Victoria University of Wellington Library
Title: An Emergence Study on Uropetala Carovei Carovei (Odonata: Petaluridae) near Wellington, New Zealand, with Notes on the Behaviour of the Subspecies.
Author: W. J. Winstanley
In: Tuatara: Volume 25, Issue 1, July 1981
Publication details: Wellington
Part of: Tuatara : Journal of the Biological Society
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Fig. 3: The emergence stance in Anisoptera: (a) — “upright” type (Tanypteryx pryeri); (b) — “hanging” type (Procordulia grayi); (c) — “upright” emergence angle 0° to 90°; (d) — “Hanging” emergence angle 90° to 180°. 3(a), (c), (d) after Eda (1959).