subimago

/ ˌ��ʌ��ɪˈ��ɪɡəʊ /

noun

the first winged stage of the mayfly, with dull opaque wings, known to anglers as a dun, before it metamorphoses into the shiny gauzy imago or spinner See also dun 2 spinner

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Examples have not been reviewed.

This is what is called the subimago, and precedes the imago or perfect state of the insect.

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