Subgenus Sesapa Walker, 1854

Diagnosis. The nominative subgenus differs from Nipponasura by the larger size of moths, non-merged transtillae without transtillar processes, presence of very small trigonal medial costal process directed ventrally in the male genitalia, flat antevaginal plate, much shorter and narrower ductus bursae and elongated, pear-like corpus bursae in the female genitalia.