Gnaphosidae
(Stealthy Ground Spiders)

The spider family Gnaphosidae, commonly known as Stealthy Ground Spiders, have been sighted 232 times by contributing members. Based on collected data, the geographic range for Gnaphosidae includes 14 countries and 38 states in the United States. Gnaphosidae is most often sighted indoors, and during the month of May.

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 232 confirmed sightings of Gnaphosidae (Stealthy Ground Spiders), with the most recent sighting submitted on October 19, 2018 by Spider ID member missflowerchild. The detailed statistics below may not utilize the complete dataset of 232 sightings because of certain Gnaphosidae sightings reporting incomplete data.

  • Web: 2% of the time, Gnaphosidae spiders are sighted in a spider web (Sample size: 193)
  • Sex: 25 female and 19 male.
  • Environment: Gnaphosidae has been sighted 40 times outdoors, and 164 times indoors.
  • Outdoors: Man-made structure (16). Low foliage (2). High foliage (1). Ground layer (10). Under rock or debris (8). Freshwater river, lake, stream (1). Desert area (2).

Location and Range

Gnaphosidae (Stealthy Ground Spiders) has been sighted in the following countries: Australia, Canada, Germany, Ireland, Netherlands, Pakistan, Portugal, Saudi Arabia, South Africa, Spain, Thailand, Turkey, United Kingdom, United States.

Gnaphosidae has also been sighted in the following states: Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wisconsin.

Seasonality

Gnaphosidae has been primarily sighted during the month of May.

  • January: 13
  • February: 13
  • March: 21
  • April: 28
  • May: 80
  • June: 23
  • July: 8
  • August: 7
  • September: 1
  • October: 11
  • 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: Aphantaulax

Genus: Callilepis

Genus: Cesonia

Genus: Drassodes

Genus: Gnaphosa

Genus: Herpyllus

Genus: Micaria

Genus: Nomisia

Genus: Scotophaeus

Genus: Sergiolus

Genus: Trachyzelotes


Featured Pictures

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