THE BUGILLIESIA COMPLEX OF AFRICAN BAETIDAE (EPHEMEROPTERA)

The Bugilliesia complex is a distinct grouping of Afrotropical Baetida e (Ephemeroptera) genera distinguished by a conspicuous basomedial pro tuberance on segment 2 of the male genital forceps. It includes Potamo cloeon Gillies; Afrobaetodes Demoulin; Kivua McCafferty & Lugo-Ortiz, new genus; Rhithrocloeon Gillies; Bugilliesia Lugo-Ortiz & McCafferty, new genus; and Mutelocloeon Gillies & Elouard. Genera are each highly distinctive as larvae (Kivua remains unknown as larvae), but the comp lex is not definable in the larval stage. Cladistic analysis shows Pot amocloeon to be the most plesiotypic lineage, with all other genera sh aring larval apomorphies. Kivua, Rhithrocloeon, Bugilliesia, and Mutel ocloeon form the next sequential clade, and the latter three form the next. Bugilliesia and Mutelocloeon are the most apotypic, sister linea ges. Relationships are reflected in transitional changes in the unusua l male genitalia. The recognition of the six sequenced species groups as genera constitutes a phylogenetic classification. Kivua consists of K. elouardi (Gillies), new combination, and K. insueta (Kopelke), new combination, thereby restricting Rhithrocloeon to consist of R. indic ator Gillies and X. permirum (Kopelke). Bugilliesia consists of certai n species previously considered in Afroptilum Gillies: B. grisea (Gill ies), new combination; B. guineensis (Gillies), new combination; B. ni tida (Ulmer), new combination; B. notabilis (Kimmins), new combination ; and B. sudanensis (Ulmer), new combination. Potamocloeon macafertior um Lugo-Ortiz, new species, is described from northeastern South Afric a, and represents a considerable range extension for the genus. Afroba etodes intermedius Lugo-Ortiz & McCafferty, new species, is described from northeastern South Africa. Diagnosis of all genera are given alon g with species inclusions and distributions.