6 CORNUTED CETONIID&. 
it is of a golden green colour, the thorax being coppery green. 
Mr. MacLeay forms it and Dicranocephalus Wallichii into sub- 
sections, but I have no doubt that when its female is known, and 
the structure of the mouth investigated, each will be found to form 
a section of equal rank with the gigantic and Smithian Goliaths ; the 
metallic colour, size of the fore feet, form of the horns of the head, 
bidentate anterior tibize, and especially the very prominent porrected 
mesosternum of N. opalus, being its distinguishing external peculia- 
rities. In this case, it will be proper to restore to this insect the name 
of Narycius, which Mr. MacLeay has applied to a section of Coryphe, 
containing, as he supposes, Dupont’s second species N. olivaceus. 
With the view of facilitating the consideration of the preceding 
remarks, as well as other future ones, upon the relations of the 
Goliath-beetles, a sketch of the distribution of the Cetoniidee, given 
by Mr. Mac Leay in the work above referred to, will be a useful 
supplement to the present memoir. It will be scarcely needful to 
add that the quinarian distribution and parallelism, or analogy of 
groups, form the principal peculiarities of Mr. Mac Leay’s arrange- 
ment. The family Cetoniide is therefore divided into five genera, 
each of which contains five sub-genera, which analogically represent 
each other, thus :— 
II. Ceroninus. | III. Gymnetinus. | [V. Macrominus.| V. Crypropinus. 
Gen. I. Tricninus. 
Sub-GEN. 1. Osmoderma | Schizorhina . . Lomaptera ...| Oplostomus . .| Genuchus. 
2. Valgus ..|Coryphe .... | Agestrata.... Anoplocheilus . | Cyclidius. 
3. Trichius .| Goliathus .. .| Philistina . .. Diplognatha . . | Cremastocheilus. 
4. Campulipus | Ischnostoma .'. | Macronata . ..| Gnathocera. . . Cryptodus. 
5, Platygenia. | Cetonia ....j Gymnetis. . ..}| Macroma.... Cymophorus, 
(The Genera printed in italics are those by which the passage is made from one Genus to another. ) 
Goliathus, the third sub-genus of the genus Cetoninus, is arranged 
in the following manner :— 
Secr. I. Smithii, ML. 
Sus-Srcr. 1. 5 - G. torquatus. 
— 2. (Mecynorhina, Hope) . . . G. Polyphemus. 
—_ 3. (Dicronorhina, Hope) : - G. micans and G. splendens.* 
— 4. (Eudacilla, White) G. Smithii, Grallii, Daphnis, [and Morgani. | 
— °. : : : - : - G. 4-maculatus. 
Secr. 2. Hépfneri, M‘L. % 5 - . G. Hopfneri. 
Secr. 3. Gigantei, M‘L. . 5 - «+ G, Drurii, giganteus, regius, cacicus, and princeps. 
Secr. 4. Inca, Lep. and Serv. : - I. Ynea, aud four other South American species. 
Sect. 5. Dicronocephali [Dicranocephalus, Hope] 
Sus-Secr. 1. Unknown. 
— 2. [Dicranocephalus proper] . - G. Wallichii. 
_ 3. Unknown. 
_ 4. Unknown. 
_ 5. [Narycius, typ. verus] . - . G. opalus, Dup. 
The singular leafless plant figured is the H¥iginetia Indica. 
* Mr. Strahan’s specimen from Sierra Leone, mentioned by Mr. Mac Leay as another species 
of this section, is certainly nothing else than G. micans. 
