FIGURES 16–22. Simulium nunesdemelloi n in Simulium nunesdemelloi (Diptera: Simuliidae), a new species of black fly from the northwestern region of Amazonas State, Brazil

FIGURES 16–22. Simulium nunesdemelloi n. sp. (Diptera: Simuliidae), female. 16. Terminalia in situ, ventral view. 17. Terminalia in situ after clearing procedures, ventral view. 18. Cercus and anal lobe in situ, lateral view. 19. Genital fork. 20. Cercus and anal lobe, lateral view. 21. Hypogynial valves. 22. Internal spicules of spermatheca. Arrows in Figs. 16, 17, 18 and 20 indicate internal, membranous folded region of cercus.