Foma Sodomitica. 
17 
gall rising upwards on each side, and bending inwards so as to 
clasp the extremity of the twig somewhat like a pair of wide and 
curved nippers. I cannot agree with Mr. Lambert in regarding 
these galls as identical with those of commerce ; the latter, as is 
well known, are not larger than a marble, and the interior is so 
hard that it can scarcely be cut with a pen-knife ; the exterior, on 
the other hand, is of a dull and pale whitish brown colour. In this 
opinion, I am confirmed by J. F. Royle, Esq., Professor of Materia 
Medica in the King’s College, London. In other respects, as in 
shape and protuberances, and in the circumstance of sheltering but 
a single inhabitant, &c. the two species of galls resemble each other. 
Amongst Mr. Lambert’s specimens of the galls, a true gall fly, 
belonging to the genus Cynips or Diplolepis, as Olivier misnamed 
it, was found, of which a figure was introduced into his original 
drawing, but this figure has not been published in Mr. Lambert’s 
memoir. I have, however, been kindly permitted to introduce a 
copy of it into this memoir, but regret that I am unable to give a 
detailed description of it, or to institute a comparison between it 
and the Cynips Gallce tinctorice* or the Cynips of the gall of com- 
merce ; from which, however, it must evidently be specifically dis- 
tinct, and consequently require a new specific name. I am ena- 
bled, however, to add a description of an Ichneumonideous insect 
which inhabits these galls, and which I have no hesitation in con- 
sidering as parasitic upon the Cynips of the Dead-Sea or Mad apple. 
Family Ichneumonid^e. 
Sub-Family Ichneumonides. 
Genus Pimpla. 
(Sub-Genus Ephialtes, Grav.) 
Species Eph. Sodomiticus, Westw. 
E. niger, segmento 2do latitudine longiori, reliquis brevioribus ; 
pedibus rufis, tibiis et tarsis posticis obscurioribus ; oviductu 
corpore dimidio longiori. 
Longitudino corporis lin. 5, ovid. lin. 8. 
Habitat parasitice in gallis vulgo “ Poma Sodomitica ” dictis. 
In Musaeo Soc. Ent. Londin. 
Statura et summa affinitas Eph. tuberculati, messoris et mani- 
* It is quite evident from Olivier’s subsequent description of Cynips Gallte tincto- 
ri«, (Encycl. M6th., vi.281, C.scriptorum, Kirby and Spence, Intr. i.319,) that he 
had confounded together two distinct species of galls, and the flies by which they 
are produced, namely, the Ink gall and the Mad apple. I would propose the name 
of Cynips insana for the insect of the latter. Olivier’s figures of the Mad apple and 
its inhabitant are copied in the Arboretxim Britunnicum, pp. 1931, 1932. 
VOL. II. 
C 
