14 



appears, however, not to have been noticed by Say, nor was it amongst those 

 collected by Dr. Bigsby in Canada, or by Dr. MacCalloch and Capt. Hall in 

 Nova Scotia. [According to LeConte an erroneous determination Fl P. 

 luczotU, Dej., a species taken in Ontario and Quebec] 



41. Omaseus [Pterostichus] nigrita, Curtis. — [This is P. caudicalis, 

 Say (Ent. AVorks, ii. 480) ; it has been taken at Ottawa by Mr. Billings.] 



[3-3] 42. Omaseus [Pterostichus] picicornis, Kirhy. — [Previously 

 described as P. muius by Say (Ent. Works, ii. 470) ; taken in Canada and 

 the United States.] 



[34] 43. Stereocerus [Amara] similis, Kirhy. — Plate viii. iig. 1. — 

 Length of body 5i lines. A pair were taken in lat. 64°. 



Body of a piceous-black, glossy. Palpi piceous; antennse chestnut; 

 frontal impressions deep, rather curving j occiput punctured with scattered 

 punctures; prothorax nearly square with cirved sides; basilar impressions 

 wide, punctured, deeply bisulcate, with an elevated little ridge between them 

 and the margin : elytra bronzed, furrowed, furrows scarcely punctured : legs 

 pale chestnut. In the 9 the elytra are not bronzed, the legs are darker, and 

 the terminal joint of the palpi is longer. 



[35.] CuRTONOTUS [Amara] convbxiusculus, Stephens. — Length of 

 body 5i lines. Taken in lat. 65°. 



Body dark piceous, sometimes a little bronzed. Antennae and palpi 

 rufous; frontal impressions short, connected by a rather deep furrow; pro- 

 thorax constricted and punctured at the base, depressed on each side ; basilar 

 impressions bisulcate ; posterior angles acute, recurved ; elytra furrowed, fur- 

 rows punctured : sides of the ventral segments of the abdomen somewhat 

 punctured and wrinkled, those of the mid-breast grossly punctured : legs 

 chestnut. 



[LeConte considers this an erroneous determination, and places it, with a 

 mark of interrogation, as a synonym of his A. laticollis^ stating (Pro. Acad. 

 Nat. Sci.. Phil., June, 1855, p. 347,) respecting the latter that it is "found 

 in Nebraska Territory near the Rocky Mountains. Very similar to the Euro- 

 pean A. convexiusculaf but in comparison with that species the thorax is 

 more rounded on the sides, more narrowed behind, and more finely mar- 

 gined."] 



45. CuRTONOTUS [Amara] rufimanus, Kirhy. — Length of body 5 

 lines. Several taken in lat. 54°. 



This is extremely similar to the species last described, from which it prin- 

 cipally differs in having the legs of the colour of dark pitch, with the excep- 

 tion of the hands or anterior tarsi, which are rufous : the sides of the ventral 

 segments of the abdomen also appear less conspicuously punctured. 



