184 GOLIATHIDEOUS CETONIIDZ 
respecting the unity of these groups, has been more strongly con- 
firmed by the examination of the new species represented in 
plate xlv., figs. 4 and 5, which present another diversity in the 
wmature of the head, accompanied by an equally marked differ- 
mee in the maxille and fore tibie, which would render it as 
unnatural to unite them into a genus with Diceros bicornis as it is 
to unite Heterorhina dives (Gn. MacLeay, G. and P.) with them ; 
the general habit of the last-named species agreeing with that of 
the true Cetonia MacLeaii, of Kirby. 
The following are the African species of this group :— 
Specirs 1.—Heterorhina Africana, Drury (Scar. Afr.) Fabricius, Olivier, Gory and 
Perchéron, pl. 19, fig. 6. 
Syn.— Scarab. erugineus, Voet. 
?—Scarab. pyropus, Voet.) Au Syn. Het. lete ? 
Spxcrrs I].—Heterorhina viridi-cyanea, Pal. Beauv. Ins. pl. 5, fig. 5. Gory and Perch. 
pl. 21, fig. 2. 
Syvn.— Cet. Stigma, Pal. Beauv. pl. 5, fig. 4 (variety). 
Note.—The Rev. F. W. Hope informs me that the insect represented in my plate 35, 
fig. 4, p. 158, is a native of Africa, in which case I apprehend it, like C. stigma, is a variety 
of this species. Messrs. Gory and Perchéron have confused the two African and Indian allied 
species under the name of Gnathocera elegans. 
Sprecirs I1I.— Heterorhina monoceros, Gory and Perch. Mon. Cet. pl. 21, fig. 3. Burm. 
Handb. 3, p. 232. 
Species 1V.—Helerorhina suturalis, Fabricius, Olivier, Gory and Perch. Mon. pl. 21, 
fig. 6. 
The original specimen of this species described by Fabricius, is in 
the Banksian Cabinet, being a female. It has the fore tibiz rather 
more strongly bidentate than the male. A male insect of this species 
is contained in the cabinet of the British Museum, marked as a new 
species. Having compared the drawing of it (which I made with 
the view of figuring it in this work) with the original Banksian 
specimen, I find them specifically identical. 
Species V.—Heterorhina Algoensis, Melly’s MSS. (Plate 45, fig. 4.) Luteo-fulva, pronoti 
maculis duabus, alterisque duabus minoribus humeralibus nigris, elytris flavis, abdomineque 
nigro, hujus apice rufo ; capite ¢ bicornuto. ¢ Q. Long. corp. lin. 9—10. 
Inhabits the south-eastern part of Africa. In the collection of A. Melly, Esq. 
The head of the male (Pl. 45, fig. 4 a,) has the anterior angles of the clypeus produced into 
two long porrected, nearly straight, horns, with the apex obliquely truncated, the inside of each 
being rather concave and hairy. The disc of the head is also armed with a short triangular 
deflexed spine ; the head, pronotum, scutellum, suture of the elytra, epimera, posterior coxe, 
femora, tibie, podex, sternal spine, and centre of the metasternum, are fulyous red and very 
shining. The tips of the horns of the head, the eyes, club of the antennz, patches on the 
pronotum, aud humeral spots, black ; the tarsi pitchy ; the sides of the metasternum strongly 
punctured; the abdomen black and shining, with the apex red. The elytra are very slightly 
punctate-striate. The maxille in this sex (fig. 45) are bidentate, both being alike; the mentum 
is emarginate in front (fig. 4c). The anterior tibie have the slightest possible indication of a 
tooth on the outside, towards the apex, which is very acute, the four posterior tibie are 
furnished with a spine in the middle ; the unguicule are minute but distinct ; the sternal process 
is long, narrow, straight, and deflexed (fig. 4d, 4¢). The female differs, in having the head 
