442 Mr. CuRTis's Descriptions of 



58. HiSTER FURCATUS, Curt. 



Nitid^ virescenti-niger, thoracis lateribus bfevl-canaliculatis punctulatis, ely- 

 tris stria suturali curvata basali ti'ibusque versus costam apicern baud 

 attingentibus ; apice punctato. 



Length If line, breadth 1|. 



Shining greenish black, head minutely punctured : thorax with an abbreviated channel close 

 to the lateral margin, the sides punctured, with a line of punctures at the base ; a punc- 

 tured stria down each side of the suture, curved at the base, 2 deep ones towards the 

 costa not reaching the apex, and a shorter one outside ; apex of elytra and abdomen 

 thickly punctured ; anterior tibiae dilated, with 8 or 9 teeth outside, the others spiny. 



One example only ; I believe from Rio. 



59. HiSTER CASTANIPES, Curt. 



Lsevis niger, thoracis lateribus punctulatis, elytrls pedibusque castaneis ; iliis 

 stria suturali furcata duabus aliis aequilongis alteraque humerali bre- 

 viore. 



Length 1| line, breadth l^. 



Black, very smooth and shining ; head minutely punctured, with a semicircular channel : 

 thorax with a depressed puncttired stripe on each side, not touching the margin : elytra 

 castaneous, the disc pitchy, apex punctured ; a sutural stria curved at the base and 

 reaching beyond the middle, 2 others beyond it as long, with a shorter one near the 

 shoulder : abdomen punctured : tibiae compressed and dilated, anterior with 7 or 8 

 rounded teeth outside, the others with a single series of spines. 



A single specimen from Gorrite, at the mouth of the Rio de La Plata. 



Family HyDROPHiuDie. 

 *60. Hydrophilus chalybratus, Curt. 



Nitidus atro-caeruleus, elytris lineis tribus punctulorum remotorum pilife- 

 rorum, palpis antennisque ochreis apice nigris, pedibus subcastaneis ; 

 femoribus piceis. 



Length 6 lines, breadth 3. 



Shining, deep blue-black, exceedingly thickly and minutely punctured; a short impression 

 close to each eye, a doubly recurved loop of punctures on the face, .S lines of remote 

 punctures on the elytra, producing hairs ; the costa violaceous, with long depressed 



