342 MR. M. JACOBY ON NEW [JuilC 5, 



anterior margin of the epistome triangularly emarginate ; jaws large 

 and prominent. Antennae black, the three lower joints fulvous, the 

 third joint very small, half the size of the second. Thorax three 

 times broader than long, the sides nearly straight, the posterior 

 margin rounded and produced in the middle, perfectly straight at 

 the sides, the anterior margin narrowly raised at the sides ; scutelhim 

 with a raised central ridge. Elytra very finely and rather closely 

 punctured, the punctures arranged in irregular rows near the suture, 

 fulvous, the base with a transverse black band extending to the 

 suture but not quite to the lateral margin, its posterior edge rather 

 deeply indented at the middle, another band, not quite extending to 

 either margin and slightly oblique, is placed immediately below the 

 middle. Underside and legs black, clothed with yellow pubescence, 

 the base of the tibse fulvous. 



G. bifasciata, although very closely allied to several almost simi- 

 larly coloured species (C nair, Lac, C. kiisteri, Kraatz), seems yet 

 sufficiently to differ to justify its separation ; the first elytral band 

 extends quite to the basal and sutural margin, although not quite to 

 the sides, and the second band is placed immediately below the 

 middle, not so close to the apex as in several allied species ; the 

 fulvous base of the tibise, the rest of the underside being black, will 

 also help to distinguish C. bifasciata ; the female has, as is usual, a 

 much smaller head. Many specimens were obtained. 



ACROTHINIUM CUPRICOLLE, n. sp. 



Metallic blue or green; antennse and legs black; head, thorax, 

 and scutelluni reddish cupreous, finely pubescent, closely punctured ; 

 elytra closely punctate-striate, violaceous blue, the suture greenish, 

 the lateral margin bright cupreous. 



Length 3 lines. 



Head deeply and closely punctured, strigose on the vertex, the 

 latter prceous at the base, the other portion bright cupreous ; labrum 

 and jaws black ; antennae more tlian half the length of the body, the 

 terminal joints slightly thickened and short, the basal two joints 

 more or less fulvous below. Thorax about one half broader than 

 long, subcylindrical, the sides nearly straight, slightly narrowed to- 

 wards the base, the surface sparingly covered with fulvous pubescence, 

 bright metalhc cupreous, strongly and closely punctured ; scutellum 

 metaUic greenish cupreous, pubescent. Elytra with a distinct oblique 

 l)asal depression and a longitudinal groove within the shoulders, 

 closely and rather strongly punctured, the punctures arranged in 

 closely approached semiregular rows, dark metallic violaceous, the 

 suture narrowly metallic green or blue, the lateral margin bright 

 reddish cupreous ; the surface sparingly clothed with stiff blackish 

 hairs. Underside dark blue or greenish, strongly punctured and 

 sparingly pubescent ; legs with a sUght bluish gloss ; the femora 

 with a very small tooth ; the anterior margin of the thoracic epi- 

 sternum convex. 



This beautiful species, of which a great many specimens were 

 received from Kiukiang, may be at once known from the only other 



