506 CHBYSdHSLIBJE. 



thorax and elytra, the distinct costa on the latter near the 

 margins, and the appendiculate not bifid claws ; the elytral 

 punctures are not invisible near apex as Marshall states, but on 

 the contrary quite distinct. The sexes differ but little. 



Whether the metallic-green form with pubescence at the apex 

 of the elytra and the reddish- cupreous underside is really a variety 

 or a distinct species I cannot say. I cannot find any structural 

 differences. 



880. Corynodes nitidus, Fabr. (Cln-ysomela) Ent. Syst. i, 1792, p. 325. 

 Corynodes approximans, Baly (Platycorynus), Descript. new yen. fy 



tpec. Phytoph. 1864, p. 6. 

 Corynodes hyacinthinus, Marshall, Journ. Linn. Soc., Zool. viii, 



1865, p. 42. 

 Corynodes amoenus, Lefev. Bull. Soc, Ent. Bcly. xxxv, 1891, 



p. cclxxvii. 



J . Dark blue or violaceous. Head rather remotely and 

 strongly punctured, generally with a deep triangular cavity on the 

 forehead ; clypeus separated by a deep transverse sulcus, finely 

 and closely punctured, transverse ; antennte bluish-black, reaching 

 nearly to the middle of the elytra, basal six joints shining, the 

 rest broadly dilated, opaque, third and fourth joints equal. Thorax 

 about half as broad again as long, subqnadrate, lateral margins 

 very feebly rounded and very slightly narrowed anteriorly ; 

 surface very remotely and sparingly punctured, the punctures 

 shallow, sides of thorax when seen from above rather strongly 

 deflexed anteriorly. Scutellum smooth. Elytra parallel-sided 

 and cylindrical with a deep transverse depression below the base, 

 joined to another equally deep depression in front of the shoulders 

 that extends to the basal margin ; surface rather finely, closely and 

 regularly punctate-striate, punctures within the basal depressions 

 stronger, the others much more distinctly marked than those on 

 the thorax. Intermediate femora slightly dilated into a small tooth 

 beneath. Claws appendiculate. 



5 . Elytra with an acute costa at the sides from before the 

 middle to apex and a more obsolete and shorter costa near the 

 lateral margins. 



Length 9-10 mm. 



Hob. Bombay : Kanara ; Penang ; Sumatra ; Java. 



The above description is drawn up from the type of Fabricius 

 in the Bauksian Collection in the British Museum. Marshall's 

 types of the synonyms as given above are likewise contained in 

 the Museum collection and cannot be separated specifically ; but 

 C. sheppardi, Baly, which is united by Marshall and Lefevre with 

 C. nitidus, is in every respect a totally different species, while so 

 far as the description of 0. amoenus goes it agrees in every detail 

 with Fabricius's type. 



