Longicorn Coleoptera of Japan. 311 



The cicatrice of the scape in this small species is scarcely- 

 visible ; it is present, however, and is limited by a curved rim 

 which is a little less closed than in M. fraudator. In habit it 

 resembles very much a dwarfed specimen of that species ; but 

 there is a well-marked difference in the punctuation of the 

 thorax, which is rather close and uniform ; the pubescence, too, 

 is rather coarser ; the lateral spines are very short. The elytra 

 are rather produced and sharp at the sutural apex ; and the pu- 

 bescence is variegated, the ground-colour being reddish tawny 

 and the very irregular patches dull greyish. The 3rd to 5th 

 antennal joints are simple ; the basal halves of all joints from 

 the third are grey. 



The base of the thorax has two transverse grooves, neither 

 of them very well marked. 



Monohammus (Psacothea) hilaris, Pascoe. 



Monohammus {Psacothea) hilaris, Pascoe, Tr. Ent. Soc. vol. iv. 2nd ser. 

 p. 103. 



Two examples ; in a timber-yard, Nagasaki. Also N. 

 China and I. of Formosa. 



Melanauster chinensis, Forster. 



Melanausler chinensis, Forster, Cent. Ins. p. 39. 



L. punctator, Fab. Syst. El. 



Var. macularia, Thoms. Syst. Ce"ramb. p. 553. 



Many examples. On Eleagnus japonicus ; the larva feeds 

 in the stems. 



All the examples belong to what appears to be the var. ma- 

 cularia, Thoms., which is rather narrower and less strongly 

 tuberculate at the base of the elytra than the ordinary Chinese 

 form, which is no doubt the true chinensis. The var. macularia 

 is also abundant in the I. of Formosa. 



Melanauster glabripennis, Motschulsky. 

 Melanauster glabripennis, Motschulsky, Etudes Entorn. 1860, p. 19. 



Melanauster? ruber, Dalm. 



Melanauster ? ruber, Dalm., in Schonh. Syn. Ins. iii. App. p. 167. 

 M. championi, White, Proc. Zool. Soc. 1858, p. 398. 



Nagasaki. Common, on firs. 



The dense tomentose clothing gives this species a very dif- 

 ferent facies from the rest of the genus Melanauster. The 

 vertex is also narrower, and the antenniferous tubercles more 

 vertical. It has, however, the tuberose mesosternum and finely 

 granulated eyes of Melanauster. 



