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J Parasitol. 1988 Jun;74(3):427-30.

Life cycle of Sarcoptes scabiei var. canis.

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Department of Biological Sciences, Wright State University, Dayton, Ohio 45435.


The life cycle of Sarcoptes scabiei var. canis was systematically investigated in vivo. The life cycle of females and males consisted of an egg, larva, protonymph, and a tritonymph that gave rise to an adult. Development from egg to adult required 10.06-13.16 days for the male and 9.93-13.03 days for the female. Egg incubation times were greater than 50.1 to less than 52.97 hr. Larval duration was between 3.22 and 4.20 days. The durations of protonymphal stages that were destined to become females and males were greater than 2.40 to less than 3.40 days and greater than 2.33 to less than 3.33 days, respectively. Tritonymphs destined to become females and males molted in greater than 2.22 to less than 3.22 days and greater than 2.42 to less than 3.42 days, respectively. During development, all life stages frequently left their burrows and wandered on the skin surface.

[Indexed for MEDLINE]

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