COR YN ODES. 
505 
More nearly allied to C. dohrni , Baly, than to any other 
species, but more narrowed posteriorly, the head different in 
structure, the thorax shorter, and the general colour very dark 
violaceous. 
878. Corynodes tridentatus, sp. n. 
2 . Metallic dark blue. Head with deep central groove on the 
vertex, remotely but distinctly punctured, apex of anterior portion 
produced into three acute teeth ; clypeus separated from the face by 
a deep transverse sulcus, broader than long, very closely and finely 
punctured ; labruin black ; antennae entirely black, not extending 
to the middle of the elytra, terminal five joints strongly widened, 
broader than long. Thorax conical, gradually narrowed towards 
apex, lateral margins straight ; surface finely and irregularly 
punctured, very sparingly so and strigose at the sides, more 
closely in the middle, but leaving a small central space nearly 
smooth. Scutellum rather longer than broad. Elytra parallel- 
sided, rather deeply transversely depressed below the base, very 
closely and somewhat regularly punctured, punctures not larger 
than those on the thorax, extreme lateral margins purplish. Breast 
impunctate ; abdomen finely punctured. Claws appendiculate. 
Length 10 mm. 
Hah. India. Type in Brit. Mus. 
Can be distinguished by the black antennae and tridentate 
margin to the face. 
879. Corynodes dohrni, Body , Descript. new gen. fy spec. Phytoph. 1804, 
p. 4 ; Marshall , Jowrn. IAnn. Soc., Zool. viii, 1865, p. 39. 
Violaceous-blue ; basal joints of antennae (first excepted) 
fulvous. 
<5 . Vertex strongly convex, puncturation variable, generally 
subremote, a more or less strongly marked central groove ; 
clypeus extremely closely and finely punctured, strongly separated 
from the face, the base marked with a tubercle ; antennae with 
the basal joint blue, following five joints light fulvous, rest 
purplish-black, broadly dilated. Thorax slightly narrowed in 
front, conical when looked at from above, lateral margins nearly 
straight, punctures deep and remotely placed. Elytra with pro- 
minent shoulders, a short and deep depression below the base, 
not extending to the sides ; surface punctured like the thorax, 
punctures placed in irregular rows, lateral margins preceded by a 
strong costa. Claws appendiculate. 
Vcir. (?). Metallic green ; sides of elytra purplish, apex pubes- 
cent ; body beneath and legs aureous or cupreous. 
Length 8-10 mm. 
Bab. Ceylon. 
Differs from C. peregrinus in the much more finely punctured 
