Reproductive Isolation in Stegomyia Mosquitoes. I. Sexual Isolation between Aedes aegypti and A. mascarensis1
- 15 July 1968
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of the Entomological Society of America
- Vol. 61 (4) , 865-870
- https://doi.org/10.1093/aesa/61.4.865
Abstract
Previous work has shown that A. aegypti (L.) and A. mascarensis MacGregor hybridize readily and produce fertile offspring. Single males from each of 5 strains of A. aegypti and 1 strain of A. mascarensis were given a choice of females from 2 strains. Mating preference was determined by examination of female spermathecae. Males of both A. a. formosus Walker and A. a. aegypti could readily discriminate between their own females and those of A. mascarensis. Indeed, A. aegypti males were able to seek out and inseminate their own females even when these females were outnumbered by A. mascarensis females in a ratio of 19:1. On the other hand, males of A. mascarensis did not demonstrate a consistent strong choice of mates. Differential mating preference was demonstrated also between A. a. aegypti and A. a. formosus. The implications of these findings for genetic control are discussed.Keywords
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