12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



Sixth abdominal sternum of male (figs. 2, 3). — Face of sternum 

 with one large impression to right of center. 



2. Ptorostichus {Leptoferonia) pumilus pumilus Casey 



Figures 2, 33 



Plerosiichus longicollis LeConte, 1852, p. 239 [not Duftschmid, 1812, p. 180; 



not Motschulsky, 1859, p. 147; not Casey, 1924, p. 75]; 1857, p. 8; 



1863b, p. 10; 1869, p. 370; 1873, p. 313.— Schaupp, 1882, p. 41.— Casey, 



1913, p. 129. — Van Dyke, 1925, p. 75 [fide synonymy of pumilus]. — Leech, 



1935, p. 121.— Hatch, 1936, p. 703. 

 Leptoferonia longicollis (LeConte). — Casey, 1918, p. 337. — Leng, 1920, p. 56. 

 Pterostichus pumilis Casey, 1913, p. 127. — Csiki, 1930, p. 582. — Van Dyke, 



1925, p. 75.— Hatch, 1953, p. 112. 

 Pterostichus pumilus. — Casey, 1914, p. 356. — Lindroth, 1966, p. 471. 

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

 Micromaeseus longicollis. — Casey, 1924, p. 75 [not LeConte, 1852, p. 239]. — 



Leng and Mutchler, 1927, p. 10. — Hatch, 1953, p. 112 [fide synonymy of 



pumilus]. 

 Feroniens oregona Chaudoir, 1868, p. 335 [fide LeConte, 1873, p. 304]. 

 Pterostichus oregonus (Chaudoir). — Csiki, 1930, p. 712 [not LeConte, 1861, 



p. 339].— Lindroth, 1966, p. 471. 

 Pterostichus (Leptoferonia) oregonis. — Csiki, 1930, p. 582 [new name for longicollis 



LeConte].— Leng and Mutchler, 1933, p. 12.— Hatch, 1936, p. 703; 

 1953, p. 112. 



The characteristics below are found in pumilus pumilus sensu stricto 

 in addition to the characteristics listed above that are common to 

 all specimens of pumilus. 



Pronotum. — Sides sinuate in vicinity of posterior setiferous punc- 

 tures, then diverging; hind angles acute. 



Elytron. — Humeral dentation often acute. 



Aedeagus (fig. 2). — Right paramere with lobe beneath and parallel 

 to elongate distal portion not evenly rounded, notched in middle. 

 Median lobe with a weak swelling or small tubercule in about middle 

 of ventral surface; impression on right side at about middle; no lobe 

 on right side. 



Length of body. — 7.0 to 9.0 mm. 



Variation. — The above description of the reduced tooth on the 

 median lobe of the aedeagus applies to specimens from the Cascade 

 Mountains of Oregon and southern Washington. The holotype of 

 pumilus has only a weak swelling. Figure 2 shows the tooth typical 

 of the other Washington and British Columbia specimens examined, 

 viz., long, narrow, and trough shaped. Specimens from the northern 

 part of the Willamette Valley have a shorter and thicker tooth. 

 Specimens from the Oregon Coast Range have teeth ranging from 

 the northern Willamette Valley form to a weak swelling. Six males 

 in the Fender collection, all labelled "Tillamook," show the complete 

 range. 



