Took these today.
The first picture is what I know as a 'usual' Small Tortoiseshell
Is the second one an aberration or just a normal variation.
TIA
Small Tortoiseshell
- Padfield
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Re: Small Tortoiseshell
I would regard that as aberrant. It looks as if all the yellow is entirely replaced with white and that this is not merely a function of wear. Because it is a worn, post-hibernation individual, however, it is impossible to say for certain it emerged like that and that some environmental factor that degraded the colour didn't come into play (temperature, moisture, some farm chemical or gas or whatever - just speculating). As the other colours are normal and there's no hint at all of yellow, I suspect it really did emerge like this.
See https://www.ukbutterflies.co.uk/aberrat ... es=urticae and scroll down to ab alba, for example.
Guy
See https://www.ukbutterflies.co.uk/aberrat ... es=urticae and scroll down to ab alba, for example.
Guy
Guy's Butterflies: https://www.guypadfield.com
The Butterflies of Villars-Gryon : https://www.guypadfield.com/villarsgryonbook.html
The Butterflies of Villars-Gryon : https://www.guypadfield.com/villarsgryonbook.html
Re: Small Tortoiseshell
Many thanks for your reply Guy. Much appreciated.
It certainly is an attractive alternative to the ones I usually encounter.
It certainly is an attractive alternative to the ones I usually encounter.
- Jack Harrison
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Re: Small Tortoiseshell
The three adults I had kept in the fridge all winter when warmed up (and released) were in immaculate condition - it seems that they entered hibernation (came indoors) soon after emergence last year.
Jack
Jack
Re: Small Tortoiseshell
What a fascinating find Stevie. Thank you for sharing those photos.