178 long's second expedition. 



the extremity resembling the commencement of a branch from the 

 color of the margin ; feet pale rufous ; postpectus black, yellow- 

 ish each side behind and at the anterior angles; venter black, 

 with yellow bands, terminating each side in triangles of the same 

 color. 



Length one and one-tenth of an inch. 



This species is most closely allied to D. marginalis of Europe ; 

 the appearance of the superior surface of the body is altogether 

 the same, even to the form and appearance of the frontal spot, 

 nevertheless our insect is much smaller, and the arrangement of 

 colors beneath, on the postpectus and venter, is altogether dif- 

 ferent. 



[Afterwards described as D. carolinus Aube, Hydr. 108. — Lec] 



LACCOPHILUS Leach. 



L. PUNCTATUS. — Dusky testaceous; very regularly and pro- 

 foundly punctured. 



Inhabits North-west Territory. 



Body suboval, short, dull testaceous ; head with two dilated 

 slightly impressed spaces on the front ; clypeus obtusely rounded 

 at tip ; punctures numerous, rather sparse on the vertex ; thorax 

 blackish on the anterior and posterior margins ; punctures sub- 

 equidistant ; elytra darker than the head and thorax, very regularly 

 and beautifully punctured ; punctures rather larger than those of 

 the thorax, subequidistant; beneath, excepting the feet, also punc- 

 tured. 



Length more than one-tenth of an inch. 



This is a very pretty species, readily distinguished from others. 



[Belongs to ITydroporus Clairv. — Lec] 



[272] BUPRESTIS Linn. Latr. 



B. MACULATiVENTRis. — Violaceous witli acupreous reflection ; 

 anterior thoracic angles with a spot and a series on each side of 

 the venter, yellow. 



Inhabits North-west Territory. 



Head confluently punctured ; a yellow spot before the eye, 

 almost confluent with another beneath the eye ; thorax with a 

 very distinct margining spot at the anterior angles ; punc- 



( 



