£© 
GH 
FLIES INJURIOUS TO HORSES, CATTLE, &c. 
pe 
1— Forest Flies. Hippoboscidi. 
2.—Gad Flies. Tabanide. 
3.—Warble Flies. Mistride. 
Forest Fly. Hippobosca equina, Linn. 
AS 
Hiproposca EQUINA, 1 and 2, nat. size and magnified from life ; 3, pupa removed 
from egg-like puparium (after Réaumur). Puparium, nat. size and magnified, 
before complete colouration. 
Durine the past season such an unusual amount of inquiry has 
been forwarded (with specimens accompanying) regarding attacks of 
Diptera (two-winged flies) to horses and cattle, that it has seemed 
most convenient to place these animal attacks by themselves as a 
second part of the year’s Report. 
These include notes on Forest Flies, found troublesome to many 
kinds of animals; also mention of a good many kinds of British Gad 
Flies (Tabanide); and likewise some additional information regarding 
Warble-attack, especially as affecting red and roe deer, which was 
kindly contributed, and is now given under the requisite headings. 
The Forest Fly (figured above with its wings folded as when at 
rest) has been brought into more than ordinary notice during the past 
season, consequently on the New Forest, in Hampshire, which is the 
especial English locality of this horse and cattle pest, having been 
chosen as the scene of our autumn military manceuyres. As the fly 
has generally been considered as only a local trouble, little attention 
