FIGURE 27 in The black flies (Diptera: Simuliidae) of Vietnam

FIGURE 27. Pupa and larva of Simulium (Montisimulium) nigrofilum sp. nov. A–N, Pupa and O–R, Larva. A, Frontal trichomes; B, Facial trichome; C–F, Thoracic trichomes (C, anterodorsal; D, anterolateral; E, mediolateral; F, ventrolateral); G, Gill filaments (left side; dorsal view); H, Enlargement of filament showing black pigments inside cuticle; I, Hair-like seta on dorsal surface of abdominal segment 1; J, Hair-like seta and minute seta on dorsal surface of abdominal segment 2; K, Terminal hooks (caudal view); L, Grapnel-shaped hooklet on lateral surface of abdominal segment 9; M & N, Cocoons (M, dorsal view; N, lateral view); O, Antenna showing three unpigmented annulations of segment 2; P, Mandible; Q, Hypostoma; R, Head capsule (ventral view). Scale bars. 1.0 mm for M and N; 0.1 mm for G and R; 0.05 mm for O; 0.02 mm for H, K, P and Q; 0.01 mm for A-F, I, J and L.