250 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [May 8, 



Head not exsertetl, subquadrate in front ; the forehead deeply 

 sulcate ; antennary tubers very robust. Antennae rather stout, longer 

 than the body in both sexes, pubescent, not fringed ; the scape nar- 

 rowly obconic ; the third joint scarcely longer than the scape ; the 

 remainder gradually shorter, except the last, which is a little longer 

 than the preceding. Prothorax transverse, strongly spined at the 

 sides ; the propectus short. Legs nearly equal in size. Prosternum 

 rounded. Mesosternum elevated, toothed. 



The relative proportion of the antennal joints, the equal size of 

 the legs, and the toothed mesosternum would have distinguished 

 this genus from Monochamus, to which the type has been referred, 

 without the characters of the shortened head and prothorax, 

 which, as we venture to think, accord better with the more normal 

 Lamiince. 



BlEPEPHjEUS succinctor. 



Monohammus succinctor, Chevrolat, Rev. et Mag. de Zool. 1852, 

 p. 417. 



Monohammus sublineatus, White, Proc. Zool. Soc. 1858, p. 410. 

 Monohammus obfuscatus, White, I. c. p. 411. 



Rather variable as to colour. This species appears to be abundant 

 at Penang ; it has also been found in India (Dacca) and in China 

 (Hong Kong). 



Epicedia. 



Epicedia, J. Thomson, Syst. Ceramb. p. 78. 



Epicedia plagiata. 



Leprodera plagiata, J. Thomson, Arch. Entom. i. p. 1/8. 



This is the Leprodera trimaculata, Chev., according to M. J. 

 Thomson — an unpublished name, I believe. The genus Leprodera 

 of Dejean's catalogue was first published by M. J. Thomson with L. 

 elongata as the type and L. pleuricausta as one of its members. 

 The latter, which is the Lamia carcelii of Gueriu, is separated in the 

 ' Systema ' to form the genus Epicedia, chiefly distinguished by the 

 shorter antennae in both sexes, and the shorter anterior legs. Ar- 

 chidice, Thorns., and Euoplia, Hope, are also nearly allied genera. 

 I have several undescribed species which cannot be satisfactorily re- 

 ferred to any of these, but which are all more or less nearly related 

 by habit and coloration, yet at the same time with characters suffi- 

 ciently distinctive to probably necessitate the institution of more 

 genera for their reception. Two of these species are in Mr. Lamb's 

 collection, both of them have simple mesosterna ; and one has the 

 apex of the scape entire, a very important character generally. I 

 prefer leaving these alone at present, or until they can be all more 

 thoroughly examined. 



Monochamus. 

 Monochamus, Serville, Ann. de la Soc. Ent. de France, t. 4. p. 91. 



