98 LIFE HISTORY OF NORTH AMERICAN TICKS. 
GEOGRAPHICAL DISTRIBUTION. 
The type locality for this species is Milton, Mass. Specimens have 
also been taken at Norwich and Taftsville, Vt. Most of the other 
collections were made in Victoria and Refugio Counties in Texas by 
Mr. J. D. Mitchell. We have one authentic record from D’ Hanis, 
Medina County, Tex., and one of the authors (Hooker) collected 
larve and nymphs which he thought were this species at Grand Cane, 
La., and Hawthorn and Quincy, Fla. It is very probable that this 
tick has a wide range of distribution, but owing to the fact that little 
collecting has been done upon birds in other localities, the range of 
the species is not fully known. 
LIFE HISTORY. 
Little has been published on the biology of this tick. Hooker 
(1909a) reports the finding of molted larval skins attached to the 
head of a meadowlark. These were associated with engorged larve 
of this genus and it was thought that they might be exuvia of the bird 
tick. 
The egg.—Owing to the difficulty in securing engorged females no 
records have been made upon preoviposition and oviposition periods. 
The number of eggs deposited by this species has not been determined. 
Dr. Philip B. Hadley, of the Rhode Island Agricultural Experiment 
Station, kindly sent Mr. Nathan Banks a large number of larve 
which hatched about August 15 from eggs deposited by a number of 
engorged females collected on turkeys at Norwich, Vt., June 28, 
1909. These larve were forwarded to us at Dallas, Tex., by Mr. 
Banks. 
The larva (Tables XXTX—XXX).—The longevity of the larva of 
this species has not been definitely determined. Larve of one lot 
which hatched about August 15 lived at least 39 days. At the end 
of that period they were placed on hosts. 
As is indicated in Table X XIX, larve have been engorged on rab- 
bits and guinea pigs. Two attempts to engorge them on chickens 
failed, though a few were found to attach. Attachment was found 
to take place very soon after the larve were applied, usually within 
5 to 30 minutes. Dropping began as soon as the fifth day after 
attachment. The longest period of engorgement observed was 12 
days. The weighted average time from application to dropping in the 
case of the 33 larve engorged was 7.5 days. 
