36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



19. Pterostichus (Leptoferonia) beyeri Van Dyke 



Figure 19 



Pterostichus beyeri Van Dyke, 1925, p. 71. — Csiki, 1930, p. 711. — Leng and 

 Mutchler, 1933, p. 12.— Hatch, 1936, p. 705; 1953, p. 112. 



Pterostichus (Leptoferonia) idahoensis Hatch, 1936, p. 704, 706; 1953, p. 112 

 [fide synonymy of beyeri]. 



Color of body. — Dark rufous. 



Head. — Large in proportion to body; mandibles large, tips nar- 

 rower than in caligans; frontal impressions obsolete; genae bulbous; 

 eyes small, flattened, larger than in caligans; microreticulate. 



Pronotum. — Narrow; sides feebly arcuate in anterior third, thence 

 oblique except slightly sinuate before small rectangular hind angles; 

 posterior pair of setiferous punctures at hind angles; when preseDt, 

 transverse basal impressions not extending between shallow inner 

 longitudinal impressions; outer pair of impressions absent or very 

 faint; midline shallow; microstrigulose. 



Elytron. — Humerus subrectangular; humeral dentation small, 

 acute; scutellar stria present; scutellar puncture absent; setiferous 

 punctures on eighth stria consisting of six in anterior series, one 

 intermediate; five to seven in posterior series; two setae at posterior 

 end of seventh stria; microreticulate. 



Ventral surface. — A few coarse punctures on mesepisternum. 



Legs. — Hind trochanter blunt, about half the length of hind femur; 

 hind femur robust; setae absent on ventrolateral margins of last 

 article of tarsus. 



Sixth abdominal sternum of male (fig. 19). — Unmodified. 



Aedeagus (fig. 19). — -Right paramere short. Median lobe with 

 ventral surface nearly flat; ventral surface and right side not meeting 

 sharply; no lightly sclerotized strip; ridge on basal portion where 

 parameres meet when folded; tip fairly long and narrow. Internal 

 sac with prominent sclerotized tooth. 



Length of body. — 10.0 to 12.5 mm. 



Types. — Pterostichus beyeri, male, CAS 1823!; P. idahoensis, not 

 seen. 



Type-localities. — Pterostichus beyeri, Bitter Root Mountains, 

 Montana. P. idahoensis, Pierce, Clearwater County, Idaho. 



Specimens examined. — 3. 



Distribution. — Known form northern Idaho and extreme western 

 Montana; 



20. Pterostichus (Leptoferonia) f alii Van Dyke 



Figure 20 



Pterostichus jalli Van Dyke, 1925, p. 73. — Csiki, 1930, p. 712. — Leng and Mutchler, 

 1933, p. 12.— Hatch, 1936, p. 705. 



