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

  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 ...

A new species of Theridion Walckenaer, 1805 (Araneae, Theridiidae) from Ganjiangyuan National Nature Reserve, southern China

 


A new species of Theridion Walckenaer, 1805 (Araneae, Theridiidae) from Ganjiangyuan National Nature Reserve, southern China

Abstract

Background

The genus Theridion Walckenaer, 1805 comprises 577 species, distributed all over the world and it is common in habitat species, such as grasses, barks and deciduous layers.

New information

A new cobweb species, Theridion ganjiangyuan Zhou, sp. nov., is described from the Ganjiangyuan National Nature Reserve, in Jiangxi Province, China. A detailed description, diagnosis, illustrations and a distribution map of the new species are provided.


Tan M, Xu K, Zhou G (2026) A new species of Theridion Walckenaer, 1805 (Araneae, Theridiidae) from Ganjiangyuan National Nature Reserve, southern China. Biodiversity Data Journal 14: e182063. https://doi.org/10.3897/BDJ.14.e182063