Phallic complex of Aeropus sibiricus and Aeropus licenti. A-B: A. sibiricus; C-D: A. licenti. 1: Basal valves of penis (Bp); 2: Apodemes (Apd); 3: Zygoma (Zy); 4: Valves of cingulum (Vc); 5: Apical valves of penis (Ap).