneous in color, the elytra 

 alutaceous in the female; head very moderate, not three-fifths as wide as 

 the prothorax, the eyes rather prominent, well developed, the sides be- 

 hind them not swollen; anterior sulci arcuate outward posteriorly; an- 

 tennae paler brown, slightly tapering, barely extending to the thoracic 

 base; prothorax notably large, only slightly wider than long, the base 

 margined except narrowly at the middle, rather broader than the evenly 

 sinuate apex and five-sixths the maximum width, which is before the 

 middle; sides strongly but not broadly reflexed, broadly arcuate, gradu- 

 ally subsinuously oblique posteriorly, the basal angles sharp but rather 

 more than right, the puncture in the angle bounded internally by a finely 



* I find that the type of pugetanus Csy., is merely the female of crenicollis Lee., 

 which was represented in my collection only by a male. The male is generally larger 

 than the female in the larger species of this genus and sometimes, as in herculaneus 

 has a shorter prothorax; the sides of the prothorax in the type of pugetanus are not 

 obviously crenulate, but this feature is variable in herculaneus and all others possess- 

 ing the character. The identity of ivrangelli Csy., with castaneus Dej., is sufficiently 

 evident, as shown by the male sexual characters at the abdominal apex, which I over- 

 looked in describing castaneus. 



