G. II. F. Nuttall 
95 
No. of 
Date when 
Host main¬ 
tained at a 
Number of 
gorged ticks 
collected on 
Host 
Lot 
put on host 
temperature of 
succeedingdays 
Remarks 
Larvae 
Dog 
1737 
“11” 
22. SI. 1912 
20° C. 
44 on day 3 
375 ,, 4 
36 ,, 5 
Larvae put on host 88 
days (at 17° C.) after 
ecdysis. Progeny of 
1737 1, $ 11. 
Nymphs. 
Hedgehog 
10 
2.5. IV. 1906 
10° C. 
20 ,, 5 
50 put on, 20 recovered. 
>> 
11 
14. V. 1906 
11° C. 
3 „ 3 
12 „ 5 
2 „ 7 
30 put on, 17 recovered. 
5 > 
13 
4. VI. 1906 
16° C. 
4 ,, 5 
20 put on, 4 recovered. 
Jackal 
1737 
<< J >5 
11. V. 1912 
23° C. 
13 by day 7 
13 nymphs put on host 
15 days after ecdysis ; 
all recovered. 
> ) 
5 » 
19. V. 1912 
23° C. 
24 on day 4 
81 „ 5 
48 „ 6 
19 „ 7 
6 „ 9 
3 „ 11 
Nymphs put on host 
23 days after ecdysis. 
55 55 
Adults. (Female.) 
27. V. 1912 
22° C. 
12 „ 3 
51 „ 4 
5 „ 5 
3 „ 7 
7 „ 9 
Nymphs put on host 
31 days after ecdysis. 
Dog 
1 
29. V. 1902 
Doom temp. 
- „ 12-15 
.— 
55 
2 
4. VI. „ 
5 5 
- „ 11-12 
—■ 
55 
3 
18. I. 1904 
5 5 
- „ 11 
— 
55 
4 
26. I. „ 
55 
- „ 14 
— 
55 
5 
21. X. „ 
10° C. 
— „ 12-13 
— 
55 
6 
22. X. „ 
10 ° c. 
- „ 14 
— 
Jackal 
1737 
(1 j )> 
3. VII. 1912 
20° C. 
2 „ 10 
1 „ 12 
2 „ 14 
1 „ 16 
Adults (7 3', 7 ? ) put 
on host 32 days after 
ecdysis; 6 ¥’s re¬ 
covered. 
5 5 
1737 
j)) 
15. VII. 1912 
20° C. 
5 „ 8 
5 „ 9 
18 „ 10 
10 „ 11 
7 „ 12 
1 „ 13 
1 „ 14 
1 „ 16 
Adults (about 100 3 
and ¥ ) put on host 
44 days after ecdysis; 
48 ¥’s recovered. 
The time required for metamorphosis. 
The time required for metamorphosis is reckoned as follows:—(1) Egg to Larva: from 
the date on which the female began ovipositing to the day on which the first larvae 
emerged from the egg-shells; (2) Larva to Nymph: from the date on which the larvae 
dropped ofi gorged to the day on which the first nymphs emerged; (3) Nymph to 
Adult: from the date on which the nymphs dropped off gorged to the day on which 
the first adults emerged. 
