118 
ASIATIC CETONIIDAi. 
the simple tibiae of the males of these insects at once distinguish 
them from the last-mentioned group. The antennae do not materially 
differ in the sexes ; the inner lobe of the maxillae of the female of 
Rh. opalina (pi. 30, fig. 5 a), is armed with a strong horny hook, 
which is much less strong in the males (Rh. hyacinthina e. q.). 
The mentum is deeply cleft in front, its hind part being rather 
broader than the front (pi. 30, fig. 5 b). The club of the antennae 
does not vary in size in the opposite sexes, and the mesosternal pro¬ 
cess is generally porrected, broad, and blunt, but it differs in shape 
in the different species. The fore tibiae of the females are bidentate; 
the hind tibiae in the same individuals are much more strongly 
spurred beyond the middle than in the males. The following are 
the species of this genus :— 
Species I.— Rhomborhina resplendens. Rh. 11 aureo-viridis nitidissima, versicolor, elytris 
subtilissime seriato-punctatis; basi, limbo scutellari, sutura tarsisque nigro-violaceis. , ' 
Schon. 
Syn. — Cetonia resplendens, Swartz, in Sch. Syn. Ins. vol. i. part 3,app. p. 51, (1817.) 
Golialhas Heros , Latreille, Gory, and Percheron, Mon. Cet. pi. 26, fig. 3. 
Obs. —The abdomen of the male is not longitudinally impiessed beneath, and the fore tibia) 
have a vestige of a tooth below the apex on the outside. 
Species II .—Rhomborhina Mellii , Gory and Percheron, Mon. Cet. pi. 26, fig. 4. 
Species HI.— Rhomborhina distincta , Hope, in Trans. Ent. Soc. Lond. vol. iii., p. 63. 
Obs, .—This species was described from a specimen sent from Assam, which appears to me to 
be specifically identical with Rh. Mellii. 
Species IV.— Rhomborhina opalina. 
Syn.— Cetonia opalina, Hope, in Syn. Nepal. Col. p. 24, Gorv and Percheron, Mon. Cet 
pi. 26, fig. 5. (Goliathus op.) 
Obs.—' The male is narrower than the female. The scutellum is sometimes only dark- 
coloured at the apex; the hairs of the four posterior tibiae and abdomen are fulvous, and the 
mesostcrnum is porrected and broad in front, almost as in Rh. hyacinthina (pi. 30, fi.r. 1 a ) u 
Captain Parry has received it both from Nepaul and the Himalayas. * 
Species V.— Rhomborhina apicalis , Westw. (Plate 30, fig. 2.) Lsete cupreo-fulva, elytris 
apice scabns et nigris, tibiis tarsisque nigris et nigro-setosis, thorace subtus nigro, abdomine- 
que cum femoribus a?neo. Long. corp. lin. 15. 
Habitat in Nepalia, D. Hardwicke ; et Assam ? 
In Mus. Soc. Linn. Loud, et Soc. Merc. Ind. Orient. 
Obs. The ciypeus is alike in both sexes—large and rounded in front. The sides of the 
pronotum and the.disc of the elytra are finely punctured, some of the punctures on the latter 
fornimg irregular lines. The apex and sides of the abdominal segments are clothed with short 
black hairs. The fore tibia; of the females are not so strongly spurred as in some of the species 
There is an impression on each elytra beyond the middle; the mesosternum is very broad and 
[mpressed" 1 ( 2 Th ° male haS the abdoraen broadly but very shallowly 
Species XI.—Rhomborhina Japonica. (Plate 30, fig. 4.) Hope, in Trans. Ent Soc 
Lond., vol. iii. p. 64. In Mus. D. Hope et Dupont. 
Obs. The short broad form of this species together with its large-sized head distinguishes it 
from the rest of the genus. The hairs on the hind tibiae and abdomen are short aud° fulvous 
The scutellum is concolorous with the pronotum and elytra, the mesosternal process is of 
moderate size, nearly as long as broad, rounded, and slightly dilated in front (pi. 30 fi- 4 a 
and 4 b, the former figure, representing the apical portion, scarcely elongate enoiHi). The fore 
tibiae of the females are very broad and strongly bidentate. 
