A new species of Alainites (Ephemeroptera, Baetidae) from Thailand

Abstract

A new species of Baetidae, Alainites siamensissp. nov., is described from Thailand. This new species is closely related to Alainites lingulatus Tong & Dudgeon, 2000, Alainites laetificus (Kang & Yang, 1994) and Alainites yixiani (Gui & Lu, 1999). Species delimitation based on morphological and molecular (mitochondrial COI sequences) evidence is provided. The discovery of this species confirms the wide distribution of Alainites Waltz & McCafferty, 1994 in Southeast Asia.

A new, widespread genus of Baetidae from South Asia (Insecta, Ephemeroptera)

“… Nigrobaetis s.l. usually has less slender legs, outer margin of femora with a row of long, spine-like setae (apart from some Alainites and Takobia that also have short, spine-like setae at outer margin of femur), and claws with denticles gradually decreasing in size toward base or exceptionally without denticles ( Müller-Liebenau 1984 ; Sroka et al 2021 ; Yanai et al 2022 ; Phlai-ngam et al 2022b ; Kaltenbach and Gattolliat 2023 ). Additionally, the larvae of Alainites are distinguished by a paraproct with an elongated prolongation, and the prostheca of the right mandible is bifid, reduced to two bristle-like feathered appendages ( Yanai et al 2022 ), both cha­racters are absent in Arcobaetis gen. nov.; the larvae of Takobia have a paraproct with a short, bent prolongation and a right prostheca reduced to split bristles ( Sroka et al 2021 ), whereas these characters are absent in Arcobaetis gen. nov.…”

A new species of the genus Alainites Waltz & McCafferty, 1994 (Ephemeroptera, Baetidae) from the north of Morocco

“…The latter are A. siamensis Phlai-ngam, Tungpairojwong & Gattolliat, 2022 from Thailand ( Phlai-ngam et al 2022 ), A. lingulatus Tong & Dudgeon, 2000 from Hong Kong ( Tong and Dudgeon 2000 ), A.…”

“… lingulatus Tong & Dudgeon, 2000 from Hong Kong ( Tong and Dudgeon 2000 ), A. yixiani Gui & Lu, 1999 from the Chinese mainland ( Gui and Lu 1999 ; Sroka et al 2021 ; Phlai-ngam et al 2022 ), and A. clivosus Chang & Yang, 1994 from Taiwan ( Kang et al 1994 ; Waltz et al 1994 ; Kluge and Novikova 2014 ; Sroka et al 2021 ).…”

“…The mayfly genus Alainites Waltz & McCafferty, 1994 was established to encompass species previously included in the muticus species group of the genus Baetis Leach, 1815 ( Waltz et al 1994 ). Currently, this genus encompasses 22 species ( Barber-James et al 2013 ; Kaltenbach and Gattolliat 2021 ; Phlai-ngam et al 2022 ; Yanai et al 2022 ). Also, the distribution of Alainites is nearly limited at the Palaearctic and Oriental regions; so far, the highest diversity is found in the West Palaearctic region with eight species.…”

Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

“…Thus, the taxonomic status of Nigrobaetis, Takobia and Alainites remains controversial. Recently, however, the evidences based on cladistic analyses of the family Baetidae and molecular data of allied genera were suggested to prefer considering Alainites, Nigrobaetis and Takobia as valid genera (Cruz et al 2020, Sroka et al 2021, Phlai-ngam et al 2022, Yanai et al 2022). In the present paper, we focus on Nigrobaetis s. str.…”