1.14 THE CANADIAN EKTOMOtOOlST. 



INSECTS OF THE NORTHERN PARTS OF BRITISH AMERICA. 



COMPILED BY THE EDITOR. 



From Kirby 1 s Fauna B or call- Americana : Tnsecta. 

 (Continued from page 94.) 



[90. J 125. Aleochara Pallitarsis, Kirby. — Length of body 2 lines. 

 Locality unknown. 



The species of this genus of minute Brachclytra are so extremely 

 numerous, nearly 200 having been discovered in Britain alone, and so 

 difficult to discriminate, that it is not with great confidence that I give 

 this as a nondescript. I have many undescribed species in my cabinet 

 that come very near it, but I cannot find one that altogether agrees 

 with it. 



Body black, gloss deadened by short inconspicuous hairs. Head 

 rather spherical, narrower than the prothorax, very minutely punctured ; 

 antennae shorter than the prothorax, rather robust, intermediate joints 

 turbinate, last joint ovate, acute : prothorax sub-orbicular with the sides 

 deflexed, very minutely and thickly punctured ; dorsal channel nearly 

 obsolete ; a large punctiform impression just above the scutellum : elytra 

 longer and rather wider than the thorax, piceous-black, extreme tips 

 rufous, very minutely and thickly punctured : legs piceous-black with 

 rufous tarsi. 



126. Tachyporus Acuductus, Kirby. — Length of bodv 1 line. Taken 

 near Cumberland-house, lat. 54 . 



[91.] Body dark-piceous, naked, smooth, glossy. Antennae and mouth 

 testaceous : prothorax very smooth, wider than the elytra, posterior angles 

 testaceous : elytra longer than the head and prothorax together, piceous 

 with the external apical angle testaceous ; if viewed under a good mag- 

 nifyer, they appear covered, especially next the suture, with minute 

 branching scratches, as if made by a pin or needle, intermixed with verv 

 small punctures ; abdomen very short and conical, scarcely margined, 

 piceous with the segments paler at their tip. 



127. Tachyporus affixts Kirby. — Length of body, 1 line. Taken 

 with the preceding species. This species is extremely similar to T. 

 acuductus, but the posterior angles of the prothorax are not testaceous : 

 the elytra are palish-chestnut and thickly covered with very minute 

 punctures, without any scratches. 



