Boloria selene + mysterious guest

Boloria selene

Small pearl-bordered fritillary

Denis & Schiffermüller, 1775

 

Can you spot a mysterious guest?

 

ƒ/8, 1/20 s, ISO 100 - stacked from 8 exposures; natural light

 

Nikon D7100 + Sigma 105 mm Macro + Manfrotto MT190XPRO3 + Manfrotto 410 Junior + Novoflex Castel XQ II

Done