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A Temperature Study of the Overwintering Site of the Sheep Bot Fly Oestrus ovis L.

Charlie E. Rogers, F. W. Knapp, D. Cook and M. V. Crowe
The Journal of Parasitology
Vol. 54, No. 1 (Feb., 1968), pp. 164-165
DOI: 10.2307/3276893
Stable URL: http://www.jstor.org/stable/3276893
Page Count: 2
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Abstract

Investigations of the overwintering habits of the sheep bot fly, Oestrus ovis L., necessitated obtaining data on temperatures of the nasal passages and sinuses. Sheep were confined at low atmospheric temperatures, and the temperature of their nasal passages, frontal and maxillary sinuses, and body was measured. Throughout the study, the body temperatures were normal, and the sinus temperatures remained relatively constant. Temperatures of the nasal passage varied directly with the depth at which the readings were taken and with the atmospheric temperatures. Atmospheric temperatures as low as 10 F probably do not affect the nasal temperature sufficiently to produce quiescence in O. ovis larvae.

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