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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Wengen Area, Switzerland June 2023 (1 Viewer)

Maybe Thor's Fritillary Clossiana thore but they are best done on underwing, any underwing shots?
 
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What would be the confusion species on upper wing?
Very little, hence my suggestion but I wouldn't usually try to ID most Fritillaries on upperwing alone, I think it's a female.

I made the point that most Fritillaries are best done on underwing, for the benefit of Martin, in the event he photographs one again.

The same applies to Blues.
 
Very little, hence my suggestion but I wouldn't usually try to ID most Fritillaries on upperwing alone, I think it's a female.

I made the point that most Fritillaries are best done on underwing, for the benefit of Martin, in the event he photographs one again.

The same applies to Blues.

Definitely good advice. Even more so for blues, I was just curious about confusion species as there are so many European frits I don’t know
 

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