@plazi_species very interesting work about the #tarantula genus #Aenigmarachne (#Theraphosidae), formerly monotypic with a species known from Costa Rica, now with a #newspecies described from both genders and discovered in #Colombia, thus extending the former known range of the #genus.

🕷️My beloved young friend FLUFF/Y ❤️

Almost a hundred million years of Theraphosidae, so I, homo sapiens sapiens, pale in comparison to you.

🇧🇷 Brazilian whiteknee tarantula (Acanthoscurria geniculata).

#tarantula #spider #acanthoscurriageniculata #mygalomorphae #theraphosidae #whitekneetarantula

Meet _Chilobrachys natanicharum_, a newly described tarantula from Thailand with legs that iridesce with "a blue-violet hue resembling the color of electrical sparks". You seriously gotta see this. https://zookeys.pensoft.net/article/106278/  

An article about some previously described metallic blue tarantulas from southeast Asia, including another Chilobrachys: https://www.smithsonianmag.com/smart-news/turquoise-tinted-tarantula-discovered-sri-lanka-180972990/

#spiders #tarantulas #Araneae #Theraphosidae #Thailand #taxonomy #arachnews #OpenAccess

A new electric-blue tarantula species of the genus Chilobrachys Karsh, 1892 from Thailand (Araneae, Mygalomorphae, Theraphosidae)

The enchanting phenomenon of blue coloration in animals arises from the fact that blue is one of the rarest colors found in nature, and it is a structural color that is produced by the arrangement of biological photonic nanostructures, rather than pigments. This unique coloration has evolved independently in many different species, adding to the fascination and diversity of coloration patterns in the animal kingdom. This study describes a new species of Chilobrachys Karsch, 1892 from southern Thailand that exhibits a blue-violet hue resembling the color of electrical sparks. Photographic illustrations, a morphological description, and the natural habitat of the new species are given. The diagnosis, palpal-bulb structures, spermathecae, and stridulatory organ morphology of related species are discussed.

ZooKeys

Some tidbits of #OpenAccess #Arachnews:

- a new high-level #phylogeny of #Solifugae, the bizarre and enigmatic arachnids known as "camel spiders", "wind scorpions", "sun spiders", and so on. From Siddharth Kulkarni at UW-Madison's Sharma lab and featuring all the usual suspects in the authors list, like solifuge expert Paula Cushing, Efrat Gavish-Regev, Danilo Harms, etc.  https://doi.org/10.1016/j.isci.2023.107684

- #tarantulas (family #Theraphosidae) in the wild in Argentina! Including many Plesiopelma aspidosperma and "the first published color photograph of an adult specimen of Cyriocosmus versicolor based on a reliable taxonomic identification". 🔓 https://www.researchgate.net/publication/373649580

#arachnids #spiders #Araneae

Speedy - Marcin Jasiński

Psalmopoeus cambridgei

Krwawa Zosia - Marcin Jasiński

Brachypelma boehmei ♀

There are only 2 genera of #Theraphosidae protected under #CITES - Mexican #Brachypelma and Indian Poecilotheria. Poecilotheria are also found in Sri Lanka, but those species are not listed... although they should be.
Poecilotheria are arboreal and one of the most sought after genera in the hobby. There are about 20 species available and some people's entire collection is made up of only Poecilotheria.
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