316 PROCEEDINGS OF THE ACADEMY OF 



Amara (Leirus) lacustris? Specimens almost precisely similar to" the 

 specimen from Lake Superior, were found at Fort Simpson and also on the 

 Saskatchewan. The thorax is, however, somewhat less narrowed behind, and 

 the apex is sparsely punctured. 



Amara (Leirus) obtusaZec, Proc. Acad. Nat. Sci. 7, 348. Amara Esch- 

 scholtzii Mann. Bull. Mosc. 1852, 297. The specimens sent by Mr. Kennicott are 

 larger than the one sent me by Mr. Motsclmlsky from Russian America, but do 

 not otherwise differ. It is perhaps Curtonotus lat i or Kirby, Fauna Bor. Am. 

 36, but the descriptions of the species of this genus by Kirby are so indefinite 

 that reference must be had to the original specimens to determine the 

 synonymy. 



Amara (Celia) interstitialis Dej. 



Bembidium n i t e n s Lee. ; Peryphus picipes % Mann. Precisely similar to the 

 specimens from Lake Superior, and Kadjak. 



Bembidium nigripes; Notaphus nigripes Kirby, Fauna Bor. Am. 57. This 

 species is similar in size and form toB. variegatum and B. patruele, 

 but differs by the feet and antennae being black, with the first joint of the latter 

 testaceous beneath. The striae of the elytra are also less deep, and more 

 finely punctured. The size is smaller than required by the description of 

 Kirby, but the color of the feet is so characteristic, that I can scarcely avoid 

 considering it as his species. Notaphus quadraticollis Mann. Bull. 

 Mosc. 1853, 148, is probably the same. The Russian American one described as 

 B. n i g r i p e s by Mannerheim, is totally different, being much larger, with the 

 pale bands of the elytra very badly defined, and the epipleurae pale, resembling 

 these characters B. indistinctum Dej., from California; it differs, how- 

 ever, from that species by the thorax being more strongly margined, with the 

 posterior angles more rectangular and prominent, and the basal carinae very 

 distinct ; the dorsal line and impressions are likewise deeper. In all these 

 respects it agrees with B. approximatum Lee. , but differs by the punc- 

 tures of the elytral striae being larger and less closely placed. The femora are 

 dark: in B. appr ox i m at um the legs are usually pale, though some- 

 times dark, in B. indistinctum they are always pale. The species will 

 hereafter be known asB. incrematum; it differs from all the allied species 

 by the 7th elytral stria being obliterated and represented only by punctures. 



Bembidium nitidum Lee. ; Eudromus nilidus Kirby; a specimen pre- 

 cisely similar to one found by me in the Platte River valley. Bembidium 

 breve Mann., Bull. Mosc. 1852, 301, is closely allied to this species, and 

 on comparison may be found to be identical. 



Silpha lapponica Linn. 



Catops brunnipennis Mann. Bull. Mosc. 1853, 176. 



Tachyporus j o c o s u s Say. 



Dicerca tenebrosa Lee, Buprestis (Stenuris) tenebrosa Kirby. 



Ancylochira maculiventris Lee. , Buprestis mac. Say. 



Upis ceramboides Fabr. ; Upis reticulata Say. 



Rhagium lineatum Oliv. One specimen precisely similar to those from 

 Oregon and the Atlantic States. I am therefore strongly inclined to doubt 

 the specific value of the Russian American, R. investigator Mann. (Bull. 

 Mosc. 1852, 367) ; the characters given by him as distinguishing it are partly 

 individual and partly sexual. 



Ckrysomela A don idi s Pallas; Phcedon Adonidis Kirby, Fauna Bor. Am. 

 214, < rT i 



