ClCINDELID^ AND CARABID/E 51 



impressed, impunctate, the intervals distinctly convex, without large 

 interrupting foveae, the third with four small setigerous punctures, which 

 are at the outer side and adjacent to but not on the stria; legs slender, 

 moderately long. Length 10.5-10.8 mm.; width 3.9-4.2 mm. Alaska, 

 Ulke. Four examples. 



For many years this species figured in my collection under the 

 name gregaria, but on comparing it with the description given by 

 Horn (Tr. Am. Ent. Soc., 1870, p. 100) I am unable to convince 

 myself that it is in any way very closely allied. The size is rather 

 smaller than the 11.5 mm. given as the length of gregaria and there 

 is no trace whatever of any metallic lustre, the elytra of the latter 

 being said to have a distinctly bluish-green tinge. It will be noted 

 that although so similar in general habitus to trifaria, purpurata, 

 catenata and mobilis, this species and gregaria differ radically in 

 having minute setigerous punctures adjacent to the third stria, 

 and not large foveae interrupting the intervals as in those species. 

 Bifaria Mann., I have not seen and so can venture no opinion as to 

 its relationships. 



Group metallica Fisch. 



In this group I would place besides metallica, mannerheimi and 

 sahlbergi Fisch., gebleri of Dejean, of which there is an example at 

 hand taken in British Columbia by Prof. Kemp, eschscholtzi Men., 

 which I took in great abundance in California, and probably rathvoni 

 Lee., which is unknown to me, the three species described below. 

 With the exception of sahlbergi and related forms, such as moesta Lee. 

 and parvula, which have a very wide range in North America, this 

 group is confined to the Pacific coast regions. The sides of the 

 prothorax vary from strongly sinuate posteriorly to but little more 

 sinuate than in the obliqua group, as for example in oregona, which 

 is only placed here and not in the obliqua group because of its 

 broad form and habitat, harmonizing better with mannerheimi and 

 metallica than with obliqua in these as well as some other respects. 



Nebria tenuipes n. sp. Moderately stout and convex, cuneiform, 

 shining, rufo-piceous, the elytra and under surface nearly black, the 

 entire antennae and legs pale testaceous; head smooth, much narrower 

 than the prothorax, the anterior impressions moderate, on a line with the 

 anterior margin of the eyes and separated by a third of the interocular 

 distance; antennae slender, filiform as usual and two-thirds as long as 

 the body; prothorax slightly less than one-half wider than long, the sides 



