*51. Apharitis nilus Hewitson, 1865

WL: 15mm. Both species and genus are new for Guinea-Bissau. This is a typical element of the Sudan savanna, Sahel and subdesert areas. The specimens were collected in savanna woodland in Beli (Boé), always on flowers of Terminalia albida (Combretaceae), despite the presence of other species such as Acacia macrostachya (Mimosaceae), around which several Acraea and Pieridae were flying. The species occurs in Mauritania, Senegal, Guinea-Bissau, Guinea, Burkina Faso, Ghana, Chad, northern Nigeria, Uganda, Kenya and Sudan .

Studied material. Gabú: Beli (Boé), 3-4.07.2009, 2♂, 2♀ (BS 28860/28863).

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