The S-band extends obliquely from the base of cell cu₁ across r-m, reaching the anterior wing margin in cell r₁, then following the anterior margin to the wing apex. The basal part sometimes has an incision or indentation in the posterior margin in the middle of cell cu₁. Teneral specimens of species that lack the incision often have a similar pale area in the base of the S-band and should be scored with caution.