FIGURES 641–663 in Review of the Kimminsula-complex (Ephemeroptera, Leptophlebiidae)

FIGURES 641–663. Hubbardula heterolepida gen. sp. n., right tergalii with ventral lamella bent left. 641, tergalius III of last instar larva (in Canadian balsam, to show natural coloration); 642–648, tergalii I–VII of the same larva; 649, tergalius III of holotype (dry, to show outline); 650–656, tergalii I–VII of young larva with minimally developed protoptera (in falling light, to show natural coloration); 657–663, the same in transmission light, to show outlines.