Homotypic assortative mating is consistent across temporal scales in the spider Mecynogea lemniscata (Araneidae)

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Homotypic assortative mating is consistent across temporal scales in the spider Mecynogea lemniscata (Araneidae) Abstract Identifying patterns of size-assortative mating (SAM) indicates the direction of genetic changes in a population. A reliable method for estimating it in a population is to measure mate assortments within and between breeding seasons¸ as well as describing size variation of males and females between temporal scales to avoid Simpson’s paradox. We assessed sexual size dimorphism, the effects of ontogeny, size differences within each sex, the consistency of SAM within and between seasons, and male mate choice in the spider  Mecynogea lemniscata . We collected mating pairs in a  Eucalyptus  plantation across two breeding seasons and in four periods of the second season. We measured body mass and carapace width of spiders. Males matured earlier than females and guarded subadult partners. Although adults were larger and heavier than subadults, ontogeny did no...

A redescription of Leiurus libycus (Birula, 1908), stat. n. (Scorpiones: Buthidae)

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A redescription of Leiurus libycus (Birula, 1908), stat. n. (Scorpiones: Buthidae)

Abstract


Buthus quinquestriatus libycus was described by Birula (1908) from the Libyan Desert, based on a subadult male specimen. This taxon was later synonymized with Leiurus quinquestriatus (Ehrenberg, 1828) by Vachon (1949). In this study, we re-evaluate this taxon and recognize it as Leiurus libycus (Birula, 1908), stat. n., providing a redescription based on the holotype. The type locality of this species is clarified as western Egypt (between Alexandria and Fayum). We synonymize Leiurus aegyptiacus Lourenço & El-Hennawy, 2021 with L. libycus, stat. n., syn. n.

Yağmur, E. A., Kovařík, F., & Fet, V. 2025 . A redescription of Leiurus libycus (Birula, 1908), stat. n. (Scorpiones: Buthidae). Euscorpius, No. 413: 1-8. https://mds.marshall.edu/euscorpius/vol2025/iss413/1/