Can Semaeomyia sp. (Hymenoptera: Evaniidae) function as a parasitoid of the spider Teudis sp. (Araneae: Anyphaenidae)?
Keywords:
ensign wasp, parasitism, Senegalia tenuifoliaAbstract
This study reports possible parasitism of the spider Teudis sp. Pickard-Cambridge (Araneae: Anyphaenidae) by the parasitoid Semaeomyia sp. Bradley (Hymenoptera: Evaniidae) as a parasitoid. In Oct 2016, we collected fruits of the Senegalia tenuifolia (Fabaceae: Mimosoideae) that previously were bagged with voile fabric, at the campus of the Federal University of Lavras, at Lavras, Minas Gerais, southeastern Brazil. In 1 of the fruits, we observed an anyphaenid spider, Teudis sp., from which an individual of Semaeomyia sp. apparently had emerged. We suggest that this may be the first record of a host species for Semaeomyia and the first parasitism record of spiders by the family Evaniidae, which is widely known to parasitize cockroach egg sacs. Additional research is needed on this poorly known group of parasitoids.
Sumario
Este estudo relata um possível parasitismo da aranha Teudis sp. Pickard-Cambridge (Araneae, Anyphaenidae) pelo parasitoide Semaeomyia sp. Bradley (Hymenoptera: Evaniidae). Em outubro de 2016 coletamos frutos de Senegalia tenuifolia (Fabaceae, Mimosoideae) que já haviam sido ensacados com tecido de voil, no campus da Universidade Federal de Lavras, em Lavras, Minas Gerais, no sudeste do Brasil. Em um dos frutos, observamos uma aranha Anyphaenidae Teudis sp., da qual aparentemente emergiu um indivíduo de Semaeomyia sp. Nós sugerimos que este pode ser o primeiro registro de uma espécie hospedeira para representantes de Semaeomyia e o primeiro registro de parasitismo de aranhas para a família Evaniidae, que é amplamente conhecida por parasitar ootecas de baratas. Pesquisas adicionais são necessárias para este grupo de parasitoides pouco conhecidos.
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