214 CEEAMBYCID.ir. 



longer than the tenth in the J , obtuse at the apex : the joints 

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

 more or less distincr 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 

 bauds. 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 cJ . First joint of the hind 

 tarsi longer than the second and third united. 



I. Elytra mavTced ivith yelloiu spots or hands. 

 A. Prothorax distinclhj tuhercidate at the sides. 



237. Polyzonus saigonensis, Bates, 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 thau 

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

 very slightly uitid. Antennre black, those of the S slightly longer, 

 and those of the 5 slightly shorter, than the body : first joint 

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

 shallow pit, the edges of wliich are slightl}' 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 \\\i\\ pubescence, for the most part opaque. Bodv 

 beneath blue, covered with silvery-grey ])ubescence. Femora dark 

 blue, densely punctulate; the hiud 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 

 (S sinuate at the apex, the sixth short, and more deeply sinuate 

 at the apex ; fifth segment of 5 obtuse at the apex, with a ver}'' 

 feeble emargination in the middle. 



Length 18-20 ; breadth 4-5 mm. 



Hab. Burma : Paungde {Corbett}; Cochin China: Saigon ; Malay 

 States : Patani. 



238. Polyzonus tetraspilotus, Hope (Cerambvx), Silbenn. Her. Eut. 



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

 Polvzonus quadrimaculatus, White, Cat. Coleont. B. M., Longic. 

 p: 170 (1853). 



Metallic green ; the elytra each with two oblique yellow spots 



