18G7.J 
In spherical, fruity galls, of the size of a hazel nut, resembling 
apples, or even apricots, in miniature, attached to the under side of oak 
leaves. Those collected by me at Birch Wood in autumn produced 
each a single ? in the following January, having been kept in doors. 
The period of their natural exclusion is probably March. In February 
I obtained Decatoma higuttata, Swed. {Codperi, Curt.) from the same 
galls. They are also parasitically infested by a Synerf/us {Cynips 
pallidicornis, Curt., B. E.,688), and Callimome inconstans, Walk., which 
is perhaps the same as that described by Curt., B. E., 552. 
Gynips Ugnicola, Hart. 
Ferruginous, entirely sericeous except the upper part of the abdo- 
men, which is shining and blackish. Metathorax black. Wings 
hyaline, with a reddish tinge ; areolet and base of the radial cell not 
incrassated into a dark spot as in the preceding. $ . 
Long. 2^ ; alar. exp. 7 lin. 
C. lignicola, Hart., Germ. Zeits., 2, p. 207; 4, p. 402, 1842-43. 
C. Kollari, Giraud, Yerhandl. Zool. Bot. Gesellsch., Wien, 
1859, t. 9, pp. 337-374. 
The hard, spherical, woody, monothalamous galls of this species are 
well known ; they are attached to the twigs of the oak, and are largest 
and most abundant in the South of England. The insect is the largest 
of the British Gynipidce. I once found them hatching in great numbers 
in September, in Jordan's Wood, Kent. The Linnean G. qnercus- 
petioli is a Synergus, parasitic on this species. For further information 
see Parfitt, Zoologist, 1856, vol. 14, p. 5074-76 ; Stainton, Trans. Eut. 
Soc, ser. 2, 1855, vol. 3, Proc. p. 76, and Zoologist, 1855, vol. 13, p. 
4747 ; also Zoologist, vol. 13, p. 4566, and vol. 19, p. 7330. A species 
of Decatoma and Gallimome Devoniensis, Parfitt, are parasites of this 
species. A fig. of the gall and insect has been given by Prof. Westwood 
in his Essay on British Ink Galls in the Gardener's Chronicle. 
Gynips radio is, Fab. 
Resembles G. lignicola, but is smaller. Ferruginous, antennae 
except at the base, a frontal spot, sides of the mesothorax, metathorax, 
a dorsal spot on the abdomen, base of the coxjb, and the hinder 
tibiae, black. Eadial cell shorter than in lignicola, its basal nerve 
incrassated. ? . Long. If ; alar. exp. 6 lin. 
G. radicis. Hart., Germ. Zeits., 3, p. 335 (C. fecundatrix, 
Hart., ibid., 2, p. 189, diagnosis only). 
In polythalamous woody galls at the roots of oaks, two inches in 
diameter, each producing a great number of the insect. It has two 
Cynipideous parasites, one a species of Rhodites, the other vxnknown ; 
also Gallimome cynipidis : see Walker, Zoologist, vol. 19, p. 7330. 
