Abbott (277) says "The face is white ... The wings are clear, with a narrow dark stripe basally and a small spot at the nodus ... The mature males develop a pruinose pale-blue color first on the front of the thorax, then on the abdomen."
See his Plate 57e.The female can have a completely different appearance. Cf. Plate 57f in Abbott's book.
September 1, 2012.