Parapsylla, a Gondwanan element in the psyllid fauna of southern Africa (Homoptera)

The genus Parapsylla (Homoptera: Psylloidea) is redescribed and placed in the Diaphorininae of the Family Aphalaridae. Its relationships within this subfamily are discussed. The genus Agmapsyllasyn. nov. is placed into the synonymy of Parapsylla, and Pennavenasyn. nov. and Eudiaphorinasyn. nov. are placed into the synonymy of Diaphorina. The eight known species of Parapsylla are distributed in southern Africa and upland areas of East Africa. Host plant relationships are not clearly established but the genus appears to be associated with species of Maytenus (Celastraceae), Olinia (Oliniaceae) and possibly Olea (Oleaceae) and Syzygium (Myrtaceae). Parapsylla relictasyn. nov, and A. aureussyn. nov. are placed into the synonymy of Arytaina capensis. Parapsylla capensiscomb. nov. is transferred from Arytaina, Parapsylla valenscomb. nov. is transferred from Diaphorina, and the following new species are described: P. angolensis sp. nov., P. eafra sp. nov., P. huila sp. nov., P. marginipennis sp. nov., P. rufa sp. nov. and P. theroni sp. nov.