Gnaphosidae
(Stealthy Ground Spiders)

The spider family Gnaphosidae, commonly known as Stealthy Ground Spiders, have been sighted 73 times by contributing members. Based on collected data, the geographic range for Gnaphosidae includes 6 countries and 18 states in the United States. Gnaphosidae is most often sighted indoors, and during the month of January.

Taxonomic Hierarchy

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Arachnida
  • Order: Araneae
  • Suborder: Araneomorphae
  • Family: Gnaphosidae

Common Name (AASMore information icon)

Stealthy Ground Spiders

Other Common Names

Ground Spiders, Flat-bellied Ground Spiders

Author

Reginald Innes Pocock, 1898

Sightings Overview

There have been 73 confirmed sightings of Gnaphosidae (Stealthy Ground Spiders), with the most recent sighting submitted on February 20, 2018 by Spider ID member misslizzy. The detailed statistics below may not utilize the complete dataset of 73 sightings because of certain Gnaphosidae sightings reporting incomplete data.

  • Web: 3% of the time, Gnaphosidae spiders are sighted in a spider web (Sample size: 34)
  • Sex: 22 female and 12 male.
  • Environment: Gnaphosidae has been sighted 12 times outdoors, and 26 times indoors.
  • Outdoors: Low foliage (2). Ground layer (4). Under rock or debris (4). Desert area (2).

Location and Range

Gnaphosidae (Stealthy Ground Spiders) has been sighted in the following countries: Australia, Canada, Portugal, Spain, United Kingdom, United States.

Gnaphosidae has also been sighted in the following states: Arizona, California, Colorado, Florida, Georgia, Indiana, Kentucky, Maine, Massachusetts, Michigan, Minnesota, New Mexico, New York, Ohio, Pennsylvania, Texas, Virginia, Washington.

Seasonality

Gnaphosidae has been primarily sighted during the month of January.

  • January: 12
  • February: 9
  • March:
  • April: 2
  • May: 3
  • June: 3
  • July: 5
  • August: 6
  • September: 1
  • October: 5
  • November: 2
  • December: 8

Additional Remarks

  • Though members of the entire family are collectively nicknamed “ground spiders,” that is not always where they are found. Especially synanthropic species such as Herpyllus ecclesiasticus, Scotophaeus blackwalli, or a handful of others that are often found on inner or outer walls of buildings.


Genus: Callilepis

Genus: Cesonia

Genus: Drassodes

Genus: Herpyllus

Genus: Nomisia

Genus: Scotophaeus

Genus: Sergiolus


Featured Pictures

Picture of Gnaphosidae (Stealthy Ground Spiders) - Dorsal Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) - Male - Dorsal Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) - Dorsal Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) - Dorsal Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) - Dorsal Enlarge Picture
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Picture of Gnaphosidae (Stealthy Ground Spiders) - Dorsal Enlarge Picture
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