Abstract
An aberrant specimen of Ourapteryx persica Menetries was collected at Mt. Kozingadake, Nara Prefecture, Honsyu, Japan, on July 22nd 1973 by the author. The wings of the normal specimen are white in general appearance. However, this aberrant specimen differs from the normal one as follows: forewing grey, with the inner line preceded by a distinct white band, with the outer line followed by a similar band, and with a distinct white marginal line; hindwing with a grey submarginal area, slightly mixed with blackish-fuscous scales.
