32 Major Parry’s Catalogue 
the Rev. F. W. Hope nor Dr. Burmeister was acquainted with the 
veritable male of Erichson’s species, which is now described for 
the first time, and which differs essentially from C. cavifrons (var. 
max.), Hope, by its broader and more convex form, the highly 
polished dorsal patch on the elytra, and in the structure of the 
mandibles, which in the insect now under consideration are some- 
what broader, strongly curved at the apex, destitute of the flat 
basal tooth, and instead of the group of subapical teeth only, as 
in C. cavifrons, are armed with a stout tooth placed a little above 
their centre, with four or five smaller ones between it and the 
apical tip; some of these teeth, however, may be more properly 
called nodose elevations. ‘The anterior tibize moreover are straight, 
and not curved as in C., cavifrons. 
The female is equally to be distinguished from that of C. cavi- 
frons by its more robust and convex form ; the anterior tibize are 
considerably more dilated, their outer edge also strongly denti- 
culated ; the four posterior tibia, like all the females of this genus 
(with the exception of C. cavifrons), are armed with a single 
spine, 
CLADOGNATHUS CAVIFRONS, Hope. 
$ Lucanus cavifrons, Hope, Cat. p. 13 (var. max.). 
g L. tenuipes, Id. Cat. p. 18. 
Odontolabis tenuipes, Id. Cat. p. 5. 
The only two specimens of ZL. tenuipes, Hope, with which I am 
acquainted are in the Hopeian Collection and the British Museum, 
and were obtained by Mr. Cuming during his visit to the Philip- 
pines ; after careful examination, I have satisfied myself, from the 
general sculpture of the head and the short strongly-punctate 
mandibles, that both these specimens are females; but from the 
remarkable slenderness of the anterior tibiae, and from the absence 
of spines on those of the four posterior legs, they have somewhat 
the appearance of males with short undeveloped mandibles. The 
specimen described by Mr. Hope is somewhat darker than that of 
the British Museum, assimilating more in colour with the male, 
which is chestnut-brown. While, on the one hand, the unarmed 
tibize of the four posterior legs would assign tenwipes to the genus 
Odontolabis, in which Mr. Hope placed it, its slender fore tibiz 
and general structure of body place it indubitably with those in- 
sects which belong to the genus Cladognathus, and I am strongly 
inclined to believe that it is the ¢ of C. cavifrons. 
