OF THE EASTERN WORLD. 135 
have the horny blade more than one-third longer than the square membranous part ; the maxilla 
of the male has the inner lobe pointed at the tip (fig. 4 ¢), and the upper lobe horny, entire, and 
not very acutely pointed at the tip ; but in the female (4 g) the upper lobe is acutely bifid at the 
tip; the mentum is deeply cleft in the centre of the anterior margin. The mesosternal process is 
rather long, flat, and not very acute at the tip (fig. 4d and 4e); the abdomen of the male is 
deeply channeled down the middle beneath ; the elytra of the males are terminated by two 
strong spines at the suture. The fore tibia in the males are simple, but bidentate in the 
female (fig. 4) ; the intermediate tibie are also simple in the male, but slightly spurred 
beyond the middle in the female, whilst the hind tibize are spurred in that situation in both 
sexes. The pseudonychie are scarcely distinct. Some specimens have two small black spots 
on the pronotum in lieu of the large one, and the black spot near the base of the elytra almost 
divided in two by a longitudinal patch of green. 
Srecirs V.—Heterorhina decora (Plate 33, fig. 6). 
Cetonia decora, Mliger. Vers. Oliv. Ent. 2, p. 148; Schon. Syn. 1, 3, pag. 133. 
Cetonia 6-maculata, Fabricius Syst. El. 2,p. 149 5 Gory and Perchéron Mon, Cét. pl. 
19, fig. 3. 
Cetonia maculata, Gory and Perchéron op. cit. in text. 
This is another species closely allied to the preceding in the disposition of its colours, but 
which differs from both materially in the structure of the clypeus. In both sexes the anterior 
angles of the head are rounded off, the middle being produced into acone truncated, or rather, 
slightly emarginate at the tip (fig. 6a). The crown of the head has a short flat horn, 
which is truncated in the male, but rather conical at the tip in the females, The maxilla in 
the female (fig. 6 5) has the lower lobe terminated by a curved spine, whilst the upper lobe is 
curved and acutely bifid at the tip; the mesosternal process is long, narrow, obtuse, and rather 
bent upwards at the tip (fig. 6 c and 6d) ; the elytra are spined at the tips, especially in the 
males. The fore tibie of the males are entire, but bidentate in the females; the lower tooth 
minute. The hind tibie are slightly spurred below the middle. The tarsi in the female are 
short and broad. The spottings vary very considerably in size, being sometimes very small, 
as in a specimen in the collection of the Rev. F. W. Hope, in which those on the pronotum 
and near the suture are almost obsolete; and sometimes almost as large as in H. Mac Leaii, 
as in the magnificent specimen represented in the plate, collected in Java by Dr. Horsfield, 
and contained in the Museum of the East India House. 
Species VI.—Heterorhina amena (Plate 34, fig. 4, and details). 
Coryphe amena, Hope in Trans. Ent. Soc., Vol. 3, p. 64. 
This small Assamese species has the sides of the head rounded in both sexes; the middle 
of the front margin of the clypeus being rather deeply notched (fig. 4 @ 4 6), the upper sur- 
face of the head is strongly carinated, the carina terminating in a conical point in both sexes ; 
the mandibles have the horny blade long (fig. 4 ¢), the maxillee of both sexes (fig. 4 d) have 
both the lobes rather oblong at the tip. The mentum is cordate-truncate, with the anterior 
margin deeply notched (fig. 4 e)53 the fore tibize of the male are simple, but slightly bidentate 
in the female (fig. 4 h), the mesosternal process is elongate, narrowed, not very acute at the 
tip, which is rather bent upwards (fig. 4 f4 g), the hind tibia are not spurred beyond the 
middle. The male has the abdomen channeled down the middle beneath. 
Sprcirrs VII.—Heterorhina punctatissima, Westw. (Plate 34, fig. 5, and details). 
Coryphe jucunda, Hope in Trans. Ent. Soc., vol. 3, p. 64, nec. Germar in Allg. Liter. 
Zeit., Aug. 1837. 
This new species is about the size of H. decora, it is of a remarkably rich dark-green colour 
and very much punctured. The middle of the anterior margin of the clypeus is slightly 
produced and reflexed in both sexes (fig. 5a6 4, fig. 5¢ 9). In the male the crown of the 
head is bounded in front by a broad curved horn, rising but very little above the surface of 
the head (5 a), in the female, however, (5 c), this is much more developed, and the crown is 
moreover strongly keeled between the eyes, the keel terminating in a conical point. The 
maxille have the lower lobe terminating in a point (5 d 4), which is rather stronger in the 
female than in the male, and the upper lobe is acutely bifid, the lower tooth being the largest ; 
the mentum is elongated, rather narrowed towards the base, and with the front margin deeply 
notched in the middle; the mesosternal process is moderately long and rounded at the tip, 
which is scarecly turned upwards (fig. 55g). The fore tibiae of the males are entire but 
