OF THE EASTERN WORLD. 139 
Sprcirs XIV.— Heterorhina olivacea (plate 35, fig. 7, and details). 
Gnathocera olivacea, Guérin, in Rév. Zool. 1840, p. 80. 
Gnathocera Surrya, Hope MS. 
This species scarcely differs from the preceding in its structural details. All the specimens, 
however, which I have seen, agree in their deep olivaceous colour, and in the thick 
tuft of hairs at the tip of the hind tibie. The elytra are also more attenuated behind than in 
any individuals of H. elegans which I have seen. The exposed part of the metacoxz is of a 
dark red-brown colour. The head is alike in both sexes (fig. 7a, 7 6); the maxillex have the 
lower lobe horny, curved, and acute, in both sexes (fig. 7c) ; and the upper lobe is broad, 
short, and obliquely truncate, so as almost to appear bidentate. This form occurs both in 
males and females; but I have found the upper lobe much narrower and entire in some 
specimens. The abdomen of the male has only the two basal segments longitudinally chan- 
ueled beneath; the mesosternal process is long and curved upwards at the tip. 
Species XV.—Heterorhina bimacula, Wied. Zool. Mag. Band. 2, st. 1, p. 85. 
Coryphe Wiedemanni, Mac Leay, Cet. So. Afr. p. 30. 
This species comes very close to the following, with which it is regarded as identical by 
Messrs. Gory and Perchéron ; but, as Wiedemann expressly says of the yellow marking on 
each elytron, that it “ein wenig vor der Mitte steht ;’? and that it “am vorder-und hinter- 
rande ein wenig zackig ist;” and, moreover, describes the pygidium as being ‘‘ein wenig 
réthlich,” Iconsider his description as inapplicable to the following. He gives Bengal as the 
a3 
habitat of his insect, which he says is 7 to 7% lines long. 
Species X VI.—Heterorhina confusa, Westw., (plate 36, fig. 2, and details.) 
Gnathocera bimaculata, Gory and Perchéron, Mon. Cét.,pl. 22, fig. 3 (excl. Syn. Wied.) 
Gory and Perchéron give Java as the habitat of this insect, figured by them from the 
collection of Dejean. The only specimens I have seen were collected in Central India by 
Colonel Hearsey. The front of the head (fig 2 @) is subquadrate and entire in both sexes, 
with an elevated margin; along its middle runs a slightly elevated space, dilated in front; both 
the maxilla have the upper lobe bifid in the male; but in the female one of them is entire 
and rather obtusely pointed, whilst the other is obliquely truncate (fig. 2 6,2); the meso- 
sternal process is porrected and bent towards the body ; the anterior tibiz: of the males (fig. 2 e) 
are sub-bidentate at the tip, but more acutely so and broader in the female (fig. 2 f) 5 the 
yellow patch on each elytron occupies the middle, terminating at about one third of the length 
of the elytron from the extremity ; the terminal segment of the body, both above and beneath, 
is bright fulvous red. The abdomen of the male is channeled longitudinally on the 
under side. 
Species XVII.— Heterorhina Cuvera (Plate 36, fig. 1 and details). 
Dicheros Cuvera, Hope, MSS., Newman, Ent. Mag. 5, 384. 
This species varies from 6 to 8 lines long; it is closely allied to the preceding species, but 
differs in its narrower form as well as in the much greater extent of the spots on the elytra. 
The front of the head (fig. 1 @) is similar in its construction to that of H. confusa. The 
maxillz (fig. 1 4) have the lower lobe curved and acute in both sexes. Ina male dissected I 
found the upper lobe of one maxilla acute and entire, whilst in the other maxilla it was bifid 
(fig. 1c}, whilst in the female both maxille have the upper lobe bifid. The mentum (fig. 1 d) 
is oblong, with the front margin emarginate ; the mesosternal process is elongate, rather obtuse 
at the tip, which is bent upwards (fig. 1 e); the abdomen of the male is deeply channeled 
beneath ; the male has the fore tibie sub-bidentate at the tip (fig. 1g), whilst in the female 
they are broader and more acutely and distinctly bidentate (fig. 1h), The hind tibiw are 
simple in both sexes. I have seen many specimens in which the yellow patch is discoloured, 
and has assumed a dark brownish red colour. It is from Bombay. 
Species XVIII.— Heterorhina Childrenii (Plate 36, fig. 3 and details). H. nigra nitida, 
clypeo tuberculo elevato instructo; pronoto rufo-plagiato; elytrisque macula magna 
flava ; scutelloque rufo. Long. corp. lin. 7, lat. ad basin elytr. fere lin. 3. 
The only specimen I have seen of this species is in the collection of the Buitish Museum, 
where it has long stood undescribed, having the name attached to it which I have adopted 
