A new terrestrial talitrid genus, with two new species from Myanmar

Myanmarorchestia Hou, gen. n. with two new species is described from terrestrial habitats in Myanmar.

        From November 2016 to April 2017, five China-Myanmar joint expeditions were organized by the Southeast Asia Biodiversity Research Institute to explore the biodiversity of Myanmar. Detailed examination of the specimens and their genetic data reveal that a talitrid genus including two species are new to science. This is the first record of terrestrial Talitridae in Myanmar. The new genus is characterized by 4-dentate lacinia on left mandible, simple gnathopod I in both sexes, weakly chelate gnathopod II in male, simplidactylate pereopods and complex and lobed gills. Myanmarorchestia peterjaegeri Hou, sp. n. closely resembles M. seabri Hou, sp. n. in gnathopod II merus and carpus protuberant on posterior margin; however, the former is distinguished from the latter by palp of maxilla I with two articles, coxal gills convoluted, and telson with nicks on surface. Additionally, DNA barcodes of the new species are obtained to confirm their distinctiveness.

        The specific epithet Myanmarorchestia seabri is derived from the abbreviation of Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (CAS-SEABRI); noun in apposition. 

        This work was financially supported by a project of the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (2015CASEABRI005, Y4ZK111B01). The result is published as " A new terrestrial talitrid genus, Myanmarorchestia, with two new species from Myanmar (Crustacea, Amphipoda, Talitridae) " on ZooKeys.

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Myanmarorchestia seabri  Hou, sp. n.

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Myanmarorchestia peterjaegeri Hou, sp. n.

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Collection localities of Myanmarorchestia species from Myanmar. 1 Myanmarorchestia peterjaegeri Hou, sp. n. 2 M. seabri Hou, sp. n.