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  • Title: Morphophysiological and cuticular chemical alterations caused by Xenos entomophagus endoparasites in the social wasp Polistes ferreri (Hymenoptera, Vespidae).
    Author: Torres VO, Soares ER, Lima LD, Lima SM, Andrade LH, Antonialli-Junior WF.
    Journal: Parasitology; 2016 Dec; 143(14):1939-1944. PubMed ID: 27572093.
    Abstract:
    Social wasps can face many challenges during their colony cycle, including the presence of parasites. The order Strepsiptera is among the main parasites of the wasp genus Polistes. The aim of this study was to evaluate the effect of an endoparasite species on the host Polistes ferreri, with the hypothesis that females of this social wasp would undergo morphophysiological alterations as well as changes in their cuticular chemical profile caused by the obligate endoparasite. On average, parasitism was found in 10% of the colonies studied. All the parasitized females showed filamentous ovarioles without developing oocytes, which indicates a physiological castration. Moreover, the endoparasites present in the gaster of females caused its volume to increase, and the presence of endoparasites changed the cuticular chemical profiles of females, confirming our hypothesis. It is likely that this parasitism effect could hamper the maintenance of wasp colonies.
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