Linnavuori 1974. Hemiptera of the Sudan, with remarks on some species of the adjacent countries. Families Cryptostemmatidae, Cimicidae, Polyctenidae, Joppeicidae, Reduviidae, Pachynomidae, Nabidaea, Leptopodidae, Saldidae, Henicocephalidae and Berytidae. Annales ent Fenn, 42(3) 1974: 116-138