NEW SPECIES OF COLEOPTEROUS INSECTS. 363 



than its breadth, the sides slightly tubercled in the middle, 

 having a transverse impressed line anteriorly, pmictured, black 

 with a grey pilosity : elytra oblong, somewhat cylindrical, 

 deeply punctured, black, with a slight metallic shade of green, 

 the shoulders being prominent and of a bright testaceous co- 

 lour : the body beneath is black, and clothed with a grey pi- 

 losity: the fore legs are fulvous, with the exception of a large 

 linear black mark on the femora ; the middle legs are black, 

 the tips of the tihice and the entire tarsi being fulvous ; the 

 hind legs are black, the basal joint of the tarsi alone being 

 fulvous. 



Inhabits North Carolina, East Florida, and (according to 

 Germar) Georgia. 



Three specimens were taken by Messrs. Doubleday and 

 Foster. 



Sp. 2. Hyd. rujipes. Rugose puncta ; nigro-cyanea, oculis nigris, an- 

 tennis pedibusque ferrugineis. (Corp. long. '225 unc. lat. -06 unc.) 



Head finely punctured ; black, with a slight tint of metal- 

 lic blue or green ; eyes black, without any metallic lustre ; 

 mouth and antenn(B ferruginous : prothorax finely punctured, 

 and having a transverse impressed line both anteriorly and 

 posteriorly, and a slight tubercle laterally near the middle ; 

 black, with a metallic tinge : the elytra are deeply and regu- 

 larly punctured, and have a very decided tint of metallic blue : 

 the under parts of the body are black : the legs are ferrugi- 

 nous : the entire insect is clothed with a grey pilosity. 



Inhabits East Florida. A single specimen taken by Mr. 

 Doubleday. 



Sp. 3. Hyd. serrata. (Corp. long. -175 unc. lat. -06 unc.) 



„ „ Newman, ' Entomological Magazine,' vol. v. page 

 379. 



Head finely punctured, black, with a metallic tint, the eyes 

 being perfectly black ; antennce testaceous, with the apex 

 brown : prothorax finely punctured, scarcely longer than 

 broad, having an impressed transverse line anteriorly, and an 

 obvious tubercle on each side, and being much narrowed pos- 

 teriorly ; it is black, with a metallic tinge : the elytra are 

 deeply punctured, black, each having two large, subquadrate, 

 testaceous markings, of which the anterior occupies the basal 

 portion of the elytron, the posterior does not quite reach its 

 apex : the apex itself is curiously serrated. 



Inhabits Ohio. Two specimens taken by Mr. Foster at 

 Mount Pleasant. 



Vol IV.— No. 43. n. s. 2 y 



