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Speckled Wood Butterfly (Pararge aegeria) Not a rare species today, having made a spectacular comeback following a dramatic collapse in numbers during the early years of the 20th century.<br />
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The specific reason for this post lies in the accompanying video in which you can witness one of P aegeria&#039;s unusual behavioural traits, of which it has several.<br />
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The behaviour shown in the clip is called &#039;thanatosis&#039;.<br />
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If you don&#039;t know what that is, or simply want to watch &#039;thanatosis&#039; in &#039;action&#039; (&quot;or not&quot;, he says with a knowing smile) click here: <section class="video"><iframe width="448" height="282" src="https://www.youtube-nocookie.com/embed/_lEg67f6zQM?hd=1&autoplay=0&rel=0" frameborder="0" allowfullscreen></iframe></section><br />
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              Geotagged,Pararge aegeria,Speckled Wood,Spring,United Kingdom Click/tap to enlarge Promoted

Speckled Wood Butterfly (Pararge aegeria)

Not a rare species today, having made a spectacular comeback following a dramatic collapse in numbers during the early years of the 20th century.

The specific reason for this post lies in the accompanying video in which you can witness one of P aegeria's unusual behavioural traits, of which it has several.

The behaviour shown in the clip is called 'thanatosis'.

If you don't know what that is, or simply want to watch 'thanatosis' in 'action' ("or not", he says with a knowing smile) click here:



    comments (4)

  1. Fascinating behavior only a careful and patient observer would notice, compliments! Posted 2 years ago
    1. One of those 'right place, right time moments'.

      I knew about the behaviour, but didn't know any butterfly species did it.
      Posted 2 years ago
  2. That's so cool! Great job on the video and also just for noticing this! Posted 2 years ago
  3. Cheers :-) Posted 2 years ago

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The speckled wood is a butterfly found in and on the borders of woodland areas throughout much of the Palearctic realm. The species is subdivided into multiple subspecies, including "Pararge aegeria aegeria", "Pararge aegeria tircis", "Pararge aegeria oblita", and "Pararge aegeria insula".

Similar species: Moths And Butterflies
Species identified by Philip Booker
View Philip Booker's profile

By Philip Booker

All rights reserved
Uploaded Jan 8, 2023. Captured May 29, 2021 13:14 in 8 Sea-Saw Way, Brighton BN2 5LH, UK.
  • DSC-RX10M4
  • f/4.0
  • 1/250s
  • ISO160
  • 220mm