(Bark Spiders)

Caerostris, commonly known as Bark Spiders, is a genus of spiders in the family Araneidae. Caerostris spiders have been sighted 4 times by contributing members. Based on collected data, the geographic range for Caerostris includes 3 countries and 0 states in the United States. Caerostris is most often sighted outdoors, and during the month of April.

Taxonomic Hierarchy

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Arachnida
  • Order: Araneae
  • Suborder: Araneomorphae
  • Family: Araneidae
  • Genus: Caerostris

Other Common Names

Bark Spiders


Thorell, 1868

Sightings Overview

There have been 4 confirmed sightings of Caerostris (Bark Spiders), with the most recent sighting submitted on April 10, 2019 by Spider ID member gr8-whiteza. The detailed statistics below may not utilize the complete dataset of 4 sightings because of certain Caerostris sightings reporting incomplete data.

  • Web: 75% of the time, Caerostris spiders are sighted in a spider web (Sample size: 4)
  • Sex: 1 female and 0 male.
  • Environment: Caerostris has been sighted 3 times outdoors, and 1 times indoors.
  • Outdoors: Low foliage (2). Forest (1).

Location and Range

Caerostris (Bark Spiders) has been sighted in the following countries: Germany, Philippines, South Africa.


Caerostris has been primarily sighted during the month of April.

  • January:
  • February:
  • March:
  • April: 2
  • May:
  • June:
  • July:
  • August: 1
  • September:
  • October:
  • November:
  • December: 1

Caerostris Species

Featured Pictures

Picture of Caerostris spp. (Bark Spiders) - Dorsal Enlarge Picture
Picture of Caerostris spp. (Bark Spiders) Enlarge Picture
Picture of Caerostris spp. (Bark Spiders) - Dorsal Enlarge Picture
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