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THE SIGNIFICANCE OF THE OUTGROWTHS ON THE PROTHORAX OF ECDYONURUS VENOSUS FABR. (EPHEMEROPTERA)
Published online by Cambridge University Press: 31 May 2012
Extract
In 1930 Dr. R. H. Emslie turned over to the author a small collection of mayfly nymphs collected by him in streams in Scotland. Among them was a small series of nymphs of Ecdyonurus venosus Fabricius in different instars collected at Tummel Bridge and Bridge of Weir. This species is unique in having prominent postero-lateral extensions of the prothorax resembling the wing-pads of the meso- and metathorax (Figs. 1 & 8).
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- Copyright © Entomological Society of Canada 1936
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