COLA.SPOSOMA. 449 



so closely punctured as the thorax, the punctures arranged in 

 irregular rows; the interstices also very minutely punctured, 

 transversely rugose at the sides, the rugosities assuming the 

 shape oh' tubercles behind the middle near the lateral margin ( $ ). 

 Underside and legs piceous, with a slight metallic gloss. 



Length 45 mm. 



Hob. Burma : Teinzo, Bhamo. 



Very closely allied in sculpture to G. alboviUosum, Duv., but 

 without any pubescence and the punctures on the thorax and 

 elytra still more numerous, finer and more evenly distributed ; 

 the colour of the antennae also differs ; the scutellum is much 

 smaller and scarcely punctured. The difference in the width of 

 the thorax in the sexes is very great: in both this part has 

 a distinct reflexed lateral margin, the latter is also subangulate 

 behind the middle. 



As regards the male, the species is very difficult to distinguish 

 from C. asperatum, Lefev., and may possibly be identical with 

 it, but Lefevre's description is too general for a more certain 

 identification. 



Elytra strongly depressed beloiv base. 



784. Colasposoma bicoloratum, sp. n. 

 Dark violaceous ; elytra cupreous. 



Head closely punctured and strigose above the eyes ; base of 

 clypeus rugose, with the usual tubercle ; labrum black ; antennae 

 long and slender, basal six joints purplish, rest black, terminal 

 joints elongate, only slightly thickened. Thorax more than 

 twice as broad as long, sides very strongly rounded, punctures 

 finer than those on the head, very closely placed aud evenly 

 distributed, not deeper and more distantly arranged at the sides. 

 Scutellum purplish-blue, with a few punctures. Elytra wider at 

 base than the thorax, punctures as fine as those on the thorax, 

 arranged in rows ; sides below shoulders with a distinct transverse 

 depression, more deeply punctured aud rugose. Legs violaceous 

 blue; anterior tibiae of male strongly widened at the apex. 



Length 8 mm. 



Hob. Bombay (Coll. Jacoby}. 



Closely allied in coloration to C. pretiosum, Baly, but the 

 sculpture quite different, that of the thorax less closely placed, of 

 the elytra arranged in rows, much finer ; the interstices not finely 

 rugose. 



785. Colasposoma pretiosum (PI. II, fig. 7), Baly, Journ. Ent. i, 



1860, p. 36. 

 Colasposoma thibettanum, Jac. Entomologist Suppl. 1891, p. 35. 



Metallic blue or violaceous ; antennae and tarsi black ; elytra 

 reddish-cupreous. 



3 . Broadly subquadrate-oblong. Head closely punctured, vertex 

 strieose at the sides ; three small smooth metallic green tubercles 



TOL.I. 2 a 



