508 Longicornia Malayana. 



with strong prominent mandibles ; antennary tubers 

 deeply notched at the apex ; intermediate cotyloid cavi- 

 ties open externally ; and prosternum vertically truncate 

 behind. America and Australia are poorly represented 

 in this sub-family. Ctrambyx is the only* European 

 genus. In Africa and the Malayan region they are 

 numerous^ and many are found in India, Ceylon, China, 

 &c. Lachnopterus forms an exception, in these the eyes 

 are finely granulate. 



Genera. 



Anterior cotyloid cavities angulate externally. 



Anten. $ flabellate, 12-jointed... Cj/r iopal us, I*asc. 

 Anten. cJ not flabellate, 11 -jointed... Neoceraiulyx, 



Thoms. 

 Anterior cotyloid cavities not angulate externally. 

 Eyes coarsely granulate. 



Antennae spined Eoploceramhyx, 



Thoms. 

 Antenna3 not spined. 



Post, tarsi ^\^th basal joint short- 

 er than two next together. 



Elytra carinate Xoanodera, Va,?,c. 



Elytra not carinate. 



Prost. truncate behind, tu- 

 bercled inferiorly. 

 Ant. tubers short, not 



approximate ZatrejjJnis, Vase. 



Ant. tubers prominent, 

 approximate. 

 Legs short ; tibite of 



equal length Iinbrins, Pasc. 



* M. Lacordaire says two, including Pachydissus, Newm., to which 

 Ceramhyx Nerii, Er., is referred, and which has been foiiud at Nice. The 

 extension given by M. Thomson to Pachydissus, in which he has been 

 followed by M. Lacordaire, is, I venture to think, untenable. The latter 

 says, " the essential character which distinguishes it (Pachydissus) from all 

 the prece(lin<,' resides in the lower lobe of the eyes, which advances, more 

 or less (sometimes scarcely at all — parfois peu — ) below the antennary 

 tubers." Among the species, only a part of which were known to M. 

 Lacordaire, we find associated together are, indutus, venu^tiis, micaceus, 

 picipennis, &c. I hope at no distant period to refer all the species — 

 nearly half of them described by me mider the generic name of Ceramhyx 

 — enumerated in M. Lacordaire's note (p. 2^7) to their modern genera. 



