My first Hawaiian Butterfly posting. 35 non-natives, folks! 2 endemics. This species first showed up here only in 2008. Interesting to see the females prominently high on sticks and the males patrolling between. Super abundant.
Polyommatinae, the blues, are a subfamily of gossamer-winged butterflies (Lycaenidae). It was long used to assign taxa of unclear relationships, and its contents are in need of revision. Several genera might not even belong here.