Male aedeagus, right view, Mecyclothorax aeneipennis: apex, apical portion of median lobe distad the ostial opening through which the internal sac everts; dop, dorsal ostial microtrichial patch of internal sac; fp, ventrally concave flagellar plate of internal sac; gp, gonopore positioned on membranous dorsal surface overlying flagellar plate; lp, left paramere; rp, right paramere; sac, internal sac; tip, most distal portion of apex; vop, ventral ostial microtrichial patch.