32 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



lateral margin sometimes convex; occasional vague shallow punctures 

 present around longitudinal impressions. Elytron -with scutellar stria 

 complete; scutellar stria absent; only five punctures in posterior 

 series on eighth stria; striae faintly punctate; length of body 6.0 to 

 8.0 mm. None of the variable characteristics seem to be geographical 

 variations. The aedeagus appears to be constant throughout the 

 range of this species. 



Type.— USNM 69606. 



Type-locality. — Two miles southwest of Ganns, Calaveras 

 County, Calif. 



Specimens examined. — 157. 



Distribution (fig. 39). — Holotype, male, and allotype, female, 2 

 miles southwest of Ganns, T. 6 N, K. 16 E, sec. 11, Mount Diablo 

 meridian, elev. 6500 ft., Calaveras County, Calif., Sept. 7, 1964, 

 H. A. Hacker. Also the following paratypes: 10 males, 5 females, 

 same data as holotype; 4 males, 4 females, Ganns, elev. 6600 ft.; 

 11 males, 7 females, 1 mile west of Big Meadow Forest Service Camp, 

 T. 7 N, R. 17 E, sec. 32, elev. 6700 ft. Other specimens were collected 

 from Robb's Valley, T. 13 N, R. 14 E, El Dorado County, south 

 to 1 mile southwest of Strawberry, T. 4 N, R. 18 E, Tuolumne County, 

 and from elevations of 2800 to 6900 ft. 



Remarks. — I take pleasure in naming this species for Dr. Melville 

 H. Hatch. 



16. Pterostichus (Leptoferonia) stapedius, new species 



Figures 16, 39 



This species comprises two populations described herein as two 

 subspecies: P. stapedius stapedius, the nominate new subspecies, and 

 P. stapedius yosemitensis, new subspecies. This species differs from 

 P. hatchi, new species, primarily in the structure of the aedeagus. 



Holotype male. — Same as description of hatchi group plus the 

 following. 



Head. — Frontal impressions diverging for entire length, not parallel 

 in anterior half; depression on front elongate but not widened 

 posteriorly. 



Pronotum. — Sides subparallel before hind angles; outer longitudi- 

 nal impression absent on one side, vague on other; area between 

 inner impression and lateral gutter mostly tumid; longitudinal 

 wrinkles faint, no discal punctures; disc more convex than in hatchi. 



Elytron. — Scutellar stria complete; striae subpunctate; surface 

 more convex than in hatchi, especially noticeable toward base. 



Ventral surface. — Coarse punctures on sides of prosternum; 

 punctures on thorax coarser and denser than in hatchi. 



