Wing with more than 10 small white spots; clasping cercus rather wide, not finger-like
Wing with 6 or 8 large white spots; clasping cercus narrow, finger-like
Hypandrium with wide tuft of loose setae; dorso-apical corner of clasping cercus obtuse 3
Hypandrium with narrow bundle of compact setae at tip; dorso-apical corner of clasping cercus somewhat acute.
Thoracic pleuron with a blackish dorsal stripe; clasping cercus strongly curved inward and nearly geniculate; phallus narrow in dorsal view
Thoracic pleuron without dorsal stripes; clasping cercus weakly curved inward apically and not geniculate; phallus very wide in dorsal view
Mesonotum blackish; clasping cercus with a separate tubercle at base; basiphallus rather wide with angulate posterior process in lateral view D.
Mesonotum dark yellow with anterior and lateral portions blackish; clasping cercus without separate tubercle at base; basiphallus rather narrow without angulate posterior process in lateral view
Wrestlers stand over their right foot, with left foot raised, clasping each other's right wrist.
Wrestlers hold the left foot up with the left hand, while clasping opponent's right wrist.
Chimps' cultural traditions included cracking nuts by using pieces of wood as hammer and anvil, sucking ants off sticks, clasping
a comrade's arms overhead, and slapping tree branches to get attention.