2(> NORTHERN ZOOLOGY. 



(28) 4. Agonum melanarium. (De Jean.) Black Agonum. 



Agonum melanarium. De J. Coleopt. iii, 152, 1ft. 

 Carabus pullatus. Melsh. Cat. 89. 



Length of the body 4J lines. 



Taken in Lat. 54°. 



DESCRIPTION. 



Body black, glossy. Mandibles at the tip, mouth and scape of the antenna?, piceous : prothorax 

 nearly as long as wide ; disk transversely wrinkled ; lateral margin at the base much dilated, rather 

 incrassated, and subangular ; posterior impressions large and distinctly punctured : elytra wider than 

 the prothorax, subemarginate at the base ; distinctly furrowed with very minute and inconspicuous 

 punctures in the furrows ; three punctiform impressions in the third furrow from the suture : legs 

 piceous. 



This species is the American representative of A. versutum, which it much resembles. It is 

 however larger, the transverse wrinkles of the disk of the prothorax, and the punctures in its posterior 

 impressions, are more distinct ; the furrows of the elytra are rather deeper with more convex inter- 

 stices, and the three punctiform impressions are all adjacent to the third furrow, whereas in A. ver- 

 sutum the anterior one alone is adjacent to that furrow, the two other adjoining the second. 



(29) 5. * Agonum seminitidum. Half-glossy Agonum. 



A. (seminitidum J nitidum, subtus nigrum, capite prothoraccque viridi-aneis ; clytris obscurinribus, nigro-aneis, quinque-foveolalis. 

 Half-glossy Agonum, glossy, black underneath, head and prothorax greenish-bronzed ; elytra more obscure, black-bronzed, 

 with five punctiform impressions. 



Length of the body 4-i lines. 



Taken in Lat. 54°. 



DESCRIPTION. 



Body smooth, glossy, black underneath. Head greenish-bronzed, very glossy, with frontal im- 

 pressions lunular ; antenna? longer than the prothorax : prothorax greenish-bronzed with a copper 

 tint, very glossy, channelled, disk transversely and minutely wrinkled ; basilar impressions longitu- 

 dinal, lateral margin, particularly at the base, reflexed : elytra black-bronzed, less glossy than the 

 head and prothorax, lightly furrowed; furrows punctured ; in the insterstice between the second 

 and third furrows are five punctiform impressions, two nearer the base and three nearer the apex of 

 the elytrum, so that the interval between the second and third is greater than that between the 

 others. 



Variety B. Second and third punctiform impressions not more distant than the others. In 

 this specimen, on the left hand elytrum, there are only four impressions, and on 

 the other five, but in neither are the second and third situated as in A. It may 

 be a distinct species, but I can discover no other difference. 



