Morphometric and genetic differentiation of two sibling gossamer--wing damselflies, Euphaea formosa and E. yayeyamana, and adaptive trait divergence in subtropical East Asian islands.

The article details a study which focused on the morphometric and genetic differentiation of two sibling gossamer-wing damselflies Euphaea formosa from Taiwan and Euphaea yayeyamana from Japan. The study investigated the adaptive significance of trait divergence and species status in such Euphaea damselflies. Geometric morphometrics showed that the Euphea damselflies are different morphological species characterized by their distinctive wing shapes.