This is a remarkable species of Cryptocephalus in several respect, 

 the curious structure ofthe thorax and the toothed prosternum is 

 unique amongstthe numerous forms which hâve corne under my 

 observation. M. Fairmaire has described a C. sternalis likewise 

 from Madagascar which has however the prosternum bidentate at 

 the apex, but has a somewhat similarly structured thorax, but not 

 identical nor is the coloration the same; another species described 

 by the same author C. crenidicollis from Madagascar seems to hâve 

 a somewhat similar coloration and also the silvery pubescence of 

 the head, but the colour of the elytra is not given, so it is impossible 

 to recognise the species which moreover Fairmaire compares with 

 C. enchlones Dohrn. (no such species has been described, but 

 C. enchlorus is doubtless meant). 



Of the présent insect, a single spécimen is contained in my. 

 collection. 



CRYPTOCEPHALUS CERULEIPENNIS n. sp. 



Blackish-blue, the basai joints of the antennae fulvous, thorax 

 impunctate, reddish fulvous, with three small piceous spots ; elytra 

 metallic blue, strongly punctate-striate, the interstices transversely 

 rugose anteriorly, legs piceous. 



Length 8 mill. 



Elongate and subcylindrical, the head dark bluish, extremely 

 finely punctured, depressed between the eyes, the latter broadly 

 and subangulately emarginate, clypeus broad, subquadrate, its 

 anterior margin emarginate, labrum black, margined with flavous, 

 antennaî extending to nearly the middle of the elytra, black, the 

 lower four joints fulvous, third and fourth joint elongate, equal, 

 terminal ones shorter; thorax twice as broad as long, strongly 

 subcylindrical, the sides nearly straight and obliquely narrowed 

 anteriorly, the médian lobe ofthe basai margin concave-emarginate, 

 the sides of the emargination produced into a point, the surface 

 entirely impunctate, reddish-fulvous, with three small piceous spots 

 placed transversely at the middle, scutellum black, subquadrate, 

 raised, its apex truncate; elytra slightly narrowed towards the 

 apex, of a bright metallic greenish blue, with large and deep 

 punctures arranged in regular rows, the interstices transversely 

 rugose anteriorly, the punctures diminishing in size towards the 

 apex ; below and the legs nearly black, with a bluish tint, finely 

 pubescent, the prosternum broad, its base truncate, slightly 

 sinuate. 



Ilah, Diego Suarez. 



Iknow of no other similarly coloured species from Madagascar; 



