24 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



low tubercules merging into base of lobe; vague impression in vicinity 

 of right anal seta. 



Aedeagus (fig. 10). — Right paramere not elbowed, narrowed in 

 about middle. Median lobe twisted about 45°; distal portion and tip 

 narrow, curved to left; right side of basal portion forming a sharp 

 carina that extends partly across ventral surface toward large un- 

 sclerotized area. 



Length of body. — 7.0 mm. 



Allotype female. — Same as above description of holotype except 

 for usual female differences. 



Variation. — Some of the other specimens examined differ from 

 the above description in having the elytral intervals flat. The right 

 paramere of the aedeagus is broad and then abruptly narrowed in 

 the distal third in southern specimens; it is narrowed more gradually 

 closer to the base in more northern specimens. Length of body ranges 

 from 6.5 to 8.0 mm. 



Type.— USNM 69603. 



Type-locality. — Three miles south of Rockport, Mendocino 

 County, Calif. 



Specimens examined. — 29. 



Distribution (fig. 37). — Holotype, male, and allotype, female, 

 3 miles south of Rockport, T. 22 N, R. 18 W, Mount Diablo meridian, 

 elev. 800 ft., Mendocino County, Calif., Mar. 22, 1964, H. A. Hacker. 

 Also the following paratypes: 1 male, Rockport, elev. 100 ft.; 2 males, 

 1 mile north of Rockport, elev. 100 ft.; 1 male, 1 female, 4 miles 

 north of Rockport, elev. 400 ft.; 3 males, 4 females, 1 mile south of 

 Caspar, T. 17 N, R. 17 W, elev. 100 ft., Mendocino County. Other 

 specimens were collected from the mouth of the Navarro River north 

 to the Rockport area. Twelve specimens were found seven miles 

 southwest of Ferndale, Humboldt County, elevation 1400 feet, 

 about 60 miles from Rockport. 



Remarks. — The range of this species overlaps the ranges of juchsi 

 to the south and of mattolensis to the north. The Ferndale specimens 

 apparently do not differ from the Rockport area specimens. If they 

 are not a recent introduction, it is surprising that no specimens of 

 lobatus were found among the 50 specimens of Leptoferonia collected 

 near the coast between Ferndale and Rockport. The name refers to 

 the lobe on the male sixth abdominal sternum. 



11. Pterostichus (Leptoferonia) mattolenis, new species 



Figures 11, 37, 41 

 Holotype male. — Characteristics of juchsi group plus the following. 



