Taxonomic review of the Oriental genus Polyplocia Lestage, 1921 (Ephemeroptera, Euthyplociidae), with two new records for Thailand

Sedtawut Kwanboon; Boonsatien Boonsoong; Chanaporn Suttinun

doi:10.3897/zookeys.1179.107312

Taxonomic review of the Oriental genus Polyplocia Lestage, 1921 (Ephemeroptera, Euthyplociidae), with two new records for Thailand

Zookeys. 2023 Sep 11:1179:197-217. doi: 10.3897/zookeys.1179.107312. eCollection 2023.

Authors

Sedtawut Kwanboon¹, Boonsatien Boonsoong^{1

2}, Chanaporn Suttinun³

Affiliations

¹ Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
² Biodiversity Center Kasetsart University (BDCKU), Bangkok 10900, Thailand.
³ Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine Chiang Mai University, Chiang Mai 50100, Thailand.

Abstract

Previously, the euthyplociid mayfly from Thailand was reported as Polyplocia spp. without designation to any nominal species. In this study, the genus Polyplocia Lestage, 1921 in Thailand was reviewed. Two species are recognized: Polyplociaorientalis Nguyen & Bae, 2003 and P.nebulosa Gonçalves & Peters, 2016. This is the first report of P.nebulosa in Continental Asia. Cytochrome c oxidase subunit I (COI) data and illustrations based on nymphal characters were used to confirm two different species in Thailand. Additional morphological characteristics of the nymph and eggs of the two species from Thailand are also shown in detail. The taxonomic status of Polyplocia in the Oriental region is reviewed. Keys to known nymphal and imaginal stages are provided and the distribution of Polyplocia in the Oriental region is discussed.

Keywords: Burrowing mayfly; Continental Asia; Insular Asia; distribution; habitat; taxonomy.

Sedtawut Kwanboon, Boonsatien Boonsoong, Chanaporn Suttinun.