134 ON THE GOLIATHIDEOUS CETONIIDA 
the mentum (fig. 8c), which is deeply emarginate. The femora are peculiarly coloured, being 
of a fine golden, fulvous, or opaline colour, with the inner edge of each shining green 
or blue. 
The colour of the species varies very considerably, the upper surface varying from golden- 
green to blue, slightly tinged with green, with the elytra rich lilac-purple, with a dark suture. 
Such individuals (one of which is figured in plate 30, fig. 7, from the collection of F. Parry, 
Esq.), I believe, constitute the so-called species Cetonia mutabilis, Hope (Syn., Nep. Col. 
supr. cit.), but they are structurally identical with the type of the species, except that the 
conical front of the clypeus is not so regularly truncate. 
Inhabits Nepaul and other parts of India. 
Specizs 11.—Heterorhina Hopei (Plate 33, fig. 3, and details). 
Gnathoceru Hope, Gory and Perchéron, Mon. Cét. pl. 20, f. 4. 
This species has very much of the habit of the preceding, but differs from it in several 
important characters :—thus, the clypeus is entire and quadrate, with the lateral and front 
margin slightly elevated, and the crown of the head scarcely elevated in the middle. The 
antenne have a club of moderate length, The fore tibie are simple, whence I conclude the 
specimens examined to be males, although the abdomen is not channeled beneath, The 
maxillz (fig. 3 a) are rather short, with the inner lobe terminated by an acute, curved, horny 
point, and the upper lobe also curved and terminated by two sharp horny points ; the mentum 
is rather deeply notched \in the middle of the front margin. The mesosternal process is very 
short and obtuse (fig. 36, 3c). The hind tibie are distinctly spurred below the middle, and 
the plantule and pseudonychie are very distinct. 
The species varies very much in colour; some specimens in the collection of Nepalese 
insects presented to the Linnzan Society by General Hardwicke, being of a blue or purple 
tinge. The one now figured, from the collection of W. W. Saunders, Esq., is of an intense 
fiery copper, tinged according to the play of light with golden green. 
Species I1].—Hetororhina dives, Westw. (Plate 33, fig. 5 a, b, c, d, e, f.) 
Gnathocera Mac Leay, Gory and Perchéron, Mon. Cét. pl. 19, fig. 2 (mec. Cet. Mac 
Leaii, Kirby). 
Coryphe pretiosa, Mac Leay Cet. So. Afr. p. 29 (nec Cetonia pretiosa Esch.) 
The only specimen I have seen of this magnificent insect was in the museum of the Jardin 
des Plantes, where I found it arranged with the true Cet. Mac Leaii, with which it has also 
been confounded by Gory and Perchéron, whilst Mr. Mac Leay (from confiding in their Mono- 
graphie) has mistaken it for the C. pretiosa of Eschscholtz. As it is from this specimen that 
my figures were drawn, I did not venture to extract the trophi. The head of the male has 
the sides produced into two long porrected, nearly straight horns, the tips being incurved (fig. 
5 a, head from above, 5 0, the same from the front, 5c, the same sideways) ; the front of the 
elypeus is deflexed and broad (5 4); the crown of the head is furnished with a very broad, 
short plate; the mesosternal process is long, narrowed, rather obtuse at the tip, which is 
slightly bent upwards (fig. 5¢ and 5 f) 3 the fore tibie (5d) are short and toothless, the 
hind ones have the rudiment of a spur below the middle; the pseudonychie are scarcely dis- 
tinct, and the elytra have the tips strongly spined at the suture. As this species is well 
figured in the Monographie des Cétoines, I have not thought it necessary to refigure it. 
Specirs 1V.—Heterorhina Mac Leaii (plate 33, fig. 4, and details). 
Cetonia Mac Leaii, Kirby in Trans. Linn. Soc., vol. 12, p. 408, pl. 21, fig. 11 (nec. 
Gory and Perch), 
Cetoninus ( Coryphe Naricia § 2) Mac Leati, Mac Leay, Cet. So. Afr. 
Cetonia pretiosa, Esch. Entom. p. 23, No. 9, 1822 (nec. Coryphe pretiosa, Mac 
Leay). : 
Tt is at once evident, from Eschscholtz’s character “ capite spina incumbenti, clypeo reflexo 
bidentato,” given of his C. pretiosa, that it is identical with Mr. Kirby’s insect. This lovely 
species has been recently brought from the Philippine Islands, by Mr. Cuming, in considerable 
numbers ;asit is not, however, figured in Gory and Perchéron’s Monograph, I have introduced 
it in the present work, and proceed to point out the characters of the sexes. The male has 
the clypeus more strongly bifid in front than the female, and the flattened horn on the crown 
of the head in the former sex is much more acute than in the female, which has it obtusely 
rounded, or but slightly pointed (4 a, 4 6, head of male, 4f, head of female.) The mandibles 
