A pseudoscorpion clinging to a cave salamander: phoresy or failed predation?

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  A pseudoscorpion clinging to a cave salamander: phoresy or failed predation? Abstract Pseudoscorpions are well known for phoretic associations with arthropods, but interactions with amphibians are rarely documented. Here we report a pseudoscorpion attached to the left palpebral region of an adult male Italian cave salamander, Speleomantes italicus , observed during a visual survey in a karst cave in Tuscany, Italy. The pseudoscorpion, assigned on the basis of visible morphology and locality to Chthonius cf. elongatus , was grasping a minute cutaneous fold on the lower margin of the left upper eyelid with one chela while the salamander moved slowly over the rock surface. No handling was performed and the initial contact between the two animals was not observed. The event therefore cannot be interpreted unambiguously, but may represent opportunistic phoresy or defensive attachment following a failed predation attempt. To our knowledge, this is the first published observation of a ...

New data on Indian nursery-web spiders (Araneae: Pisauridae)

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New data on Indian nursery-web spiders (Araneae: Pisauridae)

Abstract

Updated data on Indian nursery-web spiders of the genera Dendrolycosa Doleschall, 1859, Euprosthenops Pocock, 1897, Hygropoda Thorell, 1895a, Perenethis L. Koch, 1878, and Polyboea Thorell, 1895b are presented here. The following new synonymy is recognised: Dendrolycosa bobbiliensis (Reddy & Patel, 1993) syn. nov. is synonymised with D. robusta (Thorell, 1895). The validity of Dendrolycosa gitae (Tikader, 1970), D. sahyadriensis Sudhin, Sen & Jäger, 2023, and D. stauntoni Pocock, 1900 is discussed. The possible synonymy of Dendrolycosa sahyadriensis with D. gitae, as well as that of D. gitae with D. spadicaria (Simon, 1897a), and Polyboea zonaformis (Wang, 1993) with P. vulpina Thorell, 1895 are discussed. Euprosthenops ellioti (O. Pickard-Cambridge, 1877) is redescribed and illustrated based on its type material, and the vulva of the genus is illustrated for the first time. A lectotype is designated for Hygropoda gracilis (Thorell, 1891), which is redescribed based on the type and freshly collected material. A new species, Hygropoda kannimara Sankaran sp. nov. is described and illustrated based on male and female specimens collected from the southern Indian state of Kerala. Redescriptions of Perenethis sindica (Simon, 1897) and P. vulpina based on freshly collected material are provided, and doubt is cast on the possible synonymy of the former species with P. venusta L. Koch, 1878. Finally, discusion about the type locality of Perenethis dentifasciata (O. Pickard-Cambridge, 1885) is presented.

Sankaran, P.M., Abraham, A., Williams, S.H. & Asima, A. (2026) New data on Indian nursery-web spiders (Araneae: Pisauridae). Zootaxa, 5757 (1), 1–25. https://doi.org/10.11646/zootaxa.5757.1.1