^TRANSACTIONS 



ENTOMOLOGICAL SOCIETY 



LONDON. 



I. Descriptions of the Species of the Australian Lamellicorn 

 Genus Cryptodus. By J. O. Westwood, Esq., F.L.S., 



&c. 



[Read 7th January, 1856.] 



The interest always attached to anomalous forms will doubtless 

 be considered a sufficient reason for my troubling the Society 

 with the following descriptions of the species of the genus Cryp- 

 todus of Mac Leay, belonging to the Lamellicorn Coleoptera, and 

 which has been well observed to be the most singular of all the 

 Petalocerous groups, as may, indeed, be easily imagined from its 

 having been arranged in the several families Trogidce, Cetoniidce and 

 Di/nastidce, to which last-named group it appears to me unquestion- 

 ably to belong, as I have endeavoured to prove in an article pub- 

 lished in the fourth volume of the first series of our Transactions 

 (p. 19). The genus was founded upon a single species significantly 

 named Cr. paradoxus by Mac Leay ; and in the memoir above 

 referred to I added a second species, differing from the type in 

 the number of the joints of its antennae (C. Tasmannianus, op. cit. 

 p. 21). Short descriptions were subsequently published by Dr. 

 Germar of two more species ; and I have now the pleasure to 

 describe several additional species. 



VOL. IV. N. S. PART I. -JULY, 1 856. B 



