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Keywords from Image Description:
Ris Wing venation Anax ephippiger. en Drawing of wing venation of Anax ephippiger Detail of Plate Fig from Ris The Odonata or Dragonflies of South Africa Annals of the South African Museum XVIII Explanation of Plate copied from original Hemianax ephippiger Venation of Anisoptera Lettering of veins in front wing of spaces in hind