34 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



17. Pterostichns (Leptoferonia) stapedius yosemitensis, new subspecies 



Figures 17, 39 



Holotype male. — Same as description of stapedius plus the 

 following. 



Head. — Frontal depression very faint. 



Pronotum. — Outer longitudinal impressions weak; longitudinal 

 wrinkles numerous. 



Aedeagus (fig. 17). — Compared to stapedius stapedius right para- 

 mere thicker and shorter. Median lobe with basal portion more 

 slender; tip longer, directed forward rather than parallel to axis of 

 basal portion; extreme tip widened, directed to right. Internal sac 

 not examined. 



Allotype female. — Same as holotype except pronotum with 

 longitudinal wrinkles less evident; a few faint punctures around 

 longitudinal impressions; and usual female differences. 



Type.— USNM 69608. 



Type-locality. — One-half mile north of Crane Flat Ranger Sta- 

 tion, Tuolumne County, Calif. 



Specimens examined. — 5. 



Distribution (fig. 39). — Holotype, male, % mile north of Crane 

 Flat Ranger Station, T. 2 S, R. 20 E, sec. 7, Mount Diablo meridian, 

 elev. 6100 ft., Tuolumne County, Calif., Sept. 20, 1964, H. A. Hacker; 

 allotype, female, Carlon Forest Service Camp, T. 1 S, R. 19 E, sec. 35, 

 elev. 4300 ft., Sept. 19, 1964. Also the following paratypes: 1 male, 

 1 female, 2 miles northeast of Crane Flat Ranger Station, T. 2 S, 

 R. 20 E, sec. 9, elev. 6800 ft. ; 1 male, 2 miles south of Carlon Forest 

 Service Camp, T. 2 S, R. 19 E, sec. 2, elev. 4500 ft. There is also 

 part of a dead female from the type-locality. Two of the males are 

 teneral, and the aedeagus of one collapsed on drying. 



Remarks. — The only differences between the two subspecies of 

 stapedius seem to be in the aedeagus. Since this structure is stable 

 within other subspecific populations in Leptoferonia, it seems advisable 

 to depend on it in this case also. The nearest specimens of stapedius 

 stapedius are from Illilouette Canyon, a distance of about 15 miles 

 from Crane Flat. The paratypes have been deposited in the Cali- 

 fornia Academy of Sciences. 



18. Ptcrostichus (Leptoferonia) caligans Horn 



Figures 18, 29, 38 



Ptcrostichus caligans Horn, 1891, p. 33. — Casey, 1913, p. 126. — Van Dyke, 



1919, p. 6; 1925, p. 75.— Csiki, 1930, p. 582.— Hatch, 1936, p. 705. 

 Leptoferonia caligans (Horn). — Casey, 1918, p. 337. — Leng, 1920, p. 56. 



