THE ENTOMOLOGIST’S WEEKLY INTELLIGENCEE. 
69 
infant cases I met with one which was 
very nearly full size. This I showed to 
Mr. M‘Luchlan with considerable gusto, 
and, thus incited, he soon met with a 
similar case. Altogether we found at 
least half a dozen, which, compared with 
the old dry cases, showed no appreciable 
difference in size, except that the skirts 
indeed of these cases of the feeding larvte 
were far more ample than those of the 
dry cases, which only seem to produce 
ichneumons. Indeed the larva of Satura- 
tella appear to attach to their cases the 
skins of all the leaves they have ever 
eaten, so that the size of the case ought 
to be a very fair test of the size of the 
larva within. Fancy an alderman walking 
about with the shells of all the turtles he 
had ever eaten arranged symmetrically 
on his back. — H.T. Stainton; May2S. 
Diptera. 
Cgnips of the Bedeguar. — I have re- 
cently been interested in the gall-fly that 
is instrumental in forming those pretty 
moss-like bosses so apparent in autumn 
on the wild rose, and known by the name 
of “ bedeguars.” The Cynips Rosce, as it 
is scientifically called, is black, with the 
abdomen ferruginous, save the tip, which 
is black. The arched appearance of the 
body, and the absence of nerves in the 
posterior wings sufficiently characterize 
this gall-fly. The ovipositor is lodged in 
a groove of the abdomen, being rolled op 
in a spiral form till required for use. 
These vegetable bosses are formed late 
in the summer, and serve both as food 
. and habitation for the grub during the 
'winter months. It is the natural ten- 
dency of the rose to clothe itself with 
) prickles, and consequently we find the 
i galls thickly covered with fibrous bristles, 
\which may serve a two-fold object, as 
affording warmth and also protection 
ffrom the intrusion of ichneumons. Each 
Ibedeguar contains many separate cells, 
'■which give rise individually to a numerous 
;progeny. It is surprising with what 
rapidity the gall-fly eats its way through 
the hard little hollow globe that keeps it 
a close prisoner till it assumes the imago 
state. On removing the bristles from the 
bedeguar the small circular openings 
through which the gall-flies have made 
their exit are readily apparent, and the 
great power of their mandibles may be 
estimated, since the cells are so hard as 
to be cut with some difficulty even with 
a knife. — Peter Inchbald, SforfAes Hall, 
near Huddersfield ; May 15. 
Hemipteea. 
Ranatra linearis. — In answer to Mr. 
Scott’s enquiry regarding this species, I 
beg to state that it was quite common a 
few years back in a pond made by ex- 
cavating earth for brick-making in South 
Fields, Wandsworth. I used to take it 
in stocking my aquarium, but as I have 
not dredged in the pond for two or three 
years I cannot say whether it is still to 
be taken there or not. — T. Blackmore, 
The Hollies, Wandsworth, S. IV. ; May 28. 
EXCHANGE. 
Exchange. — I have some duplicate 
larvae of Hypogymna Dispar, which I 
should like to exchange for eggs or larvae 
of any of the following: — 
Drymouia Chaonia, 
... Dodontea, 
Leiocampa Dictaea, 
... Dictaeoides, 
Peridea Trepida, 
Eutbemonia Russula, 
Arctia Villica, 
Nemeophila Plantaginis, 
Endromis Versicolora. 
Those who do not hear from me in a 
week will know that I have not accepted 
their offers.— John Stevens, 24, .B/ooms- 
bury Street, Bedford Square, London; 
May 26. 
Exchange. — After supplying several 
