188 HORSE AND CATTLE FLIES. 
and of a /ony pear-shape. ‘Tie larva in this stage is much more beset 
with prickles than before its moult to the third condition. On the 
upper side from the second to the fourth, or eighth, in the middle of 
the fore edge, is a small group of fine small prickles; in my specimens 
in which the prickles are most observable, the groups are from the 
second to the seventh, and the narrow transverse bands of exceedingly 
small thorns sometimes found at the hinder edge of the fourth, fifth, 
and sixth segments, are also present. ‘The side-swellings up to eighth 
or ninth segments prickly. On the under side the prickles are arranged 
from the second to the eighth segment (inclusive) in groups along the 
fore edge, and in rows along the hinder edges of the segments. On the 
ninth segment are two transverse rows; on the tenth one row of 
prickles ; the eleventh bare. 
The skin of the larva at this stage is very finely shagreened; and 
the stigmata brown or rusty in colour, and half-moon or crescent- 
shaped. 
The chief points in the above notes are taken from Dr. Brauer’s 
~ fully detailed descriptions in his work previously referred to, together 
with comparison of my own specimens, and are only offered as a guide 
to distinguish this species in some degree from our two other British 
kinds of warble infestation. Up to the present time (so far as I am 
aware) the Hypoderma diana is the only kind of Warble Fly known to 
infest deer in Great Britain, that is to say, the only species of Hypo- 
derma of which the maggots infest the hide; therefore, the mere fact 
of the maggot being so found might be taken as strong presumptive 
evidence that it was of this species. Nevertheless, as sometimes one 
kind of warble attack is certainly not limited to one kind of animal, 
and sometimes there is great doubt as to what other ‘‘ hosts” a given 
kind may affect, 1 have tried to the best of my power to go into the 
matter here, as in case of such a thing as the Ox Warble Fly attack 
being extended to deer, should be found to occur, it would be a matter 
of no small practical importance. 
The following notes, with which I was favoured by Messrs. R. and 
J. Pullman, 17, Greek Street, Soho Square, London, W., are of very 
useful interest, as being taken from investigation of the great number 
of deer-hides sent to their hands for purposes of manufacture. 
Messrs. Pullman observed with regard to fallow deer :—‘‘ The 
marks of bot or warble have never been noticed on the pelts of fallow 
deer.* 
‘The Scottish roe deer pelts are frequently seen very badly ‘bot- 
marked’; but the ‘bot-holes’ are smaller than in the red deer pelts, 
* Here Messrs. Pullman made some remarks on presence of “ Ticks’ on fallow 
deer, which I give in the following paper. 
