Male, pupa and larva of S. chaowaense sp. nov. A–D male E–G pupa H larva. A hind basitarsus and second tarsomere (left side; lateral view) B coxites, styles and ventral plate (ventral view) C ventral plate and median sclerite (lateral view) D ventral plate (caudal view) E gill filaments (right side; lateral view) F terminal hooks (caudal view) G cocoon (dorsal view) H head capsule (ventral view). Scale bars: 1.0 mm (G); 0.1 mm (A, E, H); 0.02 mm (B–D); 0.01 mm (F).

 
 
  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