First record of Thaumasia Perty, 1833 nursery web spider (Araneae: Pisauridae) preying upon Polistes canadensis (Linnaeus, 1758) (Hymenoptera: Vespidae) in the Neotropical region

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  First record of Thaumasia Perty, 1833 nursery web spider (Araneae: Pisauridae) preying upon Polistes canadensis (Linnaeus, 1758) (Hymenoptera: Vespidae) in the Neotropical region Abstract Thaumasia Perty, 1833 are opportunistic spiders that inhabit the Neotropical region. This study reports a spider of the genus Thaumasia preying upon Polistes canadensis (Linnaeus, 1758) in semiarid region of Brazil. A spider of the genus Thaumasia was observed moving rapidly from the fountain's water surface to capture an individual of P. canadensis . After successfully capturing the wasp, Thaumasia sp. was observed partially perched on the wall of the fountain, with the prey still on the water surface and trapped by its chelicerae. The pedipalps and chelicerae of Thaumasia sp. manipulated the head of P. canadensis , which stopped moving shortly after being captured, probably because of the action of the spider's venom. The study records a wasp in the diet of Thaumasia based on the ca...

An acquired taste: predation of Gymnopis sp. (Amphibia: Gymnophiona) by Ancylometes bogotensis (Keyserling, 1877) (Araneae: Ancylometidae) in Costa Rica

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An acquired taste: predation of Gymnopis sp. (Amphibia: Gymnophiona) by Ancylometes bogotensis (Keyserling, 1877) (Araneae: Ancylometidae) in Costa Rica

Abstract
We report a predation event in Costa Rica involving Ancylometes bogotensis preying on Gymnopis sp. This observation marks the first documented interaction between these two species.

I would like to sincerely thank Danni Sherwood for kindly sharing this publication with me through ResearchGate. 

Cubas-Rodriguez, Alex & Sherwood, Danniella. (2025). An acquired taste: predation of Gymnopis sp. (Amphibia: Gymnophiona) by Ancylometes bogotensis (Keyserling, 1877) (Araneae: Ancylometidae) in Costa Rica. Revista Latinoamericana de Herpetología. 8. 129-132. 10.22201/fc.25942158e.2025.3.1278.