Chilobrachys

Chilobrachys is a genus of Asian tarantulas that was first described by Ferdinand Anton Franz Karsch in 1892.[2] They are found in India, Myanmar, Malaysia, China, Vietnam, Thailand and Sri Lanka. They are usually medium or large-sized, and they can stridulate by using small spines present on the chelicerae.[3]

Chilobrachys
Adult male Chilobrachys fimbriatus.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Theraphosidae
Subfamily: Selenocosmiinae
Genus: Chilobrachys
Karsch, 1892[1]
Type species
Chilobrachys nitelinus
Karsch, 1892
Species

31, see text

Identification features

A Chilobrachys dyscolus tarantula.

They have special stridulating organs in their chelicerae, which are made of short spines. Males have a palpal bulb which ends in a long and slender blade like spine, females have one pair of spermatheca. The anterior eyes form almost a straight line. Their legs have a narrower scapulae at the tip of the metatarsus.[3]

Deaths

Chilobrachys bites may be fatal. Some cases have been reported where bites by Chilobrachys hardwickei resulted in gangrene and deaths.[4]

Species

As of July 2022 it contains thirty-one species, found in Asia:[1]

  • Chilobrachys andersoni (Pocock, 1895)India, Myanmar, Malaysia
  • Chilobrachys annandalei Simon, 1901Malaysia
  • Chilobrachys assamensis Hirst, 1909India
  • Chilobrachys bicolor (Pocock, 1895)Myanmar
  • Chilobrachys brevipes (Thorell, 1897)Myanmar
  • Chilobrachys dominus Lin & Li, 2022 - China
  • Chilobrachys dyscolus (Simon, 1886)Vietnam
  • Chilobrachys femoralis Pocock, 1900India
  • Chilobrachys fimbriatus Pocock, 1899India
  • Chilobrachys flavopilosus (Simon, 1884)India, Myanmar
  • Chilobrachys fumosus (Pocock, 1895)India
  • Chilobrachys guangxiensis (Yin & Tan, 2000)China
  • Chilobrachys hardwickei (Pocock, 1895)India
  • Chilobrachys himalayensis (Tikader, 1977)India
  • Chilobrachys huahini Schmidt & Huber, 1996Thailand
  • Chilobrachys hubei Song & Zhao, 1988China
  • Chilobrachys jinchengi Lin & Li, 2022 China
  • Chilobrachys jonitriantisvansickleae Nanayakkara, Sumanapala & Kirk, 2019Sri Lanka
  • Chilobrachys khasiensis (Tikader, 1977)India
  • Chilobrachys liboensis Zhu & Zhang, 2008China
  • Chilobrachys lubricus Yu, S. Y. Zhang, F. Zhang, Li & Yang, 2021 China
  • Chilobrachys natanicharum Chomphuphuang et al., 2023 Thailand
  • Chilobrachys nitelinus Karsch, 1892 (type) – Sri Lanka
  • Chilobrachys oculatus (Thorell, 1895)Myanmar
  • Chilobrachys paviei (Simon, 1886)Thailand
  • Chilobrachys pococki (Thorell, 1897)Myanmar
  • Chilobrachys sericeus (Thorell, 1895)Myanmar
  • Chilobrachys soricinus (Thorell, 1887)Myanmar
  • Chilobrachys stridulans (Wood Mason, 1877)India
  • Chilobrachys subarmatus (Thorell, 1891)India (Nicobar Islands)
  • Chilobrachys thorelli Pocock, 1900India
  • Chilobrachys tschankhoensis Schenkel, 1963China (Nomen dubnium)

In synonymy:

  • Chilobrachys decoratus (Tikader, 1977) = Chilobrachys fimbriatus Pocock, 1899
  • Chilobrachys jingzhao Zhu, Song & Li, 2001 = Chilobrachys guangxiensis Yin & Tan, 2000

One species has been changed to Selenocosmia:

  • Chilobrachys samarae Giltay, 1935Selenocosmia samarae

See also

  • List of Theraphosidae species

References

  1. "Gen. Chilobrachys Karsch, 1892". World Spider Catalog Version 20.0. Natural History Museum Bern. 2020. doi:10.24436/2. Retrieved 2020-01-31.
  2. Karsch, F. (1892). "Arachniden von Ceylon und von Minikoy gesammelt von den Herren Doctoren P. und F. Sarasin". Berliner Entomologische Zeitschrift. 36: 267–310.
  3. Zhu, Ming-Sheng; Zhang, Rui (2008). "Revision of the Theraphosid Spiders from China (Araneae: Mygalomorphae)". The Journal of Arachnology. 36 (2): 425–447. doi:10.1636/CA07-94.1. ISSN 0161-8202. JSTOR 25434306. S2CID 86482441.
  4. Banerjee K, Banerjee R, Mukherjee AK, Ghosh D (1997). "Tarantula bite leads to death and gangrene". Indian J Dermatol Venereol Leprol. 63 (2): 125–126. PMID 20944295.
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