- Wings clear.
- Top of abdomen nearly all sky blue.
- Lower appendage with two short lobes.
- Dorsum of S8 entirely pale; S10 all black.
- Wings clear. A. medullaris is distinctly larger and longer than sp. F.
Male abdomen length: 30.0
Male hind wing length: 24.0
Female abdomen length: 31.0
Female hind wing length: 26.0
Local distribution: Both slopes at mid-elevation, 1600 - 2000 m.
Habitat: Clear-running streams and rivers in forest and open areas.
Species range: Mexico, Central and South America
Updated: 27 January 2013