FIGURES 13 – 20 in New African species of Helina Robineau-Desvoidy (Diptera, Muscidae)

FIGURES 13 – 20. (13 – 16) Helina mediomaculata sp. nov., male: (13) sternite 5, dorsal view; (14) male cercal plate and surstyli, dorsal view; (15) male cercal plate and surstyli, lateral view; (16) aedeagal complex, lateral view. (17 – 20) Helina sexnotata sp. nov., male: (17) sternite 5, dorsal view; (18) cercal plate and surstyli, dorsal view; (19) cercal plate and surstyli, lateral view; (20) male aedeagal complex, lateral view