of Lucanoid Coleoptera. 21 
described and figured by Mr. W. Saunders in Trans. Ent. Soe. 
N.S. iii. 48, pl. iv. figs. 2 & 3; the colour of the latter is dark 
chestnut, whilst Z. Championi is dull black; it was taken by the 
late Major Champion at Hong Kong, but specimens have subse- 
quently keen received from the interior of China, collected by Mr. 
Fortune. 
Gen, Crapoanatuus, Burm. Handb. d. Ent. v. 364. 
Macrognathus, Hope, Cat. p. 5. 
Metopodontus, Id. p. 4. 
Prosopocoilus, Id. p. 4. 
This genus, to which Dr. Burmeister united Hexarthrius and 
Cyclophthalmus of Hope, includes a larger proportion of species 
than any other belonging to the Lucanoid Coleoptera, comprising 
nearly sixty in number; which, with the exception of a few from 
the eastern and western coasts of Africa, are all either from 
India and China, or the islands of the Indian Ocean. It includes 
also the sub-genera Metopodontus and Prosopocoilus of the same 
author, both established with reference to the number of spines 
upon the tibize as well as upon the bimucronated and excavated 
anterior part of the head. 
First, with regard to the tibial spines: these are often found 
to be most variable, and as generic characteristics are, I think, 
unworthy of the importance which has been attributed to them, 
especially as a rigid adherence to such a system necessitates the 
wide separation of species in all other respects intimately related. 
Secondly, with regard to the binodose or strongly excavated 
character of the anterior portion of the head: this formation is so 
entirely dependent upon the development of the individual, that 
it cannot be regarded even as a specific, much less a generic 
character. I have, therefore, deemed it advisable to unite both 
Metopodontus and Prosopocoilus with the genus Cladognathus of 
Dr. Burmeister, which must only be considered after all as a 
temporary refuge for a vast number of species, forming a peculiar 
group in this family, and sufficiently aberrant in form and 
character to justify perhaps their separation into several genera, 
but our present knowledge of the species is too limited to warrant 
more than a sectional arrangement. 
‘Ciapoewatuus pouitus ¢, Parry (¢ ignota). (Pl. X. fig. 5.) 
C. castaneo-fuscus, nitidus; mandibulis brevibus, curvatis, 
dentibus tribus armatis; capite supra oculos angulato ; 
