FIGURES 19–24 in Stylogomphus thongphaphumensis (Odonata: Anisoptera: Gomphidae), a new gomphid dragonfly and the first record of S. malayanus Sasamoto, 2001 from Thailand

FIGURES 19–24. Larva of Stylogomphus thongphaphumensis sp. nov., (19) antenna in dorsal view; (20) right mandible in ventral views; (21) left mandible in ventral views; (22) prementum in ventral view; (23) right maxilla in ventral view; (24) anal appendages in dorsal view. Scale = 1 mm (19), 0.2 mm (20, 21, 23), 0.5 mm (22, 24).Published as part of Chainthong, Damrong, Sartori, Michel & Boonsoong, Boonsatien, 2020, Stylogomphus thongphaphumensis (Odonata: Anisoptera: Gomphidae), a new gomphid dragonfly and the first record of S. malayanus Sasamoto, 2001 from Thailand, pp. 231-245 in Zootaxa 4763 (2) on page 240, DOI: 10.11646/zootaxa.4763.2.6, http://zenodo.org/record/375826