About Caltoris cahira (Moore, 1877)
Male Caltoris cahira: The upperside is dark rufous-brown, with olive-brown suffusion across its base. The forewing has two small yellow spots at the end of the cell, two yellow spots on the disk, and two very small yellow spots before the apex. The underside is rufous-brown. Female Caltoris cahira have an additional triangular, bright yellow opaque spot beyond the middle of the submedian vein, touching this vein. This spot is not present in the eight spots males have, and it appears as an imperfect band between the submedian vein and the first median veinlet on the underside. Females also have their entire underside thickly and evenly covered with rufous-brown scales, per Wood-Mason and de Niceville. This species has been observed in the south Andaman Islands. A related taxon found in Sikkim, northeastern India, is sometimes classified as the subspecies Caltoris cahira austeni.
