Relationship between Temperature and Rate of Ovarian Development in the House Fly, Musca domestica L. (Diptera: Muscidae)

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Abstract
The relationship between temperature and rate of ovarian development was determined for two strains of house flies, Musca domestica L. (Diptera: Muscidae), at four constant temperatures, 18, 23, 25, and 28°C. Rates of ovarian development differed between strains. The laboratory-adapted strain demonstrated a faster rate of ovarian development than the wild-type strain. A linear, thermal-unit model was used to describe the relationship between temperature and rate of ovarian development for each strain. The temperature thresholds and the mean number of thermal units required to complete the first two gonotrophic cycles reflected the differences between the rates of ovarian development of the two strains.