218 Mr. H. W. Bates on the Longicorn Coleoptera 



utrinqiie paulo ante basin tumido, deinde paulo constricto ; pedibus 

 rufis, griseo annulatis. Long. 5-6^ lin. c? $ • 



Head reddish, cheeks and vertex each with a pinkish-ashy 

 stripe. Antennae one-fourth longer than the body, dark red, 

 becoming blacker towards the apices and greyish at the bases of 

 the joints. Thorax widened from the front to a short distance 

 from the base, where it is tumid on each side and after that con- 

 stricted ; surface pinkish ashy (the tomentum very compact), 

 each side occupied by a broad velvety-black vitta, below this is a 

 pinkish-ashy stripe succeeded by another black one. Scutellum 

 pinkish tawny. Elytra elongated and tapering from base to apex, 

 but appearing to have a flexuous outline, from the great promi- 

 nence, after the middle, of a raised line which runs along the de- 

 flexed sides very near to the extreme margin ; apex obliquely sinu- 

 ate-truncate, sutural angles prominent, external angles produced 

 into a long spine ; the lateral carina proceeding from the promi- 

 nent shoulders runs in a strongly flexuous course to near the apex ; 

 surface punctured, pinkish grey, and ornamented, on each elytron, 

 with four rich velvety-black spots, namely, one triangular in the 

 middle of the base, a second long and oblique, stretching from 

 under the shoulder to the disk of the elytron, a third, angulated, 

 behind the middle, and a fifth, oblique, near the apex, all margined 

 with pinkish tomentum. Body beneath blackish, clothed with 

 grey pile; breast red. Legs red, ringed with grey; fore tarsi 

 simple in both sexes. 



6 Terminal ventral segment with a broad triangular excision, 

 angles acute; dorsal segment obtuse, narrov/ly notched in the 

 middle. 



$ Terminal ventral segment with a deep semioval excision, 

 angles acute but not produced; dorsal segment with a broad 

 notch in the middle. 



This extremely beautiful species was rare. I met with it only 

 at Obydos and on the banks of the Tapajos. It is found in 

 Cayenne, and I have adopted the MS. name under which it 

 exists in some collections in Paris. 



4. Colobothea flavomaculata, n. sp. 



C. parva, angustata, postice attenuata, purpureo-nigra ; capita lineis 

 tribus, thorace lineolis transversis lateralibus alteraque dorsali, 

 elytris maculis sex apiceque sulphureis. Long. 3|— 4 lin. S $ . 



Head black, front with three sulphur-yellow lines, the middle 

 one extending to the occiput ; cheeks with a yellow line behind 

 the eyes. Antennae twice the length of the body in both sexes, 

 pitchy black, bases of the fourth and sixth joints with pale grey 

 rings. Thorax rather small, tumid on the sides in the middle, 

 constricted near the base; purplish black, the sides each with 



