Harpendyreus is a genus of butterflies in the family Lycaenidae.
Small butterflies (wingspan 17–24 millimetres) with rounded wings without a tail at the back. The upper parts of the males are bright blue to reddish-violet, often with a small, black spot at the hind corner of the hindwing. The underparts are reddish-brown with slightly darker transverse bands, but without black spots.
The species are found along rivers and streams in high-altitude forests. The larvae feed on various low herbs, including lady's mantle, mints and sage.
The genus is distributed in sub-Saharan Africa, mostly in the eastern and southern parts.
Species Harpendyreus aequatorialis (Sharpe, 1892) Harpendyreus argenteostriata Stempffer, 1961 Harpendyreus berger Stempffer, 1976 Harpendyreus boma (Bethune-Baker, 1926) Harpendyreus hazelae Stempffer, 1973 Harpendyreus juno (Butler, 1897) Harpendyreus kisaba (Joicey & Talbot, 1921) Harpendyreus major (Joicey & Talbot, 1924) Harpendyreus marlieri Stempffer, 1961 Harpendyreus marungensis (Joicey & Talbot, 1924) Harpendyreus meruana (Aurivillius, 1910) Harpendyreus noquasa (Trimen & Bowker, 1887) Harpendyreus notoba (Trimen, 1868) Harpendyreus reginaldi Heron, 1909 Harpendyreus tsomo (Trimen, 1868)
External links "Harpendyreus Heron, 1909" at Markku Savela's Lepidoptera and some other life forms Seitz, A. Die Gross-Schmetterlinge der Erde 13: Die Afrikanischen Tagfalter. Plate XIII 73