36 DEER. 
are Pediculus cervi, Linneus (1761), Ornithobia pallida and Melophagus 
cervi, Meigen, and Hemobora pallipes, Curtis. 
The fly may be generally described as flat, and of a horny texture, 
with the two wings, when present, laid flat on the back, overlapping 
at the edges, and projecting very much beyond the end of the tail (see 
figure, p. 85), and it is about a sixth of an inch in length from head 
to tail, consequently smaller than our common Forest Fly (H. equina), 
which is about a quarter of an inch in length. 
The general colouring is of a horny brown or yellow; the head 
yellowish, with the top of the head and the mouth parts brown. 
Thorax flat, chiefly brown, with small bristly warts. Abdomen 
yellowish or brown, or brown and grey above in the female, covered 
with minute warts bearing bristles, and variable in shape,—small in 
the males, somewhat cylindrical or inclining to be conical; larger at 
the extremity in the females. Legs chiefly yellow; thighs short and 
thick; legs hairy; claws black, long, curved, and horny, each with a 
somewhat thumb-shaped much shorter claw at its base, and the curved 
claws having transverse furrows on the sides, and saw edges, as in the 
case of H. equina.* 
In my ‘ Twentieth Annual Report’ I have given detailed descrip- 
tions of the habits and appearance and other points so far as seemed 
serviceable for practical use in regard to this ZL. cervi, with such full 
references to the works of special writers on the infestation, as Pro- 
fessors Von Siebold, Nitzsch, Loew, &c., that, as this paper is only 
meant as a record of such amount of information as I have been able 
to gain in the past season regarding wings of the female as observable 
on British specimens, I have not repeated the matter or references ; 
but for those who wish to go into the history of this L. cervi, as given 
by different observers under different synonyms, the list of publications 
given in Dr. Rudolph Schiner’s ‘Fauna Austriaca (Die Fliegen),’ 
ii. Theil, p. 649, will be found useful. 
The following notes refer to the North British observations and 
specimens sent me in the past year. 
On February 9th, Mr. Campbell, writing from Strathconan, sent 
me the following observation of the great amount of the infestation 
which he had observed present in the case of a Roe Deer in noticeably 
bad health. After some general remarks, Mr. Campbell remarked :— 
«To-day, however, I have happened to fall in with a Roe Deer 
which looked the picture of misery, and which I shot out of pity. I 
* For figures of the foot of Hippobosca equina, with bristle-like central appen- 
dage, &c., much magnified, see my ‘ Nineteenth Annual Report,’ p. 99; and for full 
details see the two accompanying plates, in which the foot and its apparatus is 
given as seen from above and sideways, magnified to a size of about seven by three 
to four inches. 
