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Euphrictus

Euphrictus is a genus of tarantula which is found in Africa. It is part of the subfamily Selenogyrinae.

Last revised
Jun 3, 2026
Read time
≈ 1 min
Length
239 w
Citations
7
Source
Euphrictus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Theraphosidae
Subfamily: Selenogyrinae
Genus: Euphrictus
Hirst, 19081

Euphrictus is a genus of tarantula (family Theraphosidae) which is found in Africa. It is part of the subfamily Selenogyrinae.2

Taxonomy

The genus Euphrictus was erected by A.S. Hirst in 1908 for the species Euphrictus spinosus,1 described on the basis of a single male from Cameroon.3

Euphrictus has a rastellum on the chelicerae, which is rare in tarantulas, as it is quite primitive, and could point to the conclusion that all tarantulas may once have had this feature, but this was lost in more advanced groups. A lack of genera prevents this from being proven.2

Description

Euphrictus is characterized by the stridulating organ between the chelicerae. This consists of stout, peg-like setae and thick thornlike spines. There is also rastellum on the chelicerae.2

Species

As of January 2016, the World Spider Catalog accepted the following species:1

References

References

  1. "Gen. Euphrictus Hirst, 1908". World Spider Catalog. Natural History Museum Bern. Retrieved 2016-01-15.
  2. Smith, A.M. (1990). Baboon spiders: Tarantulas of Africa and the Middle East. London: Fitzgerald Publishing. ISBN 978-0-9510939-7-9.
  3. Hirst, A.S. (1908). "On a new type of stridulating-organ in mygalomorph spiders, with the description of a new genus and species belonging to the suborder" (PDF). Annals and Magazine of Natural History. 8 (2): 401–405. doi:10.1080/00222930808692503.