Abstract
Morphological sexual dimorphism occurs in most insect species. Caves are relatively independent habitats with high levels of endemic insect species. The cave crickets are one of the most common insects in many caves and play an important role in the nutrient cycling of cave ecosystems. Sexual difference in sensilla has rarely been studied in cave crickets. We explore the types, number, and distribution of sensilla on the labial palps of both sexes of the cave cricket Tachycines plumiopedella Li, Feng & Luo, 2021 for the first time. Seven sensilla types were recorded on the labial palps in both sexes, including sensilla chaetica (Sc. 1–2), sensilla trichodea (St. 1–3), sensilla palmatum (Sp), Böhm bristles (Bb), sensilla campaniformia (Sca), sensilla basiconica (Sb. 1–3), and sensilla coeloconica (Sco. 1–2). The sensilla are mostly situated on the third palpomere of the labial palps, particularly on its middle to end part. Of sensilla on the labial palps, types and distribution were similar in males and females, but different in length, diameter, and number. The potential functional roles of sensilla were discussed.
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Acknowledgements
We sincerely thank Ben Hong and Bing Li (Guizhou University) for their valuable help in collecting insects. We are especially grateful to Xueli Feng (Guizhou University) for her help in the identification of insects.
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This work was supported by the National Natural Science Foundation of China (Grant No. 32060110, No. 31702045).
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Conceptualization and methodology: CL, SH; software: CL, KY; validation: CL, KY; formal analysis: KY; investigation: KY and SH; resources: CL; data curation: KY; writing—original draft preparation: KY; writing—review and editing: CL, SH; visualization: KY; supervision: CL; project administration: CL; funding acquisition: CL. All authors have read and agreed to the published version of the manuscript.
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Yin, K., Huang, S. & Luo, C. Sensilla on the labial palps of the cave species Tachycines plumiopedella Li, Feng & Luo, 2021 (Orthoptera: Rhaphidophoridae). Zoomorphology 142, 169–179 (2023). https://doi.org/10.1007/s00435-023-00594-8
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DOI: https://doi.org/10.1007/s00435-023-00594-8