PLATES XXIX AND XXX. 
ON THE GOLIATHIDEOUS CETONIIDZ OF ASIA, 
Paezt I. 
On reviewing the characters of the primary groups into which 
the great family Cetoniide is divisible, we soon find that the 
extraordinary horns with which the heads of the male Goliathi are 
armed ought to receive only a secondary consideration in determin- 
ing the limits of groups; other characters being found of greater 
importance. Hence it is that, after removing the Trichiides 
(which have the sides of the elytra straight), the Cremastocheilides 
(including Macroma, as Dr. Burmeister * satisfactorily shows, and 
distinguished by the curved horny blade of the mandibles, and the 
naked or nearly naked upper lobe of the maxille), and the 
Gymnetides (which have the pronotum produced backwards, and 
more or less covering the scutellum, we find the remaining groups 
much more closely approximating together. The Ischnostomides and 
some of the Cetoniides are distinguished however bythe membranous 
lobe ef the maxillze, whilst the remainder of the Cetoniides do not 
exhibit any striking external sexual distinctions. 
The species which still remain to be noticed are distinguished, 
therefore, from all the preceding by the following characters : 
The sexes are distinguished by the variation in the form of the 
clypeus, or of the feet, the upper lobe of the maxillz is corneous, the 
horny part of the mandibles forms a straight blade, the scutellum 
is not covered by a produced lobe of the hind part of the pronotum, 
and the sides of the elytra are deeply sinuated near the base. The 
insects thus characterised constitute the groups which have been 
called Goliathus, Gnathocera, G. and P. (Coryphe, M‘L.), and 
Schizorhina, together with several others, which are more properly 
referable to them. These groups appear to me to constitute two 
sections. 
Ist. The Gottarnmeous Cetonup#, in which the clypeus is not 
emarginate in both sexes, and is often cornuted. 
2nd. The Scuizoruinovs Cetonupz, in which the clypeus: is 
always deeply emarginate in both sexes, and is never cornuted. 
* Zeitschrift fiir die Entomologie, vol. 3, p. 275. (1841.) 
NO. VIII.—1st JULY, 1842. I 
