Mixaill studio presents a good solution for your games, VR projects and simulators. Butterfly_real is a collection of 10 species of butterflies, made in real size and color.

Butterfly have they own behaviour, and it depends on flying time and how close is player to them. You This assets provides you place area with butterflies on different surfaces. They can explore example scene in Assets/Butterflies Scenes

Pack includes the following types:
Morpho achilles
Aglais urticae
Aglais io
Papilio machaon
Papilio maackii
Chrysiridia rhipheus
Thecla coronata
Ornithoptera alexandrae
Papilio rumanzovia
Morphotenaris schoenbergi

Models have LOD0 and LOD1