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 ...

Two new species of cribellated spider for Colombia (Araneae: Macrobunidae Bonnet, 1957)


Two new species of cribellated spider for Colombia (Araneae: Macrobunidae Bonnet, 1957)

Abstract

The Macrobunidae family is poorly represented in Colombia, with only the genus Retiro Mello-Leitão, 1915, and the species Retiro granadensis (Keyserling, 1878). This paper describes and illustrates two new species of this genus: Retiro sabatoi sp. nov. (♂♀) and Retiro leonardi sp. nov. (♂♀) found in central-western Colombia, in the department of Quindío.

Rodríguez-Castro, G. & Rodríguez, E. (2025). Two new species of cribellated spider for Colombia (Araneae: Macrobunidae Bonnet, 1957). Zootaxa 5683(4): 561-572. doi:10.11646/zootaxa.5683.4.6