Vietnamellidae (Insecta, Ephemeroptera) of Thailand.

Chonlakran Auychinda,Boonsatien Boonsoong,Michel Sartori

doi:10.3897/zookeys.902.46844

Chonlakran Auychinda, Boonsatien Boonsoong + Show 1 more

Open Access

https://doi.org/10.3897/zookeys.902.46844

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Abstract

The genus Vietnamella Tshernova, 1972 is investigated in detail for the first time in Thailand. As a consequence, four species are recognized, namely Vietnamella maculosasp. nov., Vietnamella thani Tshernova, 1972, Vietnamella sp. B and Vietnamella sp. C. Herein, larvae and eggs of V. maculosasp. nov. are described and reported from Chiang Rai Province. The larva of Vietnamella sp. B from Tak Province is also described, but not named due to insufficient material, and the imaginal stages and eggs of V. thani Tshernova, 1972 are described and presented for the first time. Our morphological evidence is supported with COI data. The phylogeny showed that four different lineages of the genus Vietnamella occur in Thailand, one of them, viz., Vietnamella sp. C, only known from a couple of COI sequences retrieved from the Barcode of Life Data System (BOLD). Diagnoses for all known Oriental species are also presented.

Highlights

The monogeneric family Vietnamellidae was originally established by Tshernova (1972) [type species: Vietnamella thani Tshernova, 1972] based on larval specimens
Other analysed mayfly sequences were obtained from the Barcode of Life Data System (BOLD): Vietnamella sp
Vietnamella ornata, which was previously reported from Yunnan, China is not included because its larvae are still unknown (Tshernova 1972)

Summary

Introduction

The monogeneric family Vietnamellidae was originally established by Tshernova (1972) [type species: Vietnamella thani Tshernova, 1972] based on larval specimens. Three species have been described from the Oriental region They are V. ornata (Tshernova, 1972), V. sinensis (Hsu, 1936) [=V. dabieshanensis You & Su, 1987, V. qingyuanensis Zhou & Su, 1995, V. guadunensis Zhou & Su, 1995], and V. thani (Hu et al 2017). The genus Vietnamella is endemic in the Oriental region and is distributed in China, Thailand, India and Vietnam (Tshernova 1972; Jacobus et al 2005; Hu et al 2017; Selvakumar et al 2018). We review the species of Vietnamella in Thailand and describe a new species in the genus and the imaginal stages of V. thani based on reared specimens. A distribution map and mitochondrial COI sequence data are provided

Ethics statement

Boonsoong 21-2-2016

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