Tonkinodentus lestes Schileyko, 1992; Holotype (Rc 6358) 5 anterior margin of forcipular coxosternite, ventral view 6 head, forcipular segment and LBS 1–2, ventral view 7 LBS 12, ventral view; non-type (Rc 6555) 8 general view, laterally; Holotype (Rc 6358) 9 left side of LBS 2–4, lateral view; (asp) – accessory spines, (bs) – basal sutures of tooth-plates, (cl) – chitin-line, (dhp) – dorsal half of process of trochanteroprefemur, (im) – pleural intersclerite membrane, (lmd) – longitudinal median depression, (ms) – medial suture, (pr) – leg pretarsus, (ps) – paramedian suture, (pt) – process of trochanteroprefemur, (sp) – slit-like spiracle of LBS 3, (ss) – short caudo-lateral suture, (tp) – tooth-plate, (tr) – tarsungula, (ts) – leg tarsal spur, (t1) – leg tarsus 1, (t2) – leg tarsus 2, (vhp) – ventral half of process of trochanteroprefemur.