Rhopalopsole gibba Yang & Du 2025, sp. nov.
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| author | Yang, Xiao Du, Yu-Zhou |
| author_facet | Yang, Xiao Du, Yu-Zhou |
| contents | <p><i>Rhopalopsole gibba</i> Yang & Du sp. nov.</p><p><b>Description.</b></p><p><b>Male.</b> Body length 5.7–5.9 mm. Forewing length 5.4–5.5 mm, hindwing length 4.2–4.3 mm. Head dark brown, wider than pronotum; ocelli pale brown; antennae and palpi light brown. Pronotum brown, quadrate. Legs brown. Wings hyaline and veins light brown (Fig. 1).</p><p>Tergum 9 mostly sclerotized, somewhat less so on median circular area with two strong sclerotized marks. Sternum 9 basally with subcircular vesicle bearing dense hairs, apically with a comparatively longer subgenital plate. Tergum 10 bearing a large central plate covered laterally with macrotrichia and a mammillary process on both sides; middle strongly sclerotized part of the central plate with small round field of knobs. Transverse plates nearly triangular and less hairy with some seta. Lateral projections of tergum 10 long and sinuous. Epiproct thick at base, not tapering appreciably along its length ending in a downcast point. Subanal lobes large, narrow at base expanding distally, then narrowing to end. Cercus hairy and upcurved, with a small spine (Fig. 2).</p><p><b>Female.</b> Unknown.</p><p><b>Egg and nymph.</b> Unknown.</p><p><b>Type materials.</b></p><p><i>Holotype</i>: • ♂, China: Anhui Province, Xuancheng City, Yaocun town, alt. 726 m, 30°53'24"N, 119°6'30"E, 2024-VI-13, leg. Huo Qing-bo and Zeng Liang-liang (Fig. 3). <i>Paratypes</i>: • 4 ♂♂, same data as holotype.</p><p><b>Etymology.</b></p><p>The species name refers to the central plate with a small round field of <i>gibba</i> at the middle of the tergum 10.</p><p><b>Diagnosis and remarks.</b></p><p>The new species, <i>Rhopalopsole gibba</i>, is similar to members of the <i>R. dentata</i> group (Sivec et al. 2008), particularly <i>Rhopalopsole dicondylica</i> Yang & Du, 2021. The males share the similar shape of epiproct and the shape of the subanal lobes. In <i>R. gibba</i>, the cercus is hairy and upcurved, with a small spine and tergum 10 bears a large central plate covered laterally with macrotrichia and there is a mammillary process on both sides; the middle strongly sclerotized part of the central plate with small round field of knobs. However, in <i>R. dicondylica</i>, the cerci lack spines and the hind border of tergum 10 bears a large central plate covered laterally with microtrichia, and there is a mammillary process on both sides; the middle poorly sclerotized part of the central plate is triangular and rounded apically (Fig. 2).</p> |
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| id | zenodo_https___doi_org_10_5281_zenodo_15837740 |
| institution | Zenodo |
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| publishDate | 2025 |
| publisher | Zenodo |
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| spellingShingle | Rhopalopsole gibba Yang & Du 2025, sp. nov. Yang, Xiao Du, Yu-Zhou Biodiversity Taxonomy Animalia Arthropoda Insecta Plecoptera Leuctridae Rhopalopsole Rhopalopsole gibba <p><i>Rhopalopsole gibba</i> Yang & Du sp. nov.</p><p><b>Description.</b></p><p><b>Male.</b> Body length 5.7–5.9 mm. Forewing length 5.4–5.5 mm, hindwing length 4.2–4.3 mm. Head dark brown, wider than pronotum; ocelli pale brown; antennae and palpi light brown. Pronotum brown, quadrate. Legs brown. Wings hyaline and veins light brown (Fig. 1).</p><p>Tergum 9 mostly sclerotized, somewhat less so on median circular area with two strong sclerotized marks. Sternum 9 basally with subcircular vesicle bearing dense hairs, apically with a comparatively longer subgenital plate. Tergum 10 bearing a large central plate covered laterally with macrotrichia and a mammillary process on both sides; middle strongly sclerotized part of the central plate with small round field of knobs. Transverse plates nearly triangular and less hairy with some seta. Lateral projections of tergum 10 long and sinuous. Epiproct thick at base, not tapering appreciably along its length ending in a downcast point. Subanal lobes large, narrow at base expanding distally, then narrowing to end. Cercus hairy and upcurved, with a small spine (Fig. 2).</p><p><b>Female.</b> Unknown.</p><p><b>Egg and nymph.</b> Unknown.</p><p><b>Type materials.</b></p><p><i>Holotype</i>: • ♂, China: Anhui Province, Xuancheng City, Yaocun town, alt. 726 m, 30°53'24"N, 119°6'30"E, 2024-VI-13, leg. Huo Qing-bo and Zeng Liang-liang (Fig. 3). <i>Paratypes</i>: • 4 ♂♂, same data as holotype.</p><p><b>Etymology.</b></p><p>The species name refers to the central plate with a small round field of <i>gibba</i> at the middle of the tergum 10.</p><p><b>Diagnosis and remarks.</b></p><p>The new species, <i>Rhopalopsole gibba</i>, is similar to members of the <i>R. dentata</i> group (Sivec et al. 2008), particularly <i>Rhopalopsole dicondylica</i> Yang & Du, 2021. The males share the similar shape of epiproct and the shape of the subanal lobes. In <i>R. gibba</i>, the cercus is hairy and upcurved, with a small spine and tergum 10 bears a large central plate covered laterally with macrotrichia and there is a mammillary process on both sides; the middle strongly sclerotized part of the central plate with small round field of knobs. However, in <i>R. dicondylica</i>, the cerci lack spines and the hind border of tergum 10 bears a large central plate covered laterally with microtrichia, and there is a mammillary process on both sides; the middle poorly sclerotized part of the central plate is triangular and rounded apically (Fig. 2).</p> |
| title | Rhopalopsole gibba Yang & Du 2025, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Plecoptera Leuctridae Rhopalopsole Rhopalopsole gibba |
| url | https://doi.org/10.5281/zenodo.15837740 |