462 CHBYSOMBLID^E. 



803. Acrothinium violaceum (PL II, fig. 1), Jac. Ann. Mus. Civ. 

 Geneva, 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. 



Hob. 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 ; Lefev. 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 ; antennae 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 



