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In Memoriam: Giraldo Alayón García

  In Memoriam: Giraldo Alayón García -  Photo © Facebook/National Museum of Natural History of Cuba In Memoriam: Giraldo Alayón García The arachnological community mourns the loss of Giraldo Alayón García, a Cuban zoologist whose work helped bring the spiders of Cuba and the wider Caribbean into clearer scientific view. As a researcher and curator at Cuba’s National Museum of Natural History, Dr. Alayón devoted decades to studying arachnids. His publications on spider taxonomy, evolution, and biogeography gave other researchers a stronger foundation for understanding the region’s biodiversity. He also shared that knowledge through teaching and scientific exchange far beyond Cuba. For those of us who care about taxonomy, his legacy is a reminder of the patient work behind every species description: examining specimens, recording differences, and preserving knowledge that others can build upon. His contributions will continue to guide the study of Caribbean spiders for years to ...

The first genus with four sac-like structures in the vulva in the cobweb spider subfamily Theridiinae Sundevall, 1833 (Araneae: Theridiidae)

A new species of Urupelma Kaderka et al. 2023 from Peru (Araneae, Theraphosidae, Theraphosinae), and a new proposal of homologous keels

Phase response curve and RNA-sequencing demonstrate spiders’ sensitivity to light and pinpoint candidate light-responsive genes

The Arachnological Collection (Chelicerata, Arachnida) at the Federal University of Bahia, Brazil: taxonomic status, temporal patterns, geographic coverage and data availability

Novel Biochemical Findings from Bothrops marajoensis Venom

The Asian Dragon Puzzle: how multiple dispersal events have shaped the evolutionary history of Eastern Asian dragon pseudoscorpions (Arachnida: Pseudoscorpiones: Allochthonius)

New records and invasion risk of Stenochrus portoricensis Chamberlin, 1922 (Schizomida: Hubbardiidae) in Brazil

Distribution of scorpions (arachnida: scorpiones) according to inaturalist observations in Panama

Targeting snake venom metalloproteinases: structural diversity, molecular pathogenesis and therapeutic interventions

Taxonomy Takes Time: Shortcuts to Synonymy

Revision of Bermejoa panguana Portela & Ríos-Tamayo 2025 and Vitriemboli herzogi (Gabriel, Sherwood & Pérez-Miles 2023) (Araneae, Theraphosidae, Theraphosinae)

Venom Before Specialisation? A Layered Assessment of Early Venom Evolution in Lizards and Snakes

Scorpio basraensis sp. n. from southern Iraq (Scorpiones: Scorpionidae)

Fundamental Niche Conservatism in the Geographic-Range-Expanding Specialist Zodarion rubidum (Zodariidae, Araneae)

Venom Mass Fingerprints for Species Delimitation, Reloaded: A Test Case with Italian Scorpions (Euscorpius)