A new Cretaceous genus of xyelydid sawfly illuminating nygmata evolution in Hymenoptera

Abstract

Nygmata are prominent glandular structures on the wings of insects. They have been documented in some extant insects, including several families of Neuroptera and Mecoptera, the majority of Trichoptera, and a few of the hymenopteran Symphyta. However, because nygmata are rarely preserved in compression fossils, their early development and evolution are… (More)
DOI: 10.1186/1471-2148-14-131

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