Fig. 1

Thraulodes cochunaensis (Leptophlebiidae), still photographies from high-speed video S1 at 1677 frames per second showing first six wing cycles at lift-off. A Resting position, B–D initial jump-off and first downstroke, E–G first upstroke, H–K second downstroke, L–N third upstroke, O–R fourth downstroke, S–U fifth upstroke, V–Y fifth downstroke, Z–BB sixth upstroke, CC–DD sixth downstroke