Life Cycle of the Screw-Worm Reared in Outdoor Cages Near Veracruz City, Mexico1

Abstract
The life cycle of the screw-worm (Cochliomyia hominivorax (Coquerel)) native to the coastal plain of Veracruz State, Mexico, differed from that reported for Texas and Florida strains only in the longer time between copulation and first oviposition. However, this delayed oviposition may have been caused by the cold windy weather that occurred during the winter of the test. Sizes of eggs and pupae were within the ranges previously reported. Weights of larvae were slightly less than those of a similar strain reared at Mission, Texas, but this difference may be the result of an error in the way samples were collected for the Mexican study.

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