Figures 16–19 in Neotropical Copestylum (Diptera, Syrphidae) breeding in Agavaceae and Cactaceae including seven new species

Figures 16–19. Adult Copestylum, male genitalia; scale bar = 0.30 mm. 16–19, Copestylum milae sp. nov., male holotype: 16, genitalia and associated structures, lateral view; 17, hypandrium, ventral view. 18–19, Copestylum hidalgense sp. nov., male holotype: 18, genitalia and associated structures, lateral view; 19, hypandrium, ventral view.