Abstract
A new dipluran species, Plusiocampa (Plusiocampa) imereti Sendra & Barjadze sp. nov., from the deep zone in three caves in the Imereti region, Georgia, is described. This new troglobitic Plusiocampa is an addition to four others known Diplura from around the Black Sea region, two Dydimocampa and two Plusiocampa s. str. The present study also provides the first CO1 sequences for the Plusiocampinae taxa and the first molecular data for cave-dwelling Plusiocampa species. Although bootstrap values were low, the maximum-likelihood phylogenetic tree grouped Plusiocampa (P.) imereti Sendra & Barjadze sp. nov. with two Plusiocampa s. str. species from Eastern Europe. Morphologically, P. (P.) imereti Sendra & Barjadze sp. nov. is closely related to two cave-dwelling species: Plusiocampa (Plusiocampa) glabra Condé, 1984 and Plusiocampa (P.) chiosensis Sendra & Gasparo, 2020. The new species can be distinguished by the presence of lateral anterior macrosetae on metanotum, more uneven claws, and the presence of 2+2 lateral anterior macrosetae on middle urotergites. The five species currently known for the Black Sea region inhabit caves located at low altitude but with no influence from former glacial or permafrost processes.
Highlights
Plusiocampa Silvestri, 1912 is a relatively well-known genus of the subfamily Plusiocampinae, part of the most diverse family of Diplura (i.e., Campodeidae Lubbock, 1873; Sendra et al 2021a)
A new dipluran species, Plusiocampa (Plusiocampa) imereti Sendra & Barjadze sp. nov., from the deep zone in three caves in the Imereti region, Georgia, is described. This new troglobitic Plusiocampa is an addition to four others known Diplura from around the Black Sea region, two Dydimocampa and two Plusiocampa s. str
The present study provides the first CO1 sequences for the Plusiocampinae taxa and the first molecular data for cave-dwelling Plusiocampa species
Summary
Plusiocampa Silvestri, 1912 is a relatively well-known genus of the subfamily Plusiocampinae, part of the most diverse family of Diplura (i.e., Campodeidae Lubbock, 1873; Sendra et al 2021a). Four species of Plusiocampa are already known from caves around the Black Sea, at the western side in the well-known Movile Cave in Dobroudja (Condé 1993, 1996); caves from the Crimean Peninsula in the north (Silvestri 1949; Sendra et al 2020a), and a cave near the Abkhazia coast in the east (Sendra et al 2020a). Collected specimens of Plusiocampa, found in three caves in the Imereti Plateau (Georgia), have allowed us to describe one more species using morphological and, for the first time, molecular data. The present study contributes the first CO1 sequences for Plusiocampinae taxa and the first molecular data for cave-dwelling species of Plusiocampa
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