Female, male, pupa and larva of S. namdanense sp. nov. A, C female B, D–I male J, K pupa L larva. A, B sensory vesicles (right side; anterior view A female B male) C genital fork D hind basitarsus and second tarsomere (left side; lateral view) E coxites, styles and ventral plate (ventral view) F, G styles (right side; ventrolateral view) H ventral plate and median sclerite (lateral view) I ventral plate (caudal view) J gill filaments (right side; lateral view) K terminal hooks (caudal view) L head capsule (ventral view). Scale bars: 0.1 mm (D, J, L); 0.02 mm (A–C, E–I); 0.01 mm (K).

 
 
  Part of: Takaoka H, Srisuka W, Fukuda M, Saeung A (2020) Twenty-one new species of the Simulium (Gomphostilbia) asakoae species group (Diptera, Simuliidae) in Thailand, with their genetic relationships. ZooKeys 950: 51-152. https://doi.org/10.3897/zookeys.950.51298