Key: Step 80. Tanypodinae 66 Trissopelopia

80a. Apex of horn atrium with a reflexed swelling below the plastron plate; rim over half the length of the horn (020e.jpg).
020-2.jpg species overview

Trissopelopia longimana

80b. Apex of horn atrium at most a little widened; rim less than half the length of the horn (020g.jpg).

Trissopelopia flavida
Decision path