CHRISOCIIUS. 
507 
881. Corynodes assamensis, Bali/, Cist. Ent. ii, 1879, p. 439. 
Metallic purplish. Head strongly but not very closely punc- 
tured on the vertex, front with a longitudinal groove which ter- 
minates just above the apex of clypeus in a large ill-defined fovea ; 
clypeus rather broader than long, semi-ovate, separated from the 
face by a deep groove on either side, its extreme apex transverely 
depressed; surface closely punctured, clothed with fulvous hairs. 
Antennae nearly three-fourths the length of body in the <$ , terminal 
six joints only slightly dilated ; scarcely more than half the length of 
the body in the $ , terminal six joints more broadly dilated. Thorax 
rather more than half as broad again as long, sides straight and 
slightly convergent from base to middle, thence rounded and con- 
vergent, to apex ; disc convex, subcylindrical, sparingly punctured, 
impressed at the sides just behind the middle with an ill-defined 
fovea. Elytra narrowly oblong, convex, with a deep transverse de- 
pression or sulcus below the base ; just within the lateral margins 
in both sexes is a broad ill-defined longitudinal groove, within this 
in the 2 is a narrow longitudinal costa that extends from the 
shoulders nearly to the apex of the elytra. Claws appendiculate. 
Length 8-11 mm. 
Hob. Assam. 
Genus CHEYSQCHUS. 
Clirysochus, Redtenb. Fauna Austr. 1848, p. 558 ; Moraivitz , Ilorce 
Hoc. Ent. Ross. i. 1801, p. 159; Marshall, Journ. Linn. Hoc. viii, 
1865, p. 48 ; Bah/, Trans. Ent. Hoc. (3) xiv, 1867, p. 133 ; Chapuis, 
Gen. Cole opt. x, 1874, p. 341. 
Type, C. pretiosus , Eabr., European. 
Range. Europe; N. America ; India; China; Japan. 
Head inserted as far as the eyes in the thorax ; eyes surrounded 
by a narrow sulcus ; clypeus feebly separated from the face ; 
antennae subfiliform, the terminal joints only slightly thickened. 
Thorax narrower than the elytra, similar in shape to that of 
Corynodes but as a rule less conical. Claws appendiculate (in the 
type) or bifid. 
The absence of the deep supraocular cavities separates this 
genus from Corynodes, with which it otherwise agrees in metallic 
coloration and proportionately large size ; the antennae never 
have broadly dilated but only slightly thickened terminal joints. 
882. Chrysochus sikhima, sp. n. 
Violaceous-blue ; second and third joints of the antennae obscure 
piceous. 
Elongate, nearly parallel-sided. Head sparingly and finely 
punctured ; clypeus feebly separated at the sides, very finely and 
closely punctured, finely pubescent on the anterior margin ; labrum 
and palpi black ; antennae bluish-black or with the second and 
third joints more or less piceous, the terminal joints gradually but 
