In Trinidad, West Indies the social wasps Angiopolybia pallens and Polybia rejecta come to foam nests of the frog Engystomops pustulosus, where they prey on eggs and tadpoles. Frog offspring in early-stage foam nests appear to be almost immune to predation by the wasps, but they become more vulnerable as the nests age and lose definition.

中文翻译：

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观察新热带社会黄蜂（膜翅目、胡蜂科）捕食青蛙 Engystomops pustulosus（两栖类、Leptodactylidae）的卵和蝌蚪

在西印度群岛的特立尼达，群居黄蜂 Angiopolybia pallens 和 Polybia rejecta 来到青蛙 Engystomops pustulosus 的泡沫巢中，在那里它们捕食卵和蝌蚪。早期泡沫巢中的青蛙后代似乎几乎不受黄蜂的捕食，但随着巢的老化和失去定义，它们变得更加脆弱。