Two new Epitolini from Liberia in the genera <i>Stempfferia<i> Jackson, 1962 and <i>Cephetola<i> Libert, 1999 (Lepidoptera: Lycaenidae: Poritiinae)

Two new butterfly species in the family Lycaenidae were discovered during recent studies in the Nimba Mountains, Liberia: Stempfferia katikae sp. nov., and Cephetola wingae sp. nov. Both are described in comparison with their respective closest relatives. Both belong in the subtribe Epitolina, which has kept increasing in size since it was revised in 1999 and which contains a number of closely related species-pairs with completely allopatric distributions within the Guineo-Congolian forest zone. Two additional such pairs are discussed in this paper.