ON THE CETONIIDiE OF SOUTH AFRICA. 
39 
the marking of the elytra, wc find G. giganteus to agree with G. regius. The three species are very close 
to each other; but G. Drurii is so different from them all, as almost to form another sub-section of 
Gigantic Goliathi. 
Sp. (Cetoninus) Goliathus Princeps, Hope. 
Descr. Goliathus nigro-piceus, thorace vittato etc. (Vide Hopes Coleopterist’s Manual.) 
$ Incognitus. 
$ Clypeo simplice sub-quadrato antice subsinuato, maculis duabus verticalibus fere mediis 
ful vis. 
Goliathus princeps, Hope, Col. Man. p. 117. 
Long. corp. 3 inches. 
Note. Mr. Hope lias given a figure and an excellent detailed description of this insect, of which an 
unique female specimen exists in his collection. To his work I refer the reader for observations on the 
section, as well as on the species. Although it remains doubtful whether this be not the female of C. 
Cacicus , I am, for my part, inclined to believe Mr. Hope to be in the right when he considers it as the 
female of a new species. 
71. In concluding my remarks on this interesting section, 1 have to state that it corresponds 
exactly with the limits which Professor Klug, in the Appendix to Erman’s Voyage, above 
mentioned, has assigned to his genus Goliathus. Nevertheless, I consider the most typical 
Goliathi, in other words, those species of Goliathus, which are most distinct from all other 
species of their common genus Cetoninus, to be contained in the section Inca. Thus Inca is 
aberrant when we refer to the sub-genera of Cetoninus, but on the other hand it is typical 
when we are referring it to the sections of Goliathus. 
Section 4. Inca, Lcpell. et Scrville. 
72. This groupe has been most properly placed by MM. Latreille and Kirby, among the 
Goliathi of Lamarck. But MM. Gory and Percheron have more lately, with a singular 
taste for affinities, interposed between Inca and the other sections of Goliathus, not only the 
sub-genera Platygenia and Cremastocheilus, but I know not what besides. The section 
of Goliathus, called Inca by MM. Lepelletier and de Serville, has the back even more 
convex than that of any of the gigantic Goliathi; but it may easily be known from all 
the rest of the sub-genus by its proximity to the genus Trichinus. It is, in fact, the Trichinus 
form of the sub-genus Goliathus, and by it the genera Cetoninus and Trichinus meet so as to 
close that circle which constitutes the family of Cetoniidai. The section may be characterized 
by its labrum, which is almost lobate in the middle, by the subcircular convex thorax with 
denticulated margin, by the convex elytra, by the internal spine of the fore, femur, by the 
epimeron not being prominent between the thorax and elytra, and, finally, by the bicornuted 
clypeus of the male, although this last character is not to be considered by any means as 
peculiar to the groupe. Here it may be noticed with respect to the whole sub-genus 
Goliathus, that I consider the true clypeus of the groupe, that is, the clypeus of the female, 
which is nearly of the same form and construction throughout the various sections, to be in 
all essentially quadrate, having the anterior angles in general sharp, and the fore-margin 
rather concave. This general form of clypeus becomes horned in two ways. In the section 
of Gigantei, the trunk of the bifid horn proceeds from the middle of the emargination of 
the anterior margin of the clypeus, and what are called the lateral teeth, are merely the angles 
of the quadrate clypeus. In the section of Smithii, particularly in Goliathus Polyphemus, 
