CETONIID^E OF AFRICA. 
169 
I do not consider it necessary to adopt these two divisions, the 
general characters of the two species being identical; the male of 
G. torquatus has, moreover, the sides of the head produced into a 
conical horn, which is analogous to the side horns of Polyphemus, 
and the bifid extremity of the middle horn in Polyphemus being, 
in my opinion, but a specific character. The second character 
employed by Dr. Burmeister, namely, the possession of a spine to 
the mando of the male Polyphemus (see Plate 44, fig. 3, drawn 
from a sketch sent me by Dr. Burmeister) would have been entitled 
to greater weight, were I not able to show similar instances of a 
difference in this respect existing between other species (E. G. 
Eudicella frontalis, Dicranorhina Burkei), whilst Dr. Burmeister's 
third character is certainly erroneous, as the females of both species 
agree in the toothing of the intermediate tibise. 
The two species at present composing the genus form an admi¬ 
rable link between the gigantic species and those which follow, 
agreeing with the former in the singular velvet-like coat in which 
they are superficially clothed, as well as in their large size. 
■Species I. — Mecynorlima Polyphemus , $ , Fabric!us, Ent. Svst. 1, 2, 125 ; Oliv. Ent. 
1, 6, 9, 3, T. 7 f. 61 ; Gory and Perch. PI. 25, fig. 1 ; Arc. Ent. PI. 19, fig. 1 d, and 
1 e ; — $ W'estw. Arc. Ent. p. 69, PI. 19, fig. 1, 1 a 9 1 b y 1 c. 
Species II .—Mecynorhina torquata (Plate 44, fig. 1, <£, 2 $) ; Drury Illust. Exot. Ent. 
3, Pi. 44, fig. 1, $; Herbst Nature. Kaf. 3, tab. 28, fig. 1 ; Waterhouse Mag. Nat. Hist. 
2d Scr. p. 636, and fig. $ 
Cetonia collaris , Schooherr, Syn. Ins. 1, 3, 117. 
It is to Joseph Hooker, Esq. (the son of Sir W. Hooker, the 
distinguished botanist), a most zealous Entomologist, whose at¬ 
tention had been particularly directed towards the Goliath beetles, 
and who is at present w 7 ith the Expedition engaged in exploring 
the South Seas, that I am indebted for my first acquaintance w 7 ith 
the male of this species, and which * is at present deposited at 
his father's residence at Kew, with his Entomological collection. 
The magnificent male here figured is contained in the cabinet of 
A. Melly, Esq., of Liverpool, to whom I beg to offer my best thanks 
for the kind reception afforded both to Dr. Burmeister and myself 
during the visit of the former in this country. This specimen 
exceeds in size any other I have yet seen, and has the frontal horn 
of the head proportionately more developed, with a double series 
of black rounded tubercles towards the tip. In addition to this 
and Mr. Strachan’s male specimen, a figure of which by the late 
* This is tlie specimen to which Mr. MacLcay alludes as being probably a second individual 
of G. Polyphemus. 
