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'...

The spider wasp family Pompilidae (Hymenoptera: Aculeata: Pompiloidea) in Uzbekistan: annotated checklist with first faunal records

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By Christina Butler from Georgia, United States - Ceropales maculata, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=95892530

The spider wasp family Pompilidae (Hymenoptera: Aculeata: Pompiloidea) in Uzbekistan: annotated checklist with first faunal records

This paper presents, for the first time, a review of the fauna of spider wasps (Pompilidae) of Uzbekistan. The review includes 132 species and 1 subspecies, 4 species undetermined to species level (sp.), belonging to 28 genera, 8 tribes, and 3 subfamilies recorded within the territory of Uzbekistan. The data are based on published literature and materials collected during 1909-1978, which are preserved in the Entomological Collection of the State Museum of Nature of Uzbekistan. Among these, 9 species are recorded for the first time for the fauna of Uzbekistan, namely: Cryptocheilus (Cryptocheilus) alternatus caspius Gussakovskij, 1952; Priocnemis (Priocnemis) minuta (Vander Linden, 1827); Priocnemis (Umbripennis) gypsochtona Gussakovskij, 1930; Tachyagetes (Tachyagetes) excellens (Haupt,1930); Arachnospila (Ammosphex) trivialis (Dahlbom, 1843); Arachnospila (Arachnospila) binaeva Haupt, 1930; Arachnospila (Arachnospila) rufa (Haupt, 1927); Paracyphononyx pavlovskyi Gussakovskij, 1952; Arachnotheutes rufithorax (Costa, 1882). 

Lebedeva, N. I., Akhmedov, A. G., Mirzaeva, G. S., Musaev, D. M., Nazarov, S. N., Azamov, M. S., Abdullaeva, M. I., Kholmirzayeva, A. A., & Hudoyberdieva, M. O. (2026). The spider wasp family Pompilidae (Hymenoptera: Aculeata: Pompiloidea) in Uzbekistan: annotated checklist with first faunal records. Acta Biologica Sibirica, 12, 59–84. https://doi.org/10.5281/zenodo.18310226