Zygonyx natalensis
Zygonyx natalensis, the blue cascader or powdered cascader is a species of dragonfly in the family Libellulidae. It is found in most of sub-saharan Africa.[1]
Male in flight
| Zygonyx natalensis | |
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| Male | |
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| Species: | Z. natalensis |
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| Zygonyx natalensis (Martin, 1900) | |
Habitat
This species is found along streams and rivers; males are most frequently seen patrolling or hovering over rapids or waterfalls.[2]
gollark: Observe, filtering.
gollark: I'm messing with image processing. By multiplying that mask with the (shifted) FFT of an image, I can effectively make a"low pass filter" thingy. I should probably find some actual educational material on this instead of just tweaking a badly written python program.
gollark: pls repost 849035452651536414
gollark: What? Unlikely, pyrobot.
gollark: If you *must* know, the noncognitohazard is just the inverse FFT of this thing shifted a bit.
References
- Clausnitzer, V.; Suhling, F.; Dijkstra, K.-D.B. (2016). "Zygonyx natalensis". IUCN Red List of Threatened Species. 2016: e.T60076A86825854. doi:10.2305/IUCN.UK.2016-3.RLTS.T60076A86825854.en.
- Tarboton, Warwick; Tarboton, Michèle (2015). A Guide to the Dragonflies and Damselflies of South Africa. Cape Town: Struik Nature. ISBN 9781775841845.
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