FIGURES 10–17. Vatellus caissara. 10–13 in Vatellini Sharp (Coleoptera, Dytiscidae) from Brazil: two new species, new records, and a checklist

FIGURES 10–17. Vatellus caissara. 10–13. Male genitalia; 10. Right lateral lobe; 11. Median lobe, lateral view; 12. Detail of apex of median lobe, ventral view 13. Median lobe, ventral view; 14. Speleum and ventrites V and VI, dorsal view; 15–17 Female genitalia; 15. Spermatheca and associated structures, ventral view (a) and dorsal view (b); 16. Gonocoxae, ventral view; 17. Gonocoxosternites, ventral view. Scales: Figs. 10–13 and 15–17 = 0.1 mm, Fig. 14 = 0.5 mm.