no. 3649 LEPTOFERONIA — HACKER 21 



Aedeagus. — Right paramere elongate. Median lobe with ventral 

 surface with unsclerotized area on left side and diagonal, lightly 

 sclerotized strip. Internal sac with large microtrichiate lobe below 

 gonopore; usually small, weakly sclerotized tooth in gonopore. 



Length of body. — 6.0 to 9.0 mm. 



Remarks. — Distribution data are not as complete for members 

 of the fuchsi group (see figs. 36, 37, 41) as for members of the inopinus 

 group in Oregon. The range of lobatus is known to overlap the ranges 

 of its two neighbors. There is geographical variation in the right 

 paramere of lobatus (see fig. 10), but no other character shows any 

 evidence of possible interbreeding. Since lobatus does overlap, appar- 

 ently without interbreeding, it should definitely have species rank. 

 Four of the other species presumably come into contact with each 

 other in three areas in Humboldt and Mendocino Counties. Unfor- 

 tunately, no specimens are known from these three areas, and so 

 there is no direct evidence that the species come into contact or 

 overlap without interbreeding. The gaps are small, however; only 

 five or 10 miles separate the known ranges of trinitensis, mattolensis, 

 and humilis in some places. If there are intermediate individuals, 

 one would have expected a few among the approximately 170 males 

 examined of trinitensis, humilis, mattolensis, and fuchsi. Instead, the 

 structure of the aedeagus seems to be constant within each popula- 

 tion and different among the six; hence, all six taxa have been given 

 species rank. The six species inhabit California north of San Francisco 

 Bay, within about 50 miles of the coast, and extreme southwestern 

 Oregon. Five of the species live essentially within the redwood belt. 

 The sixth, trinitensis, lives to the east of the redwoods. 



8. Pterostichus (Leptoferonia) fuchsi Schaeffer 



Figures 8, 36, 41 



Pterostichus fuchsi Schaeffer, 1910, p. 392.— Casey, 1913, p. 128. — Van Dyke, 



1925, p. 75.— Csiki, 1930, p. 582.— Hatch, 1936, p. 704. 

 Leptoferonia fuchsi (Schaeffer). — Casey, 1918, p. 337. — Leng, 1920, p. 56. 

 Leptoferonia fugax Casey, 1918, p. 337 [not Morawitz, 1862, p. 212]. — Leng, 



1920, p. 56. 

 Pterostichus fugax (Casey). — Van Dyke, 1925, p. 75 [fide synonymy of fuchsi]. 

 Pterostichus fugiens Csiki, 1930, p. 582 [new name for Leptoferonia fugax Casey]. — 



Leng and Mutchler, 1933, p. 12. 

 Pterostichus fugens [sic]. — Hatch, 1936, p. 704 [misspelling of fugiens Csiki]. 



Species description. — Characteristics of fuchsi group plus the 

 following. 



Head. — Frontal impressions nearly straight except noticeably re- 

 curved posteriorly, divergent, forming an angle of approximately 80°. 



Pronotum. — Sides arcuate, then oblique or slightly sinuate for 

 a short distance before hind angles; single pair of longitudinal impres- 



