The East Asian species of the genus Peribaea Robineau-Desvoidy are revised. Twelve species are recognized, eleven of which are classified into four species groups: the fissicornis group, egesta group, orbata group, and minuta group. One species, P. trifurcata, is treated as incertae sedis. The autapomorphies of these species groups are defined and characters illustrated: fissicornis group: - male genitalia with distiphallus bearing strong spines ventrally; egesta group: - epiphallus absent, ventral part of distiphallus raised along midline; orbata group: - postgonite distinctly bifid apically, upper lobe short, lower lobe long and pointed apically; distiphallus subrectangular in shape, sclerotized on dorsal and ventral portion with some spinules ventrally in lateral view, middle portion weakly sclerotized or membranous; minuta group: - distiphallus suboval in shape, broadly sclerotized in lateral view bearing some spinules ventrally. The following six species are described from Japan and China: P. abbreviata sp. n., P. apaturae sp. n., P. caesiata sp. n., P. egesta sp. n., P. glabra sp. n., P. hongkongensis sp. n. Diagnoses of all species and descriptions of new species are given, and a key to the twelve species is provided.
All Science Journal Classification (ASJC) codes
- Ecology, Evolution, Behavior and Systematics
- Insect Science