Baetis (Rhodobaetis) gemellus Eaton, 1885

Gabelashvili, Sophio, Mumladze, Levan, Bikashvili, Ani, Sroka, Pavel, Godunko, Roman J. & Japoshvili, Bella, 2018, The first annotated checklist of mayflies (Ephemeroptera: Insecta) of Georgia with new distribution data and a new record for the country, Turkish Journal of Zoology 42 (2), pp. 252-262 : 255-256

18. Baetis (Rhodobaetis) gemellus Eaton, 1885

Distribution in Georgia: Racha-Lechkumi, Samegrelo-Svaneti, Samtskhe-Javakheti, Shida Kartli, Kvemo Kartli, Mtskheta-Mtianeti, Kakheti ( Zimmermann, 1981); Abkhazia ( Palatov and Sokolova, 2015; Chertoprud et al., 2016).

Note: Confusing species, original description based on adult stage from the Alps and Apennines (Eaton, 1885). Material used for the description of the larval stage in Müller-Liebenau (1969) was later ( Thomas, 1999) established as a different species, Baetis gadeai Thomas, 1999 . Thus, the larva of B. gemellus remains unknown and conspecificity of any (especially larval) material identified as B. gemellus from Georgia with adult material described as B. gemellus by Eaton (1885) is highly doubtful.

Most probably some data from Georgia (as well as from the whole Caucasus) are confused with B. braaschi (see Palatov, 2013).