Stenoterommata tenuistyla

Stenoterommata tenuistyla
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Nemesiidae
Genus: Stenoterommata
Species: S. tenuistyla
Binomial name
Stenoterommata tenuistyla
Goloboff, 1995[1]

Stenoterommata tenuistyla is a mygalomorph spider of Argentina, named after the thin, slender embolus in males of this species, which distinguish it from males of the sympatric S. crassistyla.[2] Females are distinguished from other three-clawed Stenoterommata by their spermathecae, which have a short basal portion and a single receptaculum arising from near the tip of the base. Males are diagnosed by one of the species autapomorphies: the presence of numerous short spines on the ventral metatarsus I.

Description

Distribution

Entre Ríos and northern Buenos Aires Province.

Behaviour

S. tenuistyla lives in short, branched burrows, lined with a dense layer of silk. The burrows are constructed under rocks or logs, between roots, or in open spaces. In Buenos Aires they have been found in the banks of the Rio Parana, along a stretch of 50 km; north of there, they appear to be replaced by S. crassistyla. In Entre Rios they have been found in mounds around trees. During daytime, the burrows had their entrances closed with silk and debris and were not directly visible.

See also

References

  1. "Taxon details Stenoterommata tenuistyla Goloboff, 1995". World Spider Catalog. Natural History Museum Bern. Retrieved 2016-04-15.
  2. 1 2 3 Goloboff, Pablo A. "A revision of the South American spiders of the family Nemesiidae (Araneae, Mygalomorphae). Part 1, Species from Peru, Chile, Argentina, and Uruguay. Bulletin of the AMNH; no. 224." (1995).


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