214 CEBAMBYCID^E. 



longer than the tenth in the d , obtuse at the apex ; the joints 

 very feebly or not at all angulate at the apex. Prothorax with a 

 more or less distinct tubercle at the middle of each side. Elytra 

 long, narrowed gradually and very slightly posteriorly, rounded at 

 the apex ; marked in most of the species with yellow spots or 

 bands. Front and middle femora subclavate, gradually thickened 

 from the base ; the hind pair longer and less thickened, do not 

 reach to the apex of the elytra in the tf . First joint of the hind 

 tarsi longer than the second and third united. 



I. Elytra marked ivith yelloiv spots or bands. 

 A. Prothorax distinctly tuberculate at the sides. 



237. Polyzonus saigonensis, Sates, Cist. Ent. ii, p. 413 (1879). 



Dark metallic blue ; the elytra with two very broad, transverse 

 yellow bands placed, one a little before, the other just behind, 

 the middle, the intervening space usually much narrower than 

 either of the bands. Head very densely rugulose-punctate and 

 very slightly nitid. Antennae black, those of the tf slightly longer, 

 and those of the $ slightly shorter, than the body ; first joint 

 stout, slightly curved, marked in front near the base with a broad 

 shallow pit, the edges of which are slightly raised ; joints sixth to 

 tenth feebly angulate at the apex on the anterior side and scarcely 

 broader than the fifth. Prothorax distinctly longer than its width 

 across the middle ; armed with a rather sharp conical tubercle at 

 each side ; more or less intricately rugulose above over its whole 

 surface as well as at the sides ; the disc gradually raised posteriorly, 

 and the basal depression correspondingly abrupt and deep. Scu- 

 tellum sulcate and smooth along the middle, very finely punctulate 

 at the sides. Elytra narrowed gradually from the shoulders, 

 obtusely rounded at the apex, finely and very densely punctulate, 

 faintly covered with pubescence, for the most part opaque. Body 

 beneath blue, covered with silvery-grey pubescence. Femora dark 

 blue, densely punctulate; the hind pair reach nearly to the apex 

 of the elytra in both sexes. First joint of the hind tarsus slightly 

 longer than the next two united. Fifth abdominal segment of the 

 c? sinuate at the apex, the sixth short, and more deeply sinuate 

 at the apex ; fifth segment of 5 obtuse at the apex, with a very 

 feeble emargination in the middle. 



Length 18-20 ; breadth 4-5 mm. 



Hab. Burma : Paungde (Corbett); Cochin China: Saigon ; Malay 

 States: Patani. 



238. Polyzonus tetraspilotns, Hope (Cerambyx), Silberm. Rev. Ent. 



iii, p. 71, pi. 32 (1835). 



Polyzonus quadriinaculatus, White, Cat. Coleopt. jB. M., Lonnic. 

 p. 170 (1853). 



Metallic green ; the elytra each with two oblique yellow spots 



