Poland 1999
Predatory Stonefly
Perla marginata

There are many friends of stonefly on the stone of the waterside, or plants, and a larva of stonefly is an aquatic life. Having many primitive features is admitted and the fossil is discovered from Permian. The place which gets down on the stone of a sea bed, likes spring water, and flows and changes water has many larvae of stonefly. The kind of this stonefly is folded into the back in piles to lacewing setting and standing a shuttlecock. There is a form where the shuttlecock degenerated and there are some which are seen on the snow of a mountains zone.

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