THE CANADIAN ENTOMOLOGIST. 16£ 



first joints of the latter paler than the others : prothorax rufous, rather 

 longer than wide, between square and obcordate ; basilar impressions single, 

 very slight, punctured, and black : elytra rufous, with a broad black stripe 

 adjoining the suture and parallel with it ; furrows rather deep, impunctured : 

 legs pale yellow. 



N.B. — In the majority of specimens the black stripe of the elytra is very 

 faint, and in some evanescent, and the impressions as well as the rest of the 

 prothorax rufous. [Previously described as B. rupesfris, Say. — Ent. Works 

 ii. 505. Very common in Canada.] 



70. Trechus immunis, Kirby. — Length of body If lines. Two speci- 

 mens taken with the preceding species. 



Similar to T. flauipes but smaller, the nose is piceous, the thorax is more 

 dusky; dorsal channel indistinct; basilar impressions deeper and impunc- 

 tured : elytra dark piceous with merely the bead of the lateral margin rufous ; 

 the furrows also are more lightly drawn : legs darker. [Le Gonts, I.e. cit., 

 states that he has not identified this species, but that it is perhaps Stenolo- 

 phus cams, Lee, though the description is scarcely sufficient to warrant the 

 placing of the latter in synonymy.] 



71. Trechus [Bradycellus] similis, Kirby. — Length of body 3£ lines. 

 Two specimens taken in Lat. 54°. 



Body black, glossy. Mouth reddish yellow ; palpi yellow ; upper-lip and 

 mandibles rufuus, the latter black at the tip ; antennas dusky-rufous, three 

 first joints more yellow: prothorax between obcordate and square, with the 

 whole of the base distinctly and grossly punctured; basilar impressions 

 shallow; limb of the prothorax is reddish-yellow, the disk is occupied by a 

 large square black spot : the suture, lateral margin, and apex widely, and 

 the inner base of the elytra, are reddish-yellow; [49] adjoiniug the suture 

 is a broad black stripe not reaching the apex; the furrows are rather deep 

 and impunctured; and in the usual situation, a little beyond the middle, a 

 punctiform impression is adjacent to the second furrow : the sides of the 

 fore-breast, the anus and the legs, are reddish-yellow. 



Var. B. Thorax without a black spot in the disk, body underneath piceous. 



[Previously described as Feronia atrimedius by Say. — Ent. Works ii. 

 466.] 



[50] 72. Isopleurus nitidus, Kirby. — 'Plate i. fig. 6. Length of body 

 3^ lines. A single specimen taken in the Rocky Mountains. 



Body very glossy, underneath rufo-piceous, above bronzed with a light tint 

 of piceous. Upper-lip rufous ; palpi, antenna which are slender, side-cover 

 of the elytra and legs reddish-yellow : prothorax rather wider than long, 

 punctured posteriorly, basilar impressions doubled : furrows of the elytra 



