Aedeagi of new Ptychoptera species a P. hekouensis, dorsal view b P. hekouensis, lateral view c P. hekouensis, ventral view d P. longa, dorsal view e P. longa, lateral view f P. longa, ventral view g P. xiaohuangshana, dorsal view h P. xiaohuangshana, lateral view i P. xiaohuangshana, ventral view. Scale bars: 0.2 mm. (AEA = ejaculatory apodeme, AES = aedeagal sclerite, ALP = lateral ejaculatory process, AS = sperm sac, ASA = subapical sclerite of aedeagus).