Teinppalupus imperialis behludinii (male)
 
Teinopalpus imperialis, the Kaiser-i-Hind, is a rare species of swallowtail butterfly found from Nepal and north India east to north Vietnam. The common name literally means "emperor of India". The Kaiser-i-Hind is much sought after by butterfly collectors for its beauty and rarity. The green iridescence of the wings has been found to be due to three-dimensional photonic structure of the scales and is the subject of much research. Much larger, differs also in coloration and markings as follows: Upperside, forewings: the irroration of green scales on the terminal two-thirds restricted to a sub-terminal moderately broad band diffuse along its inner edge, and a medial somewhat ill-defined similar band that is bordered both on the inner and outer sides by diffuse dusky black; this is succeeded by two broad diffuse transverse dark grey bands, the outer of the two edged on its outer side narrowly with black, followed by a subterminal green band and terminal velvety-black margin. Hindwing: the upper discal yellow patch so conspicuous in the male, replaced by a very much larger dark grey patch, below which comparatively narrow markings of yellow extend up to the dorsum; a postdiscal sinuous lunular narrow black band and a subterminal series of green lunules as in the male, but the apical lunule dark grey, not yellow; the tail-like extensions of the termen at the apices of veins 3 to 6 are black shaded with green, those at the apices of veins 4 and 6 tipped, the former with yellow the latter with greenish-white. Underside similar to the underside in the male, but on both forewing and hindwing the areas coloured with rich ochraceous and yellow are grey, with the exception of a well-marked moderately broad subterminal band on the forewing which is of a dull ochraceous colour; on the hindwing the grey discal area extends right up to the apical lunule of the subterminal series. Antennae, head, thorax and abdomen as in the male.