Bioacoustics of Philodromus paiki

Comments. This species is easily confused with P. spinitarsis due to its similar genital morphology. Jang et al. (2024 a ) described it as a new species based on specimens from Korea and pointed out that previous records of P. spinitarsis in Korea in multiple studies were likely misidentifications, most of which should be attributed to P. paiki . It appears that many records of P. spinitarsis in Chinese literature may also be misidentifications. However, since we have not examined the original specimens, our study is currently based on materials from Guizhou and Hubei provinces. Long et al. (2022) reported P. spinitarsis as a new record for Guizhou Province based on specimens from Guiyang City but did not provide diagnostic illustrations. Upon re-examining the specimens from Long et al. (2022) , we determined that they should all belong to P. paiki . Therefore, there is currently no confirmed record of P. spinitarsis in Guizhou . The newly available specimens indicate that this species is also distributed in Fanjingshan National Nature Reserve, Guizhou Province (Fig. 23 A ). Several studies have recorded the presence of P. spinitarsis in Hubei , such as Zhao (1993) , Song and Zhu (1997) , Song et al. (1999) , Zhu and Zhang (2011) , Yin et al. (2012) , Zhang et al. (2022) , but did not provide specific distribution points or coordinates. Additionally, the diagnostic illustrations provided are relatively crude and were not based on specimens from Hubei . Therefore, the reported distribution of P. spinitarsis in Hubei remains questionable. Our various field trips in Hubei have not yielded any P. spinitarsis specimens. In contrast, paired specimens of P. paiki were obtained from Jiugongshan National Nature Reserve (Fig. 23 B ). This paper represents the first formal report of the distribution of P. paiki in Hubei Province .