The type of Ophiocordyceps unilateralis (Ophiocordycipitaceae, Hypocreales, Ascomycota) is based on an immature specimen collected on an ant in Brazil. The host was identified initially as a leaf-cutting ant (Atta cephalotes, Attini, Myrmicinae). However, a critical examination of the original illustration reveals that the host is the golden carpenter ant, Camponotus sericeiventris (Camponotini, Formicinae). Because the holotype is no longer extant and the original diagnosis lacks critical taxonomic information -specifically, on ascus and ascospore morphology -a new type from Minas Gerais State of south-east Brazil is designated herein. A re-description of the fungus is provided and a new phylogenetic tree of the O. unilateralis clade is presented. It is predicted that many more species of zombieant fungi remain to be delimited within the O. unilateralis complex worldwide, on ants of the tribe Camponotini.
Resumo. Neste trabalho, a aranha-saltadora Menemerus bivittatus (Dofour) é registrada como predadora de pupas de formigas Camponotus crassus Mayr. A captura desse tipo de presa foi realizada por meio da execução de um comportamento especializado, conhecido como "snatching". Aranhas que exibem esse comportamento roubam o material transportado por formigas operárias (presas ou formas juvenis) para se alimentar. No Brasil, registros desse tipo de interação são escassos na literatura. Trata-se do primeiro registro do comportamento "snatching" em ambiente urbano.
Palavras-chave:Aranhas-saltadoras; Camponotus crassus; "snatching".
Unusual Predatory Behavior of Menemerus bivittatus (Dufour) (Araneae, Salticidae)Abstract. In this work, the jumping spider Menemerus bivittatus (Dofour) is registered as a predator of pupae of the ant Camponotus crassus Mayr. The capture of this type of prey was performed by running a specialized behavior, known as "snatching". Spiders that exhibit this behavior steal the material transported by worker ants (prey or brood) to feed. In Brazil, records of this type of interaction are quite scarce. This is the first record of the snatching behavior in urban environment.
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