North American Range
Known to stray northward in some years. Only one record for Vermont found on September 6, 1994 (J. Hedbor) in a garden nectaring scarlet runner bean in South Hero. Specimen resides in his personal collection.
Long hindwing tails. Upperside is dark black-brown; body and wing bases are iridescent blue-green. Males have a costal fold enclosing scent scales on the leading edge of the forewing. Dark row on underside of hindwing is a complete band.