DEER FOREST FLY. 65 
I think these bugs drop off about this time, or perhaps later on, and 
are not seen again till the month of July, when they are provided 
with wings, and are a great annoyance to people walking through the 
woods, or through bracken, or other such shrubs. They fly at any 
moving object, but only settle upon Deer, when, after a while, they 
loosen their wings. 
** When flaying Deer in winter they bother us very much, for they 
creep into one’s clothes and into one’s hair in wonderful quick time, 
and (like the description you give of the Forest Fly) they grasp with 
such tenacity that they will not be removed until they are caught 
between the finger and thumb, and it takes a lot of squeezing and 
twisting to kill them. If they are not already known to you, I can 
send you any amount of them later on.” 
On June 8th Mr. Campbell sent me some further observations, 
and amongst them he remarked :— 
‘‘ By the beginning of August I have not the least doubt I can 
send you plenty of winged Forest Flies. They then, or a little after- 
wards, fly at us, and indeed bother us a great deal going through some 
parts of the Deer forest, such as woods and bracken, &c. These I can 
send, and later on can get any amount of them on the Deer, but they 
are all then wingless.”’ 
This remark of Mr. Campbell’s I have given in italies, as it corre- 
sponds exactly with that of Herr Hartmann, which I give further on 
(more at length), that he had found wingless individuals of the Deer 
Louse Fly (L. cervi), male and female, in the coat of the Red Deer the 
whole winter through.* Mr. Campbell remarked :— 
‘‘This is all I can do except to search the hair well for puparia 
when the time comes, which you may depend on my doing.’’—(D. C.) 
In the course of the season Mr. Campbell favoured me with various 
observations of the Deer Forest Fly; but it was not until October 27th 
that he was able to furnish me with specimens, which proved to be 
L. cervi, some in winged condition, and some with the wings thrown 
off, or with the rings only represented by remains of the wings. Mr. 
D, Campbell mentioned :— 
‘¢ This season, owing to the continual cold and wet, has been one 
of the most, if not indeed the most, difficult to find them that I can 
remember. They would not fly at one, as I often used to see them 
do. Besides this, I had no chance of going purposely to look out 
for them; only when walking with our sportsmen through woods I 
could get one now and again, and wrap it in a bit of paper, and 
pocket it. . . . Those I now send are all dead; all had wings 
when captured, some as early as August 28th, and some as late as 
* ‘Deutsche Ent. Zeitschrift,’ xxi. 1877, Heft 1. 
