Extended Data Fig. 3: Rhinoceros beetles use their elytra to depress the hindwings to the resting position after flight.
From: Passive wing deployment and retraction in beetles and flapping microrobots
a,b, When at rest, the hindwings can be folded neatly inside the elytra. c, Stroke (dashed line) and elevation (solid line) angles of the elytron (orange) and hindwing (blue) during retraction. The time instant was set to 0 s when the elytron touched the hindwing while closing.
