384 Mr. H. W. Bates on the Longicorn Coleoj)tera 



gentibus ; thorace vittis sex, elytris maculis parvis partim con- 

 fluentibus, cinereo-fulvis, his apice cano marginatis sinuato-trun- 

 catis, angulis exterioribus spinosis. Long. 3|-5 lin. $ . 



Head blackish^ forehead streaked with ashy-tawny, vertex 

 with two ashy-tawny lines diverging on the occiput. Antennae 

 black or reddish, fourth, sixth, eighth, and tenth joints with a 

 whitish ring at their bases. Thorax black, with three ashy- 

 tawny longitudinal lines on each side; the sternum and the 

 sides above the coxae also tawny- ashy : on the surface near the 

 base are two distinct punctures, besides the row along the 

 hind margin. Elytra moderately elongated and tapering, deep 

 brownish black, covered with little oblong tawny-ashy spots, 

 which are collected together irregularly in some places, leaving 

 small spaces of the ground-colour; the apex has a hoary spot. 

 Body beneath tawny-ashy ; abdomen spotted (as in the allied 

 species) with black. Legs blackish, spotted with grey. 



? . Terminal ventral plate simply sinuate-truncate, angles not 

 produced ; dorsal plate narrower, emarginate at apex. 



Branches of dead trees, Para. 



14. CoIobotheapauIina,n.sip, 



C. robustior, modice elongata, fusco-nigra ; capitis vertice lineis 

 duabus divergentibus ; thorace vittis sex, elytris maculis parvis 

 oblougis discretis, cinereo-fulvis, apice cano marginatis, sinuato- 

 truncatis, angulis exterioribus spinosis. Long. 4-6 lin. $ . 



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

 tawny lines diverging on the occiput. Thorax black, with three 

 tawny-ashy lines on each side ; the sides above the coxae and the 

 sternum of the same colour ; surface wanting the two punctures 

 near the base which are distinctive of C. seminalis. Elytra 

 brownish black, sprinkled with a number of small oblong tawny- 

 ashy spots, which are so arranged as to leave black undefined 

 spaces in the situations where lateral spots or fasciae are usually 

 situated in the allied species; apex edged with hoary white. 

 Body beneath ashy-tawny ; abdomen spotted with black on the 

 sides. Legs black, spotted with grey. 



$ . Terminal ventral plate broadly emarginated at the apex, 

 and with a tooth in the middle of the emargination ; angles 

 produced into spines. Dorsal plate tapering, obtuse. 



Upper Amazons, at S. Paulo, on branches of dead trees. The 

 species has also been found in the interior of French Guiana by 

 M.Bar. A closely allied form is found in Venezuela; but it 

 diflPers greatly in the shape of the terminal abdominal segment 

 in the female*. 



* Colobothea mosaica (Deyrolle, MS.). Modice elongata, nigra, griseo 

 maculata. Caput nigrum, orbita oculorum griseo marginata. An- 



