462 
CHRYSOMELIDiE. 
803. Acrothinium violaceum (PI. II, fig. 1), Jac. Ann. Mas. Civ. 
Genova , xxvii, 1889, p. 180. 
Dark violaceous blue; clothed with thin whitish pubescence; 
antennae and tarsi black. 
Head very closely and deeply punctured, with a short longi- 
tudinal groove between the eyes ; the clypeus separated from the 
face by a deep transverse groove, strongly punctured ; labrum 
black. Antennae black, with the last six joints dilated and 
compressed. Thorax subcylindrical, about half as broad again as 
long, the sides nearly straight, the anterior angles strongly 
produced forwards, the surface deeply and rather closely punctured, 
sparingly clothed with whitish pubesence. Scutellum finely punc- 
tured at the base, its apex broadly rounded. Elytra convex, 
narrowed near the apex, the base slightly raised and bounded below 
by a shallow transverse depression ; the disc deeply impressed with 
round punctures arranged in very close longitudinal rows, the 
interstices also very minutely punctate and clothed with rather 
long whitish hairs. Femora with a very short tooth ; tibiae entire ; 
claws appendiculate. Anterior margin of the thoracic episternum 
convex. Underside sparingly pubescent. 
Length 5-6 mm. 
Hah. Tenasserim : Thagata. 
The uniform dark metallic violaceous colour separates the 
present species from the other two forms now known of this 
genus ; the thorax is of a more blackish-blue than the elytra. 
Genus LOPHEA. 
Lophea, Baly, Journ. Ent. ii, 1865, p. 441 ; Chapuis, Gen. Coleopt. 
x, 1874, p. 316; Lef'ev. Cat. Eumolp. 1885, p. 117. 
Type, L. melancholica , Baly. 
Range. Burma. 
Body subelongate, parallel-sided, subcylindrical, non-metallic, 
clothed with coarse suberect hairs. Head deeply buried in the 
thorax ; eyes entire ; antennas subfiliform, terminal five joints 
slightly thickened and compressed, first joint incrassate, second 
short, third to sixth slender, equal, each rather longer than the 
first. Thorax transversely convex, subglobose on disc, lateral 
border distinct, entire. Elytra broader than thorax, subcylindrical, 
coarsely punctured. Legs robust, femora simple, intermediate 
tibiae entire at apex, not notched ; basal joint of tarsus narrower 
than the second joint, the latter triangular, the third broad at 
base, transverse ; claws appendiculate. Prosternum united with 
the episternum in a single piece, the latter wedge-shaped. 
Differs from Acrothinium in the non-metallic coloration and more 
elongate shape, by the different lengths of the basal joints of the 
antennae, and by the difference in shape of the tarsal joints. In 
Lophea the third joint is distinctly broader than the first, the 
