32 [February, 



as to send me this specimen so that I may be able to speak in a more 

 positive manner than I could do if I had only the brief descriptions 

 of Montrouzier to rely on. 



The insect is not a Proterhinus, but an Aglycyderes, very closely 

 allied to the New Zealand A. Wollastoni. So close indeed is the 

 resemblance that at first I thought the New Caledonian insect would 

 probably prove to be a very large example of A. Wollastoni. Unfor- 

 tunately, the Montrouzier type is in a very fragmentary state, owing 

 to having been when fresh impaled on a large pin ; there is, therefore, 

 some difficulty in speaking with confidence as to its characters, but I 

 think it may be distinguished from A. Wollastoni as follows : — A. 

 Olivieri is larger, has somewhat longer antennae, the head is remarkable 

 for its size, and the anterior part, or clypeus, is larger in proportion to 

 the posterior part than it is in A. Wollastoni. This latter character is 

 of some importance, and prevents me from deciding that the two forms 

 are merely races of one species. 



As regards the generic name PlatycepJiala, I may remark that it 

 was established in the Ann. Soc. Ent. Fr. for 1861, while Westwood's 

 description of Aglycyderes appeared in the Proc. Ent. Soc. Lond. for 

 1863, so that the name proposed by the French savant has a slight 

 priority. It cannot, however, be adopted, as it appears from Scudder's 

 list to have been used several times. It must, therefore, be abandoned, 

 and the species should be known as Aglycyderes Olivieri, though 

 ultimately the New Zealand and New Caledonian insects will be 

 generically separated from the Madeiran one, 



Montrouzier described the feet as composed of only two joints, 

 the first being bilobed. This is a mistake, the feet are really three- 

 jointed, and it is the second joint that is lobed. He also described the 

 antennae as 10-jointed, but this, too, is erroneous, as they are clearly 

 11-jointed ; the basal joint, owing to its mode of insertion, might 

 readily be overlooked ; and this, no doubt, gave rise to the error. 



Cambridge : November 24^A, 1893. 



GN NEW SPECIES OF TROQOSITIBM FROM JAPAN. 

 BY G. LEWIS, P.L.S. 



The richness of the Japanese islands in arboreal Coleoptera is 

 now well known, and it is further illustrated by the occurrence of 

 three species of Thymalus in the Archipelago. With these, I believe, 

 only eight species of Thymalus have been recorded from all parts of 

 the world, the species being : — ■ 



