Revision of the tribe Caenoculini (Insecta: Ephemeroptera: Caenidae) and its position within the Brachycercinae

Abstract

Abstract The tribe Caenoculini Sun & McCafferty, 2008 is revised, now including the genera Caenoculis Soldán, 1986, and Tigrocercus Malzacher, 2006. Improved diagnoses of these two genera are given. Caenoculis dangi Soldán, 1986 is transferred to the genus Tigrocercus and Tigrocercus nastassjae Malzacher, 2013 to the genus Caenoculis. Caenoculis acutalis Zhou, Sun & Mccafferty, 2003 is regarded as representative of a separate genus Brachoculis n. gen. A diagnosis of the new genus is given. Relationships within the Brachycercinae are discussed.