Allopsontus stepposus sp. n., a New Species of Bristletails (Microcoryphia, Machilidae) from the Western Coast of Crimea

A new species of bristletails, Allopsontus stepposus sp. n., is described from the western Crimea. In the structure of the antennal flagella, the chaetotaxy of the maxillary and labial palps, the sensory field on the fore femora, the abdominal sternites and parameres, it seems to be especially similar to A. tauricus Kaplin 2024, described from a nearby area in western Crimea. These two species are clearly distinguished by the pattern formed by differently colored scales on the dorsal side of the abdomen, as well as the color and shape of the paired ocelli. The species also differ in the width to length ratio of the paired ocelli, the structure of the 3rd article of the labial palp, and the size of the apical angle of the abdominal sternites.

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Publication Details

Journal
Biology Bulletin
Published
2025-07-18
DOI
https://doi.org/10.1134/s1062359025700050
Primary Topic
Marine and environmental studies
Type
article
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article

Allopsontus stepposus sp. n., a New Species of Bristletails (Microcoryphia, Machilidae) from the Western Coast of Crimea

В. Г. Каплин
Biology Bulletin
Marine and environmental studies
article

Allopsontus stepposus sp. n., a New Species of Bristletails (Microcoryphia, Machilidae) from the Western Coast of Crimea

В. Г. Каплин
article en

Abstract

A new species of bristletails, Allopsontus stepposus sp. n., is described from the western Crimea. In the structure of the antennal flagella, the chaetotaxy of the maxillary and labial palps, the sensory field on the fore femora, the abdominal sternites and parameres, it seems to be especially similar to A. tauricus Kaplin 2024, described from a nearby area in western Crimea. These two species are clearly distinguished by the pattern formed by differently colored scales on the dorsal side of the abdomen, as well as the color and shape of the paired ocelli. The species also differ in the width to length ratio of the paired ocelli, the structure of the 3rd article of the labial palp, and the size of the apical angle of the abdominal sternites.

Biology BulletinVol. 52(4)
All-Russian Institute of Plant Protection (RU)
Life below water
Openalex Percentile: Top 79%
Marine and environmental studies
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