Tiunova T.M. 2022. A description of Parameletus ensiformis Tiunova, 2008 larva (Ephemeroptera: Siphlonuridae) from the Russian Far East // Euroasian Entomological Journal. Vol.21. No.5: 284–289 [in English].

Federal Scientific Center of the East Asia Terrestrial Biodiversity FEB RAS, Prospekt 100-letiya Vladivostoka 159, Vladivostok 690022 Russia. E-mail: tiunova@biosoil.ru

doi 10.15298/euroasentj.21.5.08

ABSTRACT. The larva of Parameletus ensiformis Tiunova, 2008 from the Russian Far East is described and illustrated for the first time. The larva is similar to larvae of P. chelifer Bengtsson, 1908 and P. minor (Bengtsson, 1909) and differs from larva of P. chelifer by shape and length/width ratio of gills I, VI and VII, and from larva of P. minor by the absence of maculation on the abdominal terga and by the length of posterolateral spines of tergum IX.

KEY WORDS: Ephemeroptera, mayfly, larva, Parameletus, Russian Far East.

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