Diacrisia sannio

In the Russian Far East (Amur, Primorye, Sakhalin, Kunashir), eastern China, Korea, and Japan it is replaced by Diacrisia irene.

In pallida Stgr., which occurs constantly in Central Asia and aberratively also in Europe, the black colour is reduced.

(D. s. mortua (Staudinger, 1887)) from Syr-Darja, the last trace of black and pink has disappeared, so that extreme specimens of this form are quite uniformly pale yellow on both sides of the wings and body.

In specimens from Ferghana, the Issyk-kul and the neighbouring countries further east in Central Asia, the red inner margin of the forewing is entirely absent, the black on the hindwing being however present.

Further eastward, at the Amur, a form occurs with very sharp black markings, and with the ground colour of the hindwing strongly tinged with reddish, amuri Butler, 1881 Stgr.

Illustration from John Curtis 's British Entomology Volume 5
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