ISSN:
1572-8889
Keywords:
predation
;
osmeterium
;
spined soldier bug (Podisus maculiventris)
;
black swallowtail (Papilio polyxenes)
;
chemical defense
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract All larvae in the family Papilionidae possess osmeteria, eversible glands that release defensive chemicals upon disturbance. These chemicals have been shown to be repellent to ants, mantids, and other predaceous arthropods with chewing mouthparts. In this study, we demonstrate that the pentatomid Podisus maculiventris,an important predator of the black swallowtail Papilio polyxenes,is capable of piercing the body wall of the caterpillar and consuming body fluids without eliciting osmeterial eversion. Tenebrio molitorlarvae coated with osmeterial secretions of Papilio polyxeneswere universally rejected by Podisus maculiventris,suggesting that the predator is in fact repelled by the swallowtail defensive chemistry. By circumventing the defensive behavior of the caterpillar, the pentatomid is able to utilize an otherwise chemically unsuitable prey species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01048003
Permalink
