Bicyclus angulosa, the Startled Bush Brown, is a butterfly in the Nymphalidae family. It is found from Senegal to Cameroon and in the Central African Republic, the Democratic Republic of Congo, Sudan, Uganda, Ethiopia, Kenya, Angola, Tanzania, Zambia, Malawi, Mozambique and Zimbabwe. The habitat consists of dense savanna, including Brachystegia woodland. Both sexes are attracted by fermenting fruit. Adults of the wet-season form are on wing from December to May, while adults of the dry-season form are found from May to September.