- Top of thorax with one longitudinal stripe and a second partial stripe with a separated posterior spot.
- Lower appendage longer than upper and ending with two vertically directed teeth.
- Color pattern similar to male.
- A pair of flat, rounded horns extending rearward from vertex behind lateral ocelli.
Body length: 56.0
Local distribution: Atlantic slope at 600 - 1200 m. Pacific slope at 500-600 m.
Habitat: Forest streams with medium to large rocks and fast flow.
Species range in Middle America: Costa Rica
Male abdomen length: 44
Female abdomen length: 43
Female hindwing length: 39
Updated: 4 April 2008