Three new species of bristletails of the families Meinertellidae and Machilidae (Archaeognatha) from Ukraine and Southern Russia
Kaplin Vladimir, Martynov Vladimir
Acta Entomologica Musei Nationalis Pragae 60(2): 463-474, 2020
Published online: 5th August 2020
Views: 2216
Abstract: Two new species of Machilinus Silvestri, 1905 (M. petrophilus Kaplin, sp. nov.,
M. obscurus Kaplin, sp. nov.) from Ukraine and one new species of Charimachilis
Wygodzinsky, 1939 (C. rostoviensis Kaplin sp. nov.) from Southern Russia are
described. The new species of Machilinus belong to the subgenus Machilinus s.
str. with 1 + 1 eversible vesicles on urocoxites II–VII, and urostyli with
apical spines; to the group “rupestris” with 2nd and 3rd articles of male
maxillary palpus without ventral spines (M. obscurus sp. nov.), and with spines
on these articles (M. petrophilus sp. nov.). Machilinus petrophilus sp. nov.
differs from M. rocai Bach, 1975 in the color and ratio of length to width of
compound eyes, the presence of numerous short chaetae on the clypeus, the
structure of the lateral apophysis on the 2nd article of the male maxillary
palpus, and the number of ventral spines on the legs. Machilinus obscurus sp.
nov. differs from the other species of the group “rupestris” in the color of
compound eyes, the presence of numerous short chaetae on the male frons and
clypeus, and in other features. Charimachilis rostoviensis sp. nov. (Machilidae)
most closely resembles C. ukrainensis Stach, 1958. Charimachilis rostoviensis
sp. nov. differs from C. ukrainensis in the shape of posterior angle of
urosternites, and ratios of lengths of urostyli and urocoxites.
Key words: Archaeognatha, Microcoryphia, Meinertellidae, Machilidae, Machilinus,
Charimachilis, new species, taxonomy, Russia, Ukraine, Palaearctic Region
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