Two non-destructive techniques for determining the sex of live adult Hylobius warreni

Abstract

Two non-destructive sexing techniques suitable for use in the field and laboratory are described, and tested with the Warren root collar weevil, Hylobius warreni Wood (Coleoptera: Curculionidae). On the second visible abdominal sternite of males is a longitudinal depression that is absent on females. In addition, setae on the last visible abdominal sternite of females are arranged longitudinally; setae on males are arranged radially. For the first character, accuracy was 90% and sex Could be determined without the aid of magnification. The latter character was slightly more reliable, at 95% accuracy, but required at least 12x magnification.

Published in

Canadian Entomologist
2008, volume: 140, number: 5, pages: 617-620
Publisher: ENTOMOL SOC CANADA

SLU Authors

• Öhrn, Petter

  • Department of Ecology, Swedish University of Agricultural Sciences
    

• Björklund, Niklas

  • Department of Ecology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Forest Science

Permanent link to this page (URI)

https://res.slu.se/id/publ/19287