FIGURES 18–26. 18 in A review of present knowledge of larvae of the Calopterygoidea (Zygoptera) of the Oriental realm, including keys to families and known genera

FIGURES 18–26. 18. Rhinagrion borneense, habitus (original drawing). 19. Philosina alba, habitus (modified from Zhang et al. 2011). 20. Rhinagrion mima, caudal gills: above heavily tracheated median gill; below right lateral gill with basal spines along mid-rib (modified from Lieftinck 1956). 21. Philosina alba caudal gills: above heavily tracheated median gill; below right lateral gill with basal spines along mid-rib (modified from Zhang et al. 2011) 22. Rhinagrion borneense, detail of mask (original drawing). 23. Philosina buchi, detail of mask (redrawn from Zhang et al. 2011). 24. Philoganga vetusta, habitus (adapted from Xu 2016). 25. Philoganga vetusta, details of caudal gills and antenna (redrawn from Xu 2016). 26. Philoganga montana, detail of mask (original drawing).