of 
WA.) 
THE ENTOMOLOGIST. 115 
all kinds of turnips; also carrots, onions, and parsneps. 
Mangold and potato seem the only things that escape them. 
They attack the tap-root of all other plants when very 
young. I quite think the insect in the worm state, as 
I sent it you, punctures the roots of the different plants, and 
deposits its egg or larva, as the first sign we see of them is a 
small round lump on the root: this by degrees gets larger 
and larger; and when the plant is about six or eight weeks 
old, on cutting open this lump you will see small white 
maggots; these lumps and maggots go on increasing in size 
and number until they kill the plant; and in the case of 
Swedish turnips they form large angle-berries, like those 
seen on some cattle; and the turnip dies away. In the case 
of onions you will see them the very same as you see maggots 
in meat. Any further information I can give, if you let me 
know, I shall be only too glad to give it, or send you speci- 
mens in the different stages if you require it. I also beg to 
acknowledge the receipt of your letters of the 22nd and 25th 
inst., for both of which I return you many thanks, and I 
enclose you further particulars respecting the insect. If you 
can find out anything or any treatment that will banish this 
insect you will bestow a very great favour on us and many 
others. I have been fighting with it for years: tried all sorts 
of manures, salts, &c.; lime, also; but all to no purpose. Last 
February twelvemonth [ dug into the sand hot roach lime 
from the kiln, at the rate of over six tons to the statute acre; 
still this insect carried off everything last summer ; and out of 
that very piece of sand I got the insects I sent you.—Stephen 
F. Prince; Ballycroy, Ballina, March 27, 1875. 
[I think Mr. Prince, in his explanatory letter, may possibly 
have confounded several insects together. The different 
species of Julus do not come from a white maggot, which is 
rather the economy of a weevil than a centipede; but I have 
often found a Julus in the excrescences caused by other 
enemies.—Edward Newman.} 
E. Erskine Greville.—A Inuminous Centipede.—On 
Wednesday, the 16th of September last, I was spending the 
evening with some friends at Isleworth, and was walking out 
in the garden about nine o’clock. It was a dark night, and I 
had come to a part of the grounds shaded by large trees, 
when I suddenly observed what appeared to be a luminous 
