File:The life history and bionomics of some North American ticks (1912) (14584877289).jpg

Identifier: lifehistorybiono106hook (find matches)
Title: The life history and bionomics of some North American ticks
Year: 1912 (1910s)
Authors: Hooker, W. A. (William Anson), 1877- Bishopp, F. C. (Fred Corry), 1884-1970 Wood, H. P. (Herbert Poland), 1883-1925 Hunter, W. D. (Walter David), 1875-1925
Subjects: Ticks
Publisher: Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Entomology
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Text Appearing Before Image:
The Cayenne Tick, Amblyomma cajennense, and the Pacific Coast Tick,Dermacentor occidentalis. A mblyomma cajennense: Fig. i. Unengaged larva. Fig. 2.—Unengorged female, dorsal view.Fig. 3.—Male, dorsal view. Fig. •!. Unengorged nymph (balsam mount). Fig. ... Male,ventral view. Fig. ti. Unengorged female, ventral view. Fig. 7. Engorged female, dorsalview. Dermacentor occidentalis: Fig. 8. Male, dorsal view. Fig. 9. Male, ventral \iew.Fig. 10.—Unengorged female, dorsal view. Fig. 11. Unengorged female, ventral view. Fig.12.—Fully engorged female, dorsal view. (Original.) THE CAYENNE TICK. LIFE HISTORY. 153 Observations on the biology of this species have been made byHunter and Hooker (1907), Hooker (1909), Rohr (1909), and New-stead (1909).
Text Appearing After Image:
Fig. 12.—The Cayenne tick, Amblyomma cajennensc Distribution in North and Central America. The large dots show localities where the species has been collected incur Investigation. The small dotsindicate the probable range of the species. (Original.) The egg (Table LXVII).—In the laboratory in August, at a moantemperature of 84° F., oviposition commenced on the ninth day fol-lowing dropping while out of doors,at a moan temperature of S4°F.,11 days passed. Eight of 10 females collected April 12:2, 1908, andkept in the laboratory at a moan temperature of 63° F. commenced 154 LIFE HISTORY OF NORTH AMERICAN TICKS. oviposition on the eighteenth day, the other two beginning oviposi-tion on the sixteenth and twentieth days after collection. Theaverage preoviposition period for 13 ticks was 16.5 days and theaverage oviposition period was 19.7 days. In the laboratory inMay, at a mean temperature of 77° F. oviposition continued for aslong as 23 days. The largest number of eggs recorded w

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