Euphaedra harpalyce, the common blue-banded forester, is a butterfly in the family Nymphalidae.

It is found in Guinea-Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Equatorial Guinea Gabon, the Central African Republic, Angola, the Democratic Republic of the Congo, Sudan, Uganda, Rwanda, Tanzania and Zambia.

Both wings above uniform black-brown, with small white apical spot on the forewing and a bright blue transverse band on the hindwing, which is broad at the anal angle, anteriorly becoming narrower terminates at vein 6 or 7 and is sometimes continued more or less far on the forewing also.

The under surface is rather uniform light green or grey-green with 1–3 black dots in the cells.

In the type-form the subapical band of the forewing is entirely absent in the male and very narrow and yellowish in the female.