386 Mr. H. W» Bates on the Longicorn Coleoptera 



covered with distinct ashy-tawny spots, arranged partly in rows, 

 but interrupted by oblique clear spaces near the base, at the 

 middle, and near the apex : apex with an ashy spot on each ely- 

 tron, much enlarged towards the suture. Body beneath clothed 

 with tawny-ashy tomentum ; abdomen spotted with black. Legs 

 reddish, spotted with black and ashy. 



% . Terminal ventral segment strongly tapering; ventral plate 

 truncate, angles produced into lengthy spines; dorsal plate 

 rounded at apex. 



S. Paulo, Upper Amazons. It is very closely allied to C. va- 

 rictty but differs in the thoracic markings from all the numerous 

 specimens which I have examined of that species. 



17. Colohothea ncsvia, n. sp. 



C. elongata, nigra ; thorace vittis quatuor tenuibus, elytris maculis 

 parvis, rotundatis, dispersis, cinereis ; corpore subtus vitta laterali 

 fulvo-cinerea tomentosa infra nigro marginata. Long.4|-61in. c5' $ . 



Head black, streaked with tawny, vertex with two diverging 

 lines of the same colour. Thorax black, with four tawny-ashy 

 lines, the two dorsal ones not at all divergent. Elytra some- 

 what more elongated than in the preceding species ; apex trun- 

 cate, outer angles spinose ; surface black, shining, and sprinkled 

 with rounded tawny-ashy scattered spots, which sometimes leave 

 a clear space behind the middle and near the apex ; apex mar- 

 gined with whitish. Body beneath greyish ; each side with a 

 broad stripe of dense tawny tomentum extending from the front 

 margin of the prothorax to the tip of the abdomen, interrupted 

 on each segment of the latter by a black spot. Legs ashy, 

 spotted with black. 



(^ . Terminal ventral segment elongated, flattened, tapering, 

 very much longer than the dorsal, and deeply notched at the 

 apex. Anterior tarsi not dilated, but fringed with long fine 

 hairs. 



$ . Terminal ventral segment tapering, apex sinuate-trun- 

 cate, angles spinose; dorsal segment obtuse at apex, slightly 

 notched in the middle. 



On branches of dead trees, Ega. An abundant species. 



18. Colohothea juncea, n. sp. 



C. gracilior, angustata, fusca ; thorace cinereo-fulvo, vittis septem 

 fuscis ; elytris pone humeros sensim, apices versus citius attenuatis, 

 maculis parvis cinereo-fulvis plerumque confluentibus. Long. 

 4ilin. $. 



Head blackish, streaked with ashy-tawny, vertex with two 

 diverging tawny lines. Thorax ashy-tawny, with seven blackish 

 vittse. Elytra slender, tapering gradually from the shoulders to 



