ON THE CETONIIDJE OF SOUTH AFRICA. 
27 
with it, of which the inner one is curved, falciform, exceedingly acute, and nearly as long as the 
whole tarsus. 
54. As none of the above five sub-genera are found at the Cape — nor indeed in Africa — I 
have no occasion to say more of them, than that all, except Philistina and Agestrata, have the 
external process of the maxillae membranaceous. Yet I have never seen the American species 
of Gymnetis on flowers, but invariably have found them by beating the leaves of trees, out of 
which they fall on the ground, as if dead, not moving a limb. I suspect that the other 
sub-genera, from their superior brilliancy of colour, are more fond of flowers than Gymnetis. 
55. From Lomaptera, the metropolis of which is New Guinea, and which has its clypeus 
deeply bifid, we pass possibly by one of the sections unknown, to the New Holland groupe 
Schizorhina, which also has the clypeus forked. But Schizorhina is a sub-genus of the 
Genus V. CETONINUS, Mihi. 
The thorax of Cetoninus is never lobed behind, but rather emarginate. The mandibles are 
membranaceous, and the maxillae scarcely ever armed with corneous teeth, but merely furnished 
with a pencil of hairs. The females always have the anterior tibiae externally dentated ; and 
both sexes almost always have the epimcron prominent between the angles of thorax and elytra. 
The species of this genus are found in all quarters of the globe, but particularly m Africa. In 
America they are comparatively rare, the sub-genus Gymnetis of the preceding genus 
Gymnetinus assuming their place there in the economy of nature. The following aie the 
B. — Males having the an- r 
terior tibiae without ^ 
teeth, except where^ 2 
the insects are ex- 
tremely close to the 3 
normal groupe. 
A. — Males having the ante- 
rior tibise externally 
dentated. 
{* 
l 5 
Schizorhina, K. 
Coryphe, G. P. 
Goliathus, Lam. 
ISCHNOSTOMA, G. P. 
Cetonia, G. P. 
f Clypeus emarginate in both sexes. Mentum somewhat 
1 emarginate. 
Clypeus not emarginate. Mentum not emarginate. 
Clypeus of males horned. Mentum deeply emarginate. 
Mentum not sub-quadrate, but generally convex in front. 
Mentum sub-quadrate, and almost emarginate in front. 
56. They who study natural history philosophically, must have observed with Flies how 
strongly marked are those analogies which exist between the corresponding points of the two 
parallel divisions of a normal groupe. Here the genera Cetoninus and Gymnetinus form the 
normal groupe of the family of Cetoniidce, and the analogies between their sub-genera are as 
follow : — 
1 Lomaptera. 
2 Agestrata. 
3 Philistina. 
4 Macronota. 
5 Gymnetis. 
Clypeus cleft in both sexes. 
Males with unarmed anterior tibias. 
Males with a horned clypeus. 
Thorax narrower than elytra ; feet long. 
Body depressed ; feet short. 
1. Schizorhina. 
2 Coryphe. 
3 Goliathus. 
4 ISCHNOSTOMA. 
5 Cetonia. 
Ao-ain the Sub-genera of Cetoninus represents the five Genera of the Family, thus : 
Schizorhina by its cleft clypeus represents Lomaptera of Gymnetinus. 
Coryphe is a part of and the very perfection of Cetoninus. 
Goliathus by the epimeron of the Inca represents Trichinus. 
Ischnostoma by the convex mentum of the Ccelocephala Cryptodinus. 
Cetonia in exterior form agrees peculiarly with Macrominus. 
Note. Thus we learn that although Cetonia be a normal sub-genus of Cetoninus , it does not repre- 
E 2 
