Abel Pérez González

Biólogo, aracnólogo, espeleólogo, buzo & fotógrafo. Investigador y Curador Asociado en la División Aracnogía del Museo Argentino de Ciencias Naturales (MACN)

[Abel Pérez González @abelaracno]

Today, I saw my humble tribute to Stefan Hendrik Foord (1971-2023) materialize in the best way possible: the publication of a new species of the African arachnofauna named after him (@AI_Journal). Live forever in this incredible opilionid, my dear friend! https://t.co/vzpKpw5pag

[Abel Pérez González @abelaracno]

Una telaraña con propiedades excepcionales podría revolucionar el diseño de materiales https://t.co/W9LxQSZH77

[Abel Pérez González @abelaracno]

New paper out! https://t.co/bx1SbwuJa4
We revise South American triaenonychids formerly placed in Ceratomontia and propose the new genus Maurymontia, honoring Emilio Maury.
Three new species described, incl. M. grismadoi.
Happy New Year! 🎉

[Dr. Ivan Magalhaes 🕷️ @6eyes8legs]

The holotype of Maurymontia mborore, a new genus and species of Triaenonychidae recently described by my friends and colleagues Williams Porto and @abelaracno. From Misiones, Argentina. We found a single male in a rocky area within the subtropical woodlands by sifting litter.

[ldvn @mastigusa]

It's been a while lol

Peltonychia sarea, a very rare endemic Laniatorid from the karstic networks in the French Basque Country.

[35th European Congress of Arachnology @35thECA2025]

Arachnid of the week is Troglochthonius doratodactylus Helversen, 1968

[Abel Pérez González @abelaracno]

We are pleased to share our traditional report on the new genera and species described by the staff of MACN during 2024 (more precisely, between December 2023 and November 2024). You can download it from the link at the bottom of this post.

https://t.co/sauaWzdo18

[Adrià Bellvert @AdriaBellvert]

Paper out🕷️📢! We explore the implications of different cheliceral morphotypes related to different trophic adaptations on the species' ability to undergo ecological release in the red devil spiders from the Canary Islands.
Full text at @InsectDiversity:
https://t.co/Dtb03dlKvs

[35th European Congress of Arachnology @35thECA2025]

Arachnid of the week: Lola insularis Kratochvíl, 1937

[Abel Pérez González @abelaracno]

🎉Excited to share our new paper in Zoosystema!
Buemarinoidae, an enigmatic Opiliones family once known from six monotypic genera, is expanded with a redescription of Malagasy Flavonuncia pupilla + 4 new species.
Read more: https://t.co/lMAKk5Di2v
#Opiliones #Taxonomy #MACN

[Dr. Ivan Magalhaes 🕷️ @6eyes8legs]

Loxosceles galianoa, una nueva especie de araña del noroeste árido argentino. Bautizada en honor a María Elena Galiano, es pariente cercana de L. laeta, pero vive en ambientes naturales. En el artículo, también discutimos la evolución de la genitalia femenina en Loxosceles.

[Abel Pérez González @abelaracno]

Convocatoria del Instituto de Biología de la Universidad Nacional Autónoma de México, para una Persona Técnica Académica de Tiempo Completo en el área de Manejo de la Colección Nacional de Arácnidos (CNAN)
Consulta la convocatoria en: https://t.co/tyS9alOq8w

[Abel Pérez González @abelaracno]

@PewLycosidae Indeed!!

[Abel Pérez González @abelaracno]

Ready to see the love of my life in the dark! Deinopis sp., male, Argentina. 🫣😆

[Abel Pérez González @abelaracno]

Uncovering the worldwide footprint of an ancient relictual lineage of harvestmen: new genus and species of Buemarinoidae from Australia (Opiliones: Laniatores: Triaenonychoidea) https://t.co/yXfRRsKBt1

Now fully citable, with a volume number.

[Abel Pérez González @abelaracno]

Deinopis spiders are incredibly photogenic, perhaps due to their two enormous eyes that provide them with exceptional night vision. This is a male (notice its boxing glove-shaped pedipalps, which are used during mating), photographed in Buenos Aires.

[Abel Pérez González @abelaracno]

Male and female of the opilionid Sadocus polyacanthus  photographed near Lake Moquehue, Neuquén, Argentine Patagonia. Species Sadocus are among the largest and most colorful opilionids. Lake Moquehue marks the northernmost limit of this species' distribution in Argentina.

[Abel Pérez González @abelaracno]

@sderkarabetian Wonderful! Good to know! Cheers.

[Abel Pérez González @abelaracno]

@Megabunus @BritishSpiders It is indeed an Acropsopilionidae: Acropsopilio an introduced opilionid in UK. But for the sp. ID is necessary to study the specimen. Cheers.

[Maico Weites @MWeites]

New to the the UK: the harvestman Siro rubens.
I have now found an additional location in Bristol close to my previous ones. Publication to follow.