Erranticosa gen. nov.: a New Genus of Wolf Spiders from East Asia with Notes on its Separation from Lycosa and Hogna (Araneae Lycosidae: Lycosinae)

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  Erranticosa gen. nov.: a New Genus of Wolf Spiders from East Asia with Notes on its Separation from Lycosa and Hogna (Araneae Lycosidae: Lycosinae) Abstract The taxonomy and systematic position of the Eastern Asian wolf spider Lycosa coelestis L. Koch, 1878 are revised using an integrative approach. Our study highlights distinctive morphological and molecular differences that separate this species from the generotypes of Lycosa Sundevall,1833 and Hogna Simon, 1885, to which L. coelestis was previously assigned. Based on these findings, we establish a new monotypic genus, Erranticosa gen. nov., to accommodate this species, namely E. coelestis comb. nov. We also discuss the results of a preliminary molecular phylogenetic analysis of the subfamily Lycosinae, including Erranticosa gen. nov. Additionally, based on morphological examination of the type material, we reject the synonymy of Lycosa subcoelestis Fox, 1935 with E. coelestis comb. nov., transferring it to Trochosa C.L. Koch, ...

Does size matter? Reports of cannibalism in scorpions (Scorpiones: Buthidae) from Turkey

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Does size matter? Reports of cannibalism in scorpions (Scorpiones: Buthidae) from Turkey

Short Communication

Cannibalism is a phenomenon where one individual kills and consumes another of its own species, often arising during conflicts related to survival or reproduction (e.g., Persson et al. 2000, DeVore et al. 2021). Early authors have suggested that this mechanism regulates and controls the predator population size, facilitating their survival during prey scarcity (Elgar & Crespi 1992, Wise 2006, Oliveira et al. 2022). As potential competition decreases, resources such as food, shelter, and territory become more readily available. Therefore, cannibalism may result from high population density and/or strong intraspecific competition for prey resources (Davison et al. 2020). 

Yağmur, Ersen & Lira, André & Kurt, Rıdvan & Tezcan, Erman & Kartal, İbrahim & Sipahioğlu, Özgün. (2025). Does size matter? Reports of cannibalism in scorpions (Scorpiones: Buthidae) from Turkey.. 21. 90-92.