*57. Iolaus eurisus helius (Fabricius, 1781)

WL: 18mm. I. eurisus is new for Guinea-Bissau. It is quite similar to I. menas, but has a larger black apical area on the forewing and the males are a deeper blue. The present subspecies flies from Senegal to Ivory Coast and the nominate one from Ghana to Nigeria. The host-plants are unknown.

Studied material. Cacheu: Caió, 1 specimen in 2007 (JB).

Probable abundance and proposed status. AB: R; CS: VU.