American Caraboidea 151 



fovese rather large, oblique and deep; median stria well impressed, 

 rather coarse; elytra two-thirds longer than wide, only a fourth wider 

 than the prothorax, oblong, only just. visibly wider behind, the sides 

 rapidly rounded at base; apical obliquity just visibly sinuate; striae 

 rather fine, feebly impressed and with small and well separated punctures, 

 the third with four small fovese within large irregular indentations; 

 intervals nearly flat; anterior male tarsi with the first three joints large, 

 dilated and densely albido-spongy-pubescent beneath. Length 7.7-8.4 

 mm.; width 3.1-3.3 mm. Alaska (St. Paul Island). Seven specimens. 



Allied to sahlbergi but smaller and with still shorter and more 

 transverse prothorax. I cannot be sure, however, that the single 

 specimen at hand representing sahlbergi, also from St. Paul Island, 

 is really that species. 



Nebria labradorica n. sp. — Much larger than the preceding and rather 

 more convex but of nearly similar habitus, piceous in color, moderately 

 convex, shining; legs colored nearly as in the preceding; male more 

 abbreviated than the female; head nearly as in the preceding, the last 

 palpal joint only one-half longer than the third; prothorax three-fourths 

 (cf) to three-fifths (9) wider than long, widest just visibly before the 

 middle, the sides evenly arcuate, oblique and gradually sinuate behind, 

 becoming parallel at the angles, the sinus much less abruptly formed 

 than in the preceding, the angles right, sharp; margins nearly similar 

 but more widely and constantly rufescent; transverse impressions deep, 

 strongly punctured, the median stria deeply impressed, almost entire; 

 foveae deep, slightly oblique; elytra broader, oblong, parallel, three- 

 fourths longer than wide, a fifth (cf) to more than a fourth (9 ) wider 

 than the prothorax, the sides gradually rounded basally, the apical 

 obliquit}' scarcely more than straight; striae moderate, feebly punctate, 

 the third with four internally adhering punctures, not within large 

 impressions; intervals broadly convex, flatter externally; three basal 

 joints of the anterior male tarsi well dilated, the second and third quad- 

 rate. Length 8.7-9.8 mm.; width 3.2-3.5 mm. Labrador (West St. 

 Modest), — Sherman. Nine specimens. 



Distinguishable readily from the preceding by its larger size, 

 broader form, less abbreviated prothorax, more parallel elytra and 

 absence of large indentations about the dorsal foveae. Its exact 

 relationship with sahlbergi cannot be stated definitely at present. 



Nebria prominens n. sp. — Rather slender, more convex, shining and 

 deep black above and beneath; legs long and slender, obscure rufous, 

 the femora black; head triangular, three-fourths as wide as the pro- 

 thorax, with prominent eyes; maxillary palpi rufous, the fourth joint 

 one-half longer than the third; front without pale spots; antennae 

 piceous, more than half as long as the body; prothorax one-half wider 

 than long, widest just before the middle, the sides evenly rounded, 

 gradually oblique, becoming subparallel behind the middle, the angles 



