of the Amazons Valley. 393 



que maculis confluentibus cinereo-fulvis, his spatio apicali nigro ; 

 antennis robustissimis ( c? ), nigris, articulo sexto annulo lato albo, 

 8^" et 10™° basi cinereis. Long. ^-^ lin. S , 



Head black, with ashy lines, vertex with two divergent tawny- 

 ashy lines. Antennae ( ^ ) extremely stout, gradually tapering 

 to the apex, deep black; the joints from the base to the sixth 

 spotless ; the sixth has a white ring occupying two-thirds of the 

 length of the joint ; the base of the eighth joint is grey (on one 

 side only), and the tenth joint has an ashy ring. Thorax deep 

 black, the central part with two ashy-tawny vittse not continuous 

 with the lines of the crown, and parallel ; the sides near the 

 episternum have also each a tawny-ashy line. Elytra tapering 

 in straight lines to the apex, the latter truncated, with sutural 

 angle not produced, external dentiform ; surface thinly and irre- 

 gularly sprinkled with punctures, each of which has a very short 

 strong bristle, and being surmounted by a granule ; olivaceous- 

 black, sprinkled with ashy or tawny-ashy specks, everywhere con- 

 fluent and forming a marbled pattern, but leaving a black space 

 near the apex ; apex itself edged with ashy. Body beneath grey, 

 varied with tawny, and having, in fresh examples, a tawny-ochreous 

 lateral vitta from the front edge of the prothorax to the last 

 segment of the abdomen ; abdomen thinly clothed with grey pile, 

 sides spotted with black. Legs black, thinly clothed with grey 

 pile ; knees and tips of tibiae and tarsi black. 



(^. Legs elongated and robust; anterior tarsi dilated and 

 fringed. Terminal ventral segment semicircularly sinuated at 

 the apex, with the angles acute and produced; dorsal plate 

 broad, obtuse, faintly emarginated. 



Obydos, Lower Amazons. 



27. Colohothea carneola, n. sp. 



C elongata, postice modice attenuata, nigra ; thorace vittis quatuor, 

 elytrisque maculis numerosis discretis, earneo-fulvis, his spatio 

 apicali nigro ; antennis {S) normalibus, articulis 4***, 6*°, 8^°, 10*"° 

 albo annulatis. Long. 5 j lin. S . 



Very closely allied to C. pura, but differs in the degree of 

 robustness and coloration of the antennse, and in the spots 

 on the elytra being nearly all quite separate and inclining in 

 colour towards pinkish red. The elytra are sprinkled with 

 punctures, as in C. puraj but they are not so conspicuous, 

 nor surmounted by elevated points ; the bristles are more nu- 

 merous towards the apex, although the punctures from which 

 they arise are not conspicuous. Body beneath and legs as in 

 C pura, 



S . Terminal ventral segment semicircularly sinuated at the 



Ann, ^'Maff. Nat, Hist, Ser. 3. VoLxv, 26 



