Riekophlebia crocina, a new genus and species of Atalophlebiinae (Ephemeroptera: Leptophlebiidae) from the Wet Tropics bioregion of north-eastern Australia

摘要

Riekophlebia crocina, a new genus and species, is described from Australia based on nymphs and adults. Riekophlebia belongs to a lineage that also includes the Australian genera Austrophlebioides, Kirrara, Manggabora and Tilly ardophlebia. There havebeen few taxonomic studies on the Leptophlebiidae of the Wet Tropics bioregion of north-eastern Australia. The first species to be described from the region were those by Ulmer (1916). Later, two species of the genus Jappa were described by Skedros and Polhemus (1986), the genus Kalbaybaria was established by Campbell (1993), and two northern species of Atalomicria were included in a revision of that genus by Campbell and Peters (1993). More recently, Christidis (2003) recorded 27 species in 13 genera from the Wet Tropics bioregion, many of which are undescribed. Formal description of these undescribed taxa commenced with the description of three species of the genus Austrophlebioides by Christidis and Dean (2005). In this paper I describe a new genusfrom the Wet Tropics bioregion of north-eastern Australia and record its phylogenetic relationship to other Gondwanan genera.