Journal of Insect Behavior

, Volume 1, Issue 1, pp 17–29

Multiple matings increase the fecundity of the yellow swallowtail butterfly,Papilio xuthus L., in summer generations

  • Mamoru Watanabe

DOI: 10.1007/BF01052501

Cite this article as:
Watanabe, M. J Insect Behav (1988) 1: 17. doi:10.1007/BF01052501


Females of the yellow swallowtail butterfly, Papilio xuthus,were reared in the laboratory. They were divided into four groups held under different mating conditions: nonmating (virgin) and mated once, twice, and three times. The number of eggs in the ovaries was counted by dissection. Virgin females produced increasing numbers of mature eggs, up to about 30, in the week following emergence. When the female had mated once, the number of mature eggs was significantly higher than that of virgin females by the second day after emergence. However, the double- and triplemated females did not increase the number of eggs in each state further than the singlemated females. The double-mated females deposited significantly more eggs than the singlemated females in the laboratory. The triplemated females also deposited more eggs on the day after the third mating than the doublemated females. Thus, multiple matings increased the number of eggs deposited. The change in the hatchability and the morphology of the spermatophore in the bursa copulatrix suggested that the sperm from the last mating had precedence.

Key words

fecundityfertilitymultiple matingsnumber of spermatophoresPapilio xuthus

Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • Mamoru Watanabe
    • 1
  1. 1.Department of Biology, Faculty of EducationMie UniversityMieJapan