White-lined Tanagers are sexually dimorphic, meaning males and females differ in appearance. Males have a black plumage, with white markings beneath the wing. Females are reddish-brown.

Top & Left: A male. El Cairo area, Valle del Cauca, Colombia, 10 June 2016
Middle: A male. Old Buenavista Road, Cali area, Valle del Cauca, Colombia, 13 June 2016
Right & Last: Pozo Azul, Minca area, Sierra Nevada de Santa Marta, Colombia, 31 October 2014