PAPERS READ, 



REVISION OF THE GENUS LA MP RI MA OF LATREILLE, 

 WITH DESCRIPTIONS OF NEW SPECIES. 



By William Macleay, F.L.S., &c. 



Mr. C. French of the Botanical Museum of Melbourne, sent 

 me very recently a veiy beautiful Pecticorn Insect which he had 

 received from North Australia. The section of the Lucanidse to 

 which this fine Insect belongs, — the Subfamily Lamprimidse — is 

 almost peculiar to the Australian Region as defined by Wallace, 

 indeed the only exception to its entii-ely Australian character, is 

 in the case of the genus Streptocerus, which is Chilian, and is not 

 by any means the only instance in which aflinities have been found 

 between the Fauna of South America and Australia. 



The chief characters which distinguish the Lamprimidse from 

 the other Sub-families of the Lucanidse, are the narrow presternum, 

 only showing between the fore legs in a narrow keel, and the large 

 and exserted mandibles of the males, which are however, never so 

 largely produced as in the kindred American genus Chasiognathus. 



With the exception of Streptocerus — the only foreign genus, 

 the genera of the Sub-family, are four, viz., Dendroblax, represented 

 by one species from New Zealand. Rhysso7iotus, consisting of 

 three species, — nehulosus Kirby, found in New South Wales and 



