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| Format: | Recurso digital |
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Zenodo
2025
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| Hasła przedmiotowe: | |
| Dostęp online: | https://doi.org/10.5281/zenodo.14866313 |
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- <p><b>Genus</b></p><i>Sphaerobelum</i>Verhoeff, 1924<p><b>Type species.</b></p><p><i>Sphaerobelum clavigerum</i> Verhoeff, 1924, by subsequent designation of Jeekel (1971: 28).</p><p><b>Other species included.</b></p><p>26 species (plus three described below: Verhoeff 1924; Attems 1938, 1953; Wongthamwanich et al. 2012; Semenyuk et al. 2018, 2020; Wesener 2019; Zhao et al. 2020, 2022; Rosenmejer et al. 2021; Bhansali and Wesener 2022; Srisonchai et al. 2023).</p><p><b>Distribution.</b></p><p>China (3 species), Laos (10 species), Thailand (7 species), and Vietnam (7 species).</p><p><b>Diagnosis.</b></p><p>A genus of Zephroniinae in which the posterior telopod has 4 telopoditomeres distal to the syncoxite, immovable finger apically uniquely enlarged and massively swollen (except for <i>S. aesculus</i>, <i>S. meridionalis</i>, and <i>S. benqii</i>, in which there is just a swollen spot). Anterior telopod either with 3 or 4 podomeres distal to syncoxite, with podomeres 3 and 4 simple, either completely fused, partly fused, or completely separated.</p><p>See more detail of diagnosis in Wongthamwanich et al. (2012), Wesener (2016), Semenyuk et al. (2018), and Srisonchai et al. (2024 b).</p><p><b>Remarks.</b></p><p>Wesener (2019) divided the genus into two main groups based on the modification of the mesal margin of the leg femur. The first group consists of species with either a flat margin or inconspicuous tiny teeth (hardly visible under a stereomicroscope); here, we refer to this as the ‘ unmodified femur. ’ The second group, the ‘ modified femur, ’ includes species with conspicuous teeth along the margin (easily visible under a normal stereomicroscope).</p><p>In Thailand, four previously recorded species (<i>S. aesculus</i>, <i>S. meridionalis</i>, <i>S. truncatum</i>, and <i>S. turcosa</i>), as well as the three new species described here, are assigned into the ‘ unmodified femur’ group, characterised by no or only inconspicuous teeth on the femur of the leg.</p>