172 THE ENTOMOLOGIST. 
much trouble, as the insects may be killed and set quickly, 
and gummed of an evening or at any leisure time: when nicely 
set they are fit to be called specimens, and are useful for 
examination, which probably would not be the case were they 
left to die a natural death, or attempted to be pinned and 
set out. 
One word of advice and caution: label everything very 
carefully; for breeding purposes only use the galls them- 
selyes,—no leaves, no twigs, no anything; in killing and 
setting be very careful not to mix specimens and species from 
different galls. This must all be attended to, in order to solve 
some of the interesting problems connected with parasitism 
and galls. 
I have only spoken of the breeding of insects from mature 
galls, as that is only what should be attempted; but in 
special cases I dare say the gall might be kept by preserving 
the twig or plant in water, as we should a flower, till it comes 
to maturity and the larve have a chance of becoming full 
fed; then detach the gall. I have never attempted to breed 
insects from immature galls but once, and then in ignorance: 
it was with the common oak-spangles (Neuroterus lenticu- 
laris), which I collected in the autumn and winter from the 
trees, but could never breed the Neuroterus, till last year I 
collected galls from the ground at the foot of oaks in January 
and February, and so bred the gall-maker freely ; and that is 
what must be done with this species and Fumipennis; it 
does not so much matter with the pretty little Numismatis 
(silky button-gall). 
Galls should not be thrown away when the emergence of 
one series. of insects is complete, as some will have tenants 
for a twelvemonth; the gall-makers, and various inquilines 
(dwellers in galls) and parasites, having various and separate 
times of appearance. 
E. A. Fitcu. 
Maldon, Essex, July 1, 1875. 
Notes on Oviposition. By the Rev. P. H. Jennings. 
(Continued from p. 150.) 
Selenia lunaria—A female, taken June 8th, laid one 
hundred and ten eggs: twenty-eight on the 9th, forty-two on 
