Spesbona angusta

by Pete November. 01, 2020 151 views

Finally after many tries, I have captured what my wife calls, "Oh another little stick", Spesbona angusta.

The Spesbona damselfly is one of the few "chameleons" of the dragonfly world and quite unique to the insect world at that. Both the male and female of this endangered fynbos species change from royal blue to a much darker brown within seconds when temperatures drop, when a cloud passes over or when the sun sets. When temperatures rise again, the insect again rapidly returns to its former blue glory. It is the only insect species so far known to science in which this reversible colour change because of temperature changes is present in both sexes, says Stellenbosch University conservation ecology postgraduate student Charl Deacon and his supervisor, insect conservationist Prof Michael Samways.

They set out their findings in an article in the Journal of Insect Conservation.

Deacon, C. & Samways, M.J. (2016). Conservation of a phenomenon: rapid, reversible colour change in both sexes of one of the world's most threatened damselflies, Journal of Insect Conservation, 20(3): 497 - 504

Spesbona angusta

Spesbona angusta

Spesbona angusta

Spesbona angusta

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Bob Chappell 2 months, 2 weeks ago

Lovely images and interesting science. I hope to look up the chemistry of the changes in this damselfly.

2 months, 2 weeks ago Edited
Pete Replied to Bob Chappell 2 months, 1 week ago

thank you

2 months, 1 week ago Edited
Jay Boggess 2 months, 3 weeks ago

WOW! Great shots and fascinating commentary on this amazing creature!
+1smile+1

2 months, 3 weeks ago Edited
Pete Replied to Jay Boggess 2 months, 3 weeks ago

thank you

2 months, 3 weeks ago Edited
Jay Boggess Replied to Pete 2 months, 2 weeks ago

My treat, Amigo!
Stay safe, well & joyous!
+1grinning+1

2 months, 2 weeks ago Edited
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