arculus

English

Etymology

Diminutive of Latin arcus (“bow, curve”).

Noun

arculus

  1. A crossvein between the radius and cubitus near the base of the wing in certain insects
    • 2015, Christopher Hassall, Sean Brady, “Strong geographical variation in wing aspect ratio of a damselfly, Calopteryx maculata (Odonata: Zygoptera)”, in PeerJ‎, volume 3, →DOI:
      Wing length (the length from the costal end of the vein separating the arculus from the discoidal cell to the tip of the wing) and wing area were calculated for each of the four wings on each individual.
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