244 Mr. J. O. Westwood’s Descriptions 
he female in my paper on this genus in “ Charlesworth’s Mag. 
of Nat. Hist.,” January, 1838, figs. ii. 5, and iii. 9. 
The space between the ocelli is considerably shorter than that 
between the ocelli and the eyes ; the promuscis extends to the base 
of the second pair of legs, it is slender and 4-jointed, the first and 
fourth joints the shortest, and the second and third longer, being 
nearly of equal length. 
The first, second, third and fourth ventral segments have a long 
impressed line on each side, terminating near the margin of the 
abdomen in a small dot, which might be mistaken for a spiracle, 
but the true spiracles are present and placed rather in advance of 
this dot and somewhat nearer to the median line of the body: 
the fifth segment, which is very much angulated in the middle, 
has also a short impressed line on each side, but this terminates in 
the true spiracle, whilst a little in advance of it is a much larger 
oval patch of short decumbent hairs. 
The legs are short and compressed, the tibiz are especially 
short, being scarcely longer than the tarsi. The insect is, how- 
ever, unable to fold up its feet in the same way as the Histeride 
as suggested by Mr. White, because there are no impressions on 
the under. surface of the body in which the four hind feet could 
be lodged. 
The insect is nearest allied to Plataspis coccinelloides and 
coracina, (to the first of which Messrs. Serville and Amyot 
restrict the name of Thyreocoris, giving the name of Heterocrates 
to the second,) in consequence of having the ocelli placed very 
close together. In comparison with these insects, and in respect 
to the characters which Messrs. Serville and Amyot have em- 
ployed for their genera, the present insect must be considered as 
a separate genus, and it is therefore proper to add that Mr. White 
has himself applied the subgeneric name of Ceratocoris to it in 
the Index of Addenda and Corrigenda at the end of the “ Ento- 
mologist.” 
Plate XVIII. fig. 1, the insect slightly magnified; 1a, the insect of the 
natural size seen sideways; 16, antenna; 1c, fore 
foot; 1 d, extremity of the abdomen seen from above ; 
te, underside of the abdomen. 
Plataspis (Aphanopneume) biloba. (Pl. XVII. fig. 2.) 
Supra obscure lutea, nitida, depressa, subparellela, undique nigro- 
suttulata, guttulis punctatis; spatio magno bilobo fulvescenti 
