A revision of the ant genus Leptogenys Roger (Hymenoptera: Formicidae) in the Ethiopian Region, with a review of the Malagasy species

*[Leptogenys is revised for the Ethiopian Region & the species of the Malagasy region are reviewed. Separate species-lists and keys for the 2 regions are given. 70 species (56 Ethiopian, 14 Malagasy) are recognised, of which 26 are new. 25 new synonyms, mostly infraspecific, are established. Leptogenys jonesii is transferred to Pachycondyla.]