of the Amazons Valley. 107 



race vittis quatuor (quarum duabus externis usque ad oculos ex- 

 tensis) fulvo-cinereis ; elvtris basi tborace vix latioribus, apice 

 truncatis, angulis externis spinosis, maculis cinereo-fulvis con- 

 fluentibus dense vestitis, apice macula magna nigra. Long. 6-9 

 lin. 3 2 • 



Head black, forehead streaked with tawny ashy, vertex with a 

 single line ; occiput on each side with a short line continuous with 

 the external thoracic stripe, cheeks with a transverse stripe con- 

 tinuous with the supracoxal vitta. Antennre black, sixth joint with 

 a broad white ring. Thorax black, surface with four rather thick 

 tawny-ashy lines, sides having only the supracoxal vitta. Elytra 

 elongated, scarcely tapering ; shoulders very oblique, and not at 

 all prominent ; apex truncate, external angles spinose ; surface 

 very thickly clothed with tawny or tawny-ashy spots, mostly 

 confluent, but leaving a broad unspotted space at the apex, the 

 latter margined with tawny white. Body beneath ashy, sides 

 streaked with tawny ; abdomen spotted with black. Legs black, 

 ringed with tawny and grey. 



<$ . Terminal abdominal segment narrowed from the base ; 

 dorsal plate deeply notched ; ventral plate semicircularly emar- 

 ginated, with angles much produced. Anterior tarsi widely 

 dilated and fringed. 



$ . Terminal abdominal segment elongate and much nar- 

 rowed ; dorsal plate very obtuse, ventral truncated, angles 

 slightly prominent. 



Para, and banks of the Tapajos. 



38. Colobothea bilineata, n. sp. 



C. valde elongata, postice vix attemiata, nigra, vertice linea unica, 

 thorace lineis duabus usque ad oculos extensis, griseis ; elytris 

 a;riseis, nigro dense maculatis, apice macula magna nigra. Long. 

 7-10^ lin. c?. 



Head black, forehead streaked with ashy, vertex with a single 

 line, occiput on each side with a short line continuous with the 

 thoracic stripe ; cheeks crossed by an ashy streak continuous 

 with the supracoxal vitta. Antennse black, sixth joint with a 

 broad white ring. Thorax black, surface with only two ashy 

 stripes, each continuous to the hind margin of the eye. Elytra 

 elongate and scarcely tapering, very little broader at the base 

 than the thorax, but shoulders prominent and conical ; apex 

 sinuate-truncate, the sutural angles being prominent and acute, 

 the outer angles spinose ; surface grey, thickly spotted with 

 black ; some of the spots confluent, and a large spot at the apex 

 spotless ; apex itself edged with white. Body beneath thinly 

 clothed with grey ; abdomen spotted with black. Legs black, 

 ringed with grey. 



8* 



