Sex Role–Dependent Behavioral and Architectural Divergence in a Jumping Spider

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  Sex Role–Dependent Behavioral and Architectural Divergence in a Jumping Spider ABSTRACT Sex differences in behavior and functional traits are often attributed to differences in mating effort intensity, but the role of sex-specific parental demands remains poorly understood. Using the jumping spider Toxeus maxillosus —where males engage in mate searching and courtship without providing parental care, while females provide extended maternal care from egg attendance to offspring maturity (around 3 months)—we conducted an exploratory investigation into whether these distinct selective pressures led to divergence in spatial behaviors and nest architecture. Results revealed that males and females showed equivalent accuracy, latency, and learning-related performance in both a route-planning test under water stress and a color-pattern associative memory task. In contrast, during nest-construction assays, females built complex, multi-entrance structures that closely matched the container'...

First report of a Tailless Whip Scorpion in Cyprus: the case of Sarax ioanniticus (Kritscher, 1959) (Amblypygi, Charontidae)

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First report of a Tailless Whip Scorpion in Cyprus: the case of Sarax ioanniticus (Kritscher, 1959) (Amblypygi, Charontidae)


Background

Amblypygi, commonly known as tailless whip scorpions or whip spiders, is an order of Arachnida noted for its cryptic habits and predominantly tropical and subtropical distribution. Although the group was first mentioned on the island of Cyprus in 1990, no specific taxonomic information was provided at the time.

New information

Through a combination of literature review, targeted field surveys and citizen-science contributions, we confirm the presence of Sarax ioanniticus (Kritscher, 1959) in Cyprus, representing the first documented record of this species on the island. Following seven years of dedicated searches, a live specimen was collected in 2023 and identified, thereby establishing S. ioanniticus as part of the island’s rich fauna. This finding extends the known range of S. ioanniticus within the eastern Mediterranean and underscores the importance of integrating biodiversity research with public engagement to detect elusive or under-reported taxa. Future studies should investigate the species’ local distribution, ecological requirements and potential conservation concerns on Cyprus.


Hadjiconstantis M, Smith M, Zoumides C (2025) First report of a Tailless Whip Scorpion in Cyprus: the case of Sarax ioanniticus (Kritscher, 1959) (Amblypygi, Charontidae). Biodiversity Data Journal 13: e157478. https://doi.org/10.3897/BDJ.13.e157478