106 Harris's remarks upon Scar abacus golial-us, fyc. 



Mr. Hope, in the little Manual before mentioned, proposes to 

 divide the Family Goliath-Ida, as he calls it, into two groups ; 

 the first including those genera in which the thorax is rounded, 

 and the second those in which it is trapezoidal, or broad behind 

 and narrowed before. In the former he places three genera, 

 Goliathus (Hegemon^), Dicronocephalus, and Incas ; in the latter, 

 Mecynorhina, Dicronorhina, Rhomborhina, Jumnos, and an un- 

 named genus, the type of which is a Mexican insect, the 

 Goliathus Hoepfncr of Gory and Percheron.* The genus Incas 

 or rather Inca of Lepeletier and Serville comes very near to 

 Trichius, is peculiar to South America, and contains some spe- 

 cies of large size and considerable rarity, but which cannot 

 compare, in these respects, with their African prototypes. Mr. 

 Hope does not inform us by whom or where the characters of 

 Dicronocephalus are defined, nor does he name the species upon 

 which the genus is founded ; but merely gives it as an East 

 Indian genus. I think it probable that the Goliathus Wellech 

 (Wallich ?), of Gory and Percheron,f may be the type ; and, 

 if this be the case, the East Indian genus Narycius of Dupont, 

 in Guerin's " Magasin de Zoologie," for 1835, pi. 128, will 

 probably have a place very near to it, in the first group of this 

 family. The characters of the first three genera in the second 

 group, with a trapezoidal thorax, are given by Mr. Hope in the 

 Manual. To Mecynorhina, the magnificent Scarabceus Torqua- 

 tus of Drury is probably to be referred, the male of which has 

 recently been described and figured, for the first time, by Mr. 

 Waterhouse, in Charlesworth's "Magazine of Natural His- 

 tory," New Series, Vol. II., page 635. Of this insect, which 

 is nearly three inches in length, or scarcely inferior in size to 

 the species of our genus Ifcgemon, and is also a native of the 

 western part of Africa, only two individuals are yet known ; 

 one, a female, with the clypeus unarmed, the original unique 

 specimen from Drury's cabinet, "is still in existence, and 

 graces the rich collection of Mr. Macleay ; " the other, a male, 

 with the clypeus produced into a long, pointed, recurved horn, 

 was lately obtained at Sierra Leone, by Lieut. Strachan, in 



* Monogr. des Cetoines, page 154, pi. 2G, fig. 2. 

 | Monogr. des Cctoiweg, page 154, pi. 2G, fig. 1. 



