Key to males of Soyedina vallicularia, S. alexandria, and S. calcarea

1. Outer paraproct lobe markedly narrowed dorsal to the bulbous base (e.g. Figs. 5‐6)…….… S. vallicularia Outer paraproct lobe robust in shape and narrowed minimally dorsal to the bulbous base (Figs. 29‐30, 34‐35)………………………………………….…2

2. Outer paraproct lobe minimally concave along both anterior and posterior margins; tip nearly parallel‐ sided and straight or slightly concave (Figs. 29‐30)…………………………..……...….... S. alexandria

Outer paraproct lobe noticeably concave along both anterior and posterior margins; tip flared both anteriorly and posteriorly and concave (Figs. 29‐ 30)…………………………….…………..…... S. calcarea