414 REVISION OP THE AUSTRALIAN AMARYGMIDES, 



not since been identified. M. Lacordaire distinguishes Amarygmvs 

 from the other genera of the tribe by the following characters in 

 combination : — eyes partly hidden under the prothorax, intercoxal 

 process of the hind body short and triangular. Two years after 

 the issue of M. Lacordaire's work on the tribe, M. Blessig, in an 

 admirable memoir published by the Russian Entomological 

 Society, pointed out that some at least (he thought probably all) 

 of the Australian species attributed to Amarygmus differed from 

 some at least of the species occurring in Java, &c., by their 

 mandibles being widely and evenly truncate at the apex (instead 

 of bifid), and he proposed for these species with the mandibles 

 widely truncate the new name Chalcopterus, at the same time 

 describing four Victorian species as new and appertaining to his 

 new genus. Since that time no author (except myself) has 

 attributed any more species to Chalcopterus ; but as Amarygmi 

 there have been published, in various periodicals, 21 new species 

 by Mr. Pascoe, 11 by Sir W. Macleay, 1 by Haag-Rutenberg, 

 and by myself 3, together with 4 Chalcoptei-i. In 1870 Mr. 

 Pascoe published (Ann. Nat. Hist. p. 106) a diagnosis of a new 

 genus (Eurypera) near Amarygmus : the diagnosis, however, is 

 utterly insufficient (as defective as anything Boisduval ever did), 

 stating that the new genus differs from Amarygmus, only by its 

 " shorter and more convex body." "Until something further is 

 forthcoming regarding this genus I decline to recognise it and 

 shall treat it as non-existent. As I have seen no species re- 

 sembling Amarygmus which agrees with Mr. Pascoe's description 

 of his type of Eurypera, I have no means of supplementing his 

 diagnosis. 



As I have already remarked (P.L.S.N.S.W, 1888, p. 1434), 

 among the Australian species attributed to Amarygmxis there are 

 some whose mandibles are bifid at the apex. Whether these are 

 really congeneric with Amarygmus speciosus, Dalm., ornot is at 

 present incapable of determination, I believe. Indeed, unless I 

 am mistaken, the form of the mandibles in A. speciosus itself is 

 uncertain, and it is quite possible that it may be an Australian 

 species with truncate mandibles, in which case M. Blessig's name 



