Figure 5. Schematic illustrations of a droplet of water in contact with the cicada wing surface.

(A) Leptopsalta bifuscata; (B) Aola bindusara; (C) Meimuna opalifer; (D) Cryptotympana atrata. The dark grey areas represent protrusions, the light grey areas show the water droplet remaining on the surfaces and the black lines show the interface of solid, liquid and gas.