168 ON THE GOLIATHIDEOUS 
has not been previously observed. In the African species, the 
anterior portion, or the apex of the mesosternal process, forms only 
the narrowed point at the extremity of the metasternal lobe, 
whereas in the Asiatic species the mesosternal portion is broader 
than the metasternal base of which it forms the apex, so that the 
process is generally clavate. (Compare, for example, Plate 30, fig. 
la, with Plate 19, fig. 1 c). 
In the Asiatic species, as will be seen from the short table given 
in page 132, and page 117, Jumnos takes the lead, with its long fore 
legs in the males which have the tibiee internally serrated, in which 
respect we find it to agree, analogically, with the leading species of 
this section found in Africa, although differing materially in the 
structure of the clypeus, destitute of horns in the male, and the 
externally bidentate fore tibize of the males. 
MECYNORHINA, Hope (Col. Man. 1. pp. 60, 119). 
As at first proposed by Mr. Hope this group was intended to 
comprise G. micans, Daphnis, Grallii, &c. as well as its type 
Polyphemus. In the appendix, however, to the first part of his 
Coleopterist’s Manual, he restricted it to G. Polyphemus, no 
description of the male of G. torquatus, nor even of the female of 
Polyphemus, having at that time been published. The characters 
assigned in p. 119 are “ § Tibize anticze dentibus utrinque armate ; 
tibiz intermediz dente parvo medio armatze,” which are not appli- 
cable to the female. 
Both Mr. MacLeay and Dr. Burmeister have divided the genus 
into two sub-sections. Those of Mr. MacLeay being thus 
characterized :-— 
1. ¢ Clypeus with @ single porrected horn. G. torquatus, Drury. 
2. & Clypeus with three horns, the middle one diverging or bifid at the apex. G. Poly- 
phemus, Fab. 
Whilst Dr. Burmeister proposes (contrary to Mr. Hope’s inten- 
tion) to restrict the name of, 
Mecynorhina, to G. torquata (the male having only a single horn 
to the elypeus, and the mando of the maxillz destitute of a tooth, 
which exists in the female, and the female with only one spine in 
the middle of the intermediate tibiee; and to give the name of, 
Chelorrhina, to G. Polyphemus, with the character :—Head with 
a strong frontal horn, bifid at tip, and two moderately long lateral 
horns. Both sexes with a spine at the extremity of the mando, 
and the female with two spines in the middle of the intermediate 
tibiee. 
