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PREFERRED EGG LAYING SITES IN PALMACORIXA NANA (HETEROPTERA: CORIXIDAE) Department of Zoology, Erindale College, University of Toronto, Mississauga, Ontario, Canada, L5L IC6*
 

Summary: PREFERRED EGG LAYING SITES IN PALMACORIXA NANA (HETEROPTERA: CORIXIDAE)
Ron AIKEN
Department of Zoology, Erindale College, University of Toronto, Mississauga, Ontario, Canada, L5L IC6*
* Present address: Department of Entomology University of Alberta Edmonton, Alberta, Canada T6 G 2E3
Received January 21, I98O
Keywords: Corixidae, oviposition sites
Abstract
Female Palmacorixananashowed clear preference for wood ovi-
position substrates over Elodeaand plexiglass in both laboratory
and field experiments. Wood was chosen because of its rigidity
and rough surface. These data raise the possibility that males
could gain access to females by controlling localized resources.
Introduction
Female corixids lay single adhesive eggs on virtually any
submerged substrate (Hunderford, 1948). Life history
studies ofvarious species have revealed that most are non-
discriminating in the choice ofoviposition site, apparently
guided more by the available substrate than by any clear
preference. Egg laying sites can vary from stones (Crisp,
1962; Scudder, 1966; Tones, 1975) to the leaves and stems

  

Source: Aiken, Ron - Biology Department, Mount Allison University

 

Collections: Biology and Medicine