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EnglishEdit

EtymologyEdit

sub- +‎ imago, after German Subimago.

NounEdit

subimago (plural subimagos or subimagines)

  1. (zoology) A stage in the development of certain insects, intermediate between pupa and imago, during which the insect can fly but must shed a skin before becoming mature.
    • 1853, Francis Walker, Catalogue of the Specimens of Neuropterous Insects in the Collection of the British Museum[1], page 538:
      Subimago, Fem.—Dull piceous: antennæ black: abdomen more than twice the length of the thorax: setæ brownish testaceous, mutilated: legs dull testaceous; fore-legs brown: wings gray; veins black, not strongly marked.
    • 1996, Richard W. Merritt, An Introduction to the Aquatic Insects of North America[2], page 126:
      The subimago (a winged, but usually sexually immature stage) in the life cycle of mayflies is unique among living insect orders. The Ephemeroptera have two winged-instars, the subimago and the adult (or imago).
    • 2009, James H. Thorp, Ecology and Classification of North American Freshwater Invertebrates[3]:
      Subimagos emerge at the surface, fly to a support, molt immediately to the adult stage, live only a few hours, swarm, and mate shortly after ecdysis.
    • 2011, Rüdiger Wagner, Central European Stream Ecosystems: The Long Term Study of the Breitenbach[4]:
      Subimagines flutter away immediately and rest at protected sites near the stream for up to 2-3 days, until the molt to the very short-lived adult occurs.

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