. P. bianor. Geographically as well as seasonally very variable. male: the pilose stripes broad, the posterior three usually united, when they are separated the stripe of the lower median remains broader than the interspace, which separates it from the stripe of the submedian fold; upper surface of the forewing dusted with green or greenblue, this scaling commonly condensed into a band before the narrowly dark distal margin; upper surface of the hindwing anteriorly blue or blue-green and posteriorly dusted with green, commonly with a more thickly scaled large green or blue patch (or a similar band), a red anal spot, besides 0—4 red submarginal spots and at least anteriorly some distinct green submarginal spots. The black basal area of the forewing beneath always extends beyond the base of the upper median, sometimes the whole wing is black; under surface of the hindwing with a complete row of red submarginal spots. The female with less dense metallic scaling; the red spots on the upperside of the hindwing usually more numerous and larger than in the male. The butterfly occurs from North Japan to Tonkin and West China and appears to be fairly common in all its localities, sometimes occurring in profusion. Like the allied species the males congregate on moist sand and visit flowers. The larva is green with 2—8 light oblique bands, on Aurantiaceae.
Karl Jordan in Seitz. ==Subspecies==