Isospidia angustipennis is a moth in the Drepanidae family. It was described by Warren in 1904. It is found in Cameroon, the Central African Republic, Ghana, Ivory Coast, Nigeria and Uganda. The length of the forewings is 12–18 mm for males and 14–19 mm for females. The ground colour of the wings is pale yellow, yellow, pale yellowish brown, pink, brown or grey, speckled with brown. There is a conspicuous dark brown or black discocellular spot and traces of a posterior cell spot.