NEBRIA and PELOPHLLA appear to be sufficiently distinct 

 to be retained apart. 



fteljria. — Anterior tarsus of S moderately or feebly dilated; antennas slender, 

 joints all cylindrical, equalling in length two-thirds or more the length of the 

 body ; scutellar stria of elytra always distinct. 



Pelopllila. — Anterior tarsus of $ broadly dilated; antennas stout, shorter than 

 half the length of the body, joints 3-4 thicker at tip, joints 3-11 distinctly flat- 

 tened ; scutellar stria obliterated ; body robust, Blefhisa form. 



PELOPHILA, Dej. 



Hind angles of the thorax rectangular; black, somewhat aeneous. 

 They also live in the high North under stones at the edge of the 

 waters. 



Horn classifies them (Trans. Am. Ent. Soc., III, p. 104) as follows: 



Thorax one-half broader than long. 



Elytral stria? deep and coarsely punctured ; third stria with 6-7 punc- 

 tures; legs piceous 1. EscllSCholtzii. 



Elj*tral strias replaced by lines of moderate coarse punctures, third stria 



with 4-5 punctures, interstices convex; legs black 2. rudis. 



Thorax twice as broad as long. Tibiae brown, femora rufous ; third stria with 



four punctures ; interstices flat 3. Ulkei. 



1. P. EschschoUzii, Mann. Humm. Essais Ent. Ill, 40 ; Bull. Mosc, 1843, II, p. 190. 



Length 12 mm. Sitka, Methy. 



2. P. rudis, Lee. (Nebr.) New Spec. 1863, I, p. 3. Methy. 



3. P. Ulkei, Horn. Trans. Am. Ent. Soc, 1870, IH, 105. Hudson Bay Terr. 



The following is unknown : 

 P. californica, Motsch. Ins. Sib., p. 63. 



EEISTES, Frbh. 



A small insect of brown color, having the maxillre armed be- 

 neath with spines. 



E. ferruginosus, Mann. Bull. Mosc, 1843, II, 187, ferrugineus. Dej. 

 Spec, V, 569. Length 36 mm. Alaska to Oregon. 



Bull. Brookl. Ent. Soc, Dec. 1878. 



