Male genitalia of the Thereus oppia species group. Lateral view of capsule and penis (top) with penis tip enlarged and ventral view (bottom). Posterior of insect to the right 15 T. orasus (arrow points to ventral brush organ) 16 T. lomalarga (arrow points to position of small teeth) 17 T. oppia 18 T. brocki. Scale bars: 0.5 mm.

  Part of: Robbins RK, Heredia AD, Busby RC (2015) Male secondary sexual structures and the systematics of the Thereus oppia species group (Lepidoptera, Lycaenidae, Eumaeini). ZooKeys 520: 109-130.