82 Famity—CETONIIDE. Sus-FamitLy—CREMASTOCHEILIDES. 
Genus—PLATYRHOPALUS. Westw. 
Species 1 (21)—PLATYRHOPALUS VEXILLIFER. Westw. 
Pratt XVII, Fra. 4. 
Subdepressus, piceus, nitidus, vertice profunde impresso ; antennarum clava lata minus depressa, apice angu- 
lata cum seta terminali, postice dentibus duobus validis, conicis setosis, denticuloque subbasali armata; angulis 
posticis capitis prominentibus; prothorace brevi, subbipartito, parte antica lateribus dilatatis, angulis anticis 
rotundatis, posticis recurvis et acutis, parte postica multo angustiori lateribus fere rectis; elytris latis, humeris 
porrectis rotundatis et intus subemarginatis; pedibus longis; tibiis, ante apicem, externe in spinam acutam 
productis ; corpore infra piceo-fulvo, nitido, parce punctato. 
Long. corp. lin. 4. 
Habitat; Penang. In Mus. Saunders. 
Although closely allied to PZ. aplustrifer Westw. (Linn. Trans. xvi. p. 664, pl. XX XIII, fig. 51; Arcana 
Ent. pl. LXXXVIII, fig. 3), the present insect has the body and antenne less depressed; the head has an oval 
depression between the front of the eyes; the shape of the clava of the antennz differs somewhat from that of 
Pl. aplustrifer, as can be best seen by comparing the coloured figure with the outline of the clava of Pl. aplus- 
trifer (fig. 4). The middle femora have a remarkable character on their inner surface, consisting of a group of 
about twelve small raised ridges arranged in a radiating manner (fig. 4 a). 
Sprcrrs 2 (22)—PLATYRHOPALUS MELLII. Westw. 
(Trans. Linn. Soc. xvi. p. 685; Arcana Ent. pl. LXXXVIII, fig. 2; Guérin-Mén., Icon. R. Anim. Ins. pl. XL, fig. 11.) 
Pirate XVIII, Fies. 2 and 3. 
The outlines here given represent the basal joint (fig. 2.2), and the clava of the antenne (2 4), of this species, 
and the prothorax, seen from above (2¢). In the second of these figures the margin is slightly trisinuated 
near its outer extremity, the lobes of the sinuated portion being clothed with short hairs; the basal joint of the 
antennz is rather wide at its extremity, and the prothorax has the dilated portion of its lateral margins slightly 
angulated, and the narrowed basal portion distinct. Certain individuals, however, have the clava of the antennz 
entire along the outer margin, the whole margin being slightly setose (fig. 8a); the basal joint of the antennz 
is narrower, and consequently more acute at the tip, and the prothorax has the lateral margins less angulated, 
and the basal portion not distinet (fig. 34); the middle and hind tibie have the outer apical angle acute, and 
extended backwards. In all other respects the specimens appear identical with the ordinary type of the species. 
It is possible these may be sexual distinctions ; if not, they must be regarded as specifie distinctions (although of 
a light character), and the name of Platyrhopalus Pietetii may be assigned to these individuals. 
Grnus—PAUSSUS. Linneus. 
(Westw. Arcana Ent. ii. plates LXXXIX-XCTIV.) 
The species of this genus (of which a large number are represented in the plates of the Arcana Entomologica 
above referred to) may, for convenience, be arranged in the following manner :— 
Section A. Prothorax quasi bipartitus. 
a. Antennarum clava postice haud excavata. 
b. Antennarum clava postice excavata. 
* Species Asiatice. 
** Species Africanz. 
Section B. Prothorax subcontinuus. 
a. Species Africance. 
b. Species Asiaticee, 
