A new species of bristletails of the genus Silvestrichilis (Archaeognatha: Machilidae) from the Krasnodar Province (Russia)
V.G. Kaplin
Abstract. Silvestrichilis markotchiensis sp. nov. is described from the northwestern Caucasus (Markotkh Mountain Range). This species is characterised by the two-coloured compound eyes, which are gray with brown spots. Based on this character, it belongs to a group of species that includes S. caucasica Kaplin, 2015, S. golovatchi Kaplin, 1990, S. polinae Kaplin, 2018, S. stepposa Kaplin, 2022, and S. zazimkoi Kaplin, 2007. Members of this group display activity during the morning, evening, and twilight hours. Silvestrichilis markotchiensis sp. nov. is distinguished from other species in this group by the longest cerci, the narrowest paired ocelli, the ratio of lengths of the apical and preapical segments of the maxillary palps, the presence of numerous long, thin setae on the segments of the labial palps and on the fore and middle femora, the structure of the sensory field on the fore femur, and the ratio of the lengths of the urostyli and urocoxites VIII and IX in males.
Key words: Northwestern Caucasus, Markotkh Mountain Range, taxonomy, morphology, new species
Zoosystematica Rossica, 2024, 33(2): 339–345 ▪ Published online 18 December 2024
https://doi.org/10.31610/zsr/2024.33.2.339 ▪ Open full article 
References
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Kaplin V.G. 2019. A new species of bristletails of the genus Silvestrichilis Wygodzinsky, 1950 (Archaeognatha: Machilidae) from South China. Far Eastern Entomologist, 376: 23–28. https://doi.org/10.25221/fee.376.3
Kaplin V.G. & Martynov V.V. 2022. Two new species of bristletails from the families Meinertellidae and Machilidae (Microcoryphia) from the Khomutovskaya Steppe Nature Reserve (Northern Near-Azov region). Zoologicheskii Zhurnal, 101(9): 975–984. https://doi.org/10.31857/S0044513422090057 (In Russian; English translation: Entomological Review, 102(8): 1141–1151. https://doi.org/10.1134/S0013873822080097).
Kaplin V.G. 2023. New species of bristletails of the family Machilidae (Microcoryphia) from Tajikistan. Zoologicheskii Zhurnal, 102(7): 776–789. https://doi.org/10.31857/S0044513423060077 (In Russian; English translation: Biology Bulletin, 50(9): 2238–2250. https://doi.org/10.1134/S1062359023090121).
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