S. Hadwen 
235 
word about Manitoba and the dates on which ticks are most numerous. 
Most of the gorged females I have obtained were collected in June; 
the earliest of which I have a record was captured on May 25th, and 
the latest on July 17th. As soon as the snow disappears, and the warm 
weather begins, adults are apparently found everywhere and are a great 
annoyance to both man and beast, but I have no records of larvae and 
nymphs ever having been taken at this period. This, I believe, is 
probably due to no systematic search having been made for the 
immature stages. 
O 
Protocol. 
Average No. 
of days 
1 ¥ gorged on a dog. Collected at Aweme, 
Manitoba, 
Canada. (N. Criddle) 
July 6, 19111 
10 
Oviposition began... 
„ 16, „ / 
Eggs hatched 
Aug. 26, „ 
41 
Larvae put on rabbit 
... 
Feb. 10, 1912 
Came off gorged 
1 on 
j) 13, ,, 
73 „ 
„ 14, „ 
26 „ 
It 15i 11 
4-4 
20 „ 
11 16i ,1 
Larvae moulted and nymphs emerged 
1 on 
April 30, 1912" 
4 „ 
May 3, „ 
3 „ 
„ 4, „ 
2 „ 
K 
10 „ 
7 
2 „ 
15 3, ,, 
84 
5 „ 
■ » 9. ,1 
4 „ 
„ 10, „ 
3 „ 
)> 11, 11 
1 „ 
>, 12, ,, 
5 „ 
,) 13, ,1 / 
Nymphs put on rabbit; only one attached, and 
several were recaptured ... 
11 „ 
1, 9, ,, 
Came oS gorged 
1 „ 
j, 14, 1, 
Nymphs put on rabbit 
26 „ 
j, 13, 1, 
Came off gorged 
3 „ 
5, 13, ,1 ) 
5 „ 
j) 19, 1, V 
6 
4 „ 
„ 20, „ ) 
Adults hatched. 12 ¥’s and Id 
1 M 
June 20, 1912' 
5 „ 
„ 22, „ 
. 35 
9 
if 
,, 23, ,, 
3 „ 
„ 27, „ J 
2 died in act of emerging. 
Total 1804 
