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Abstract <p>A new species of bristletails, <i>Allopsontus stepposus</i> 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 <i>A. tauricus</i> 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.</p>

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

  • 期刊论文

  • 发表日期：

    2025年7月18日

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  • V. G. Kaplin

摘要

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.