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Related Experiment Video

Updated: Sep 2, 2025

Methods for Staging Pupal Periods and Measurement of Wing Pigmentation of Drosophila guttifera
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Methods for Staging Pupal Periods and Measurement of Wing Pigmentation of Drosophila guttifera

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Evolution: The origin of insect wings revisited.

Andrew Ross1

  • 1Department of Natural Sciences, National Museum of Scotland, Chambers Street, Edinburgh EH1 1JF, UK.

Current Biology : CB
|August 9, 2022
PubMed
Summary

Primitive insect nymphs had abdominal extensions that likely served as early wings, aiding in gliding. This discovery sheds light on the evolutionary origins of insect flight.

Area of Science:

  • Evolutionary biology
  • Paleontology
  • Insect morphology

Background:

  • Insect flight is a key innovation driving their ecological success.
  • The evolutionary origins of wings and flight remain incompletely understood.
  • Early insect evolution involved significant morphological changes.

Purpose of the Study:

  • To investigate the function of lateral extensions on primitive insect nymphs.
  • To determine if these extensions are homologous to insect wings.
  • To understand the role of these structures in early insect locomotion.

Main Methods:

  • Comparative morphology analysis of fossilized primitive insect nymphs.
  • Biomechanical modeling to simulate gliding capabilities.
  • Phylogenetic analysis to trace the evolutionary history of abdominal extensions.

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Related Experiment Videos

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Main Results:

  • Lateral extensions were identified on the abdominal segments of primitive insect nymphs.
  • These extensions are proposed as serial homologues of wings.
  • Evidence suggests these structures facilitated controlled gliding in early insects.

Conclusions:

  • The study provides evidence that wing evolution in insects may have originated from abdominal structures.
  • These findings offer new insights into the functional morphology and evolutionary pathways of insect flight.
  • The research highlights the importance of gliding as a precursor to powered flight in insect evolution.