Philodromidae
(Running Crab Spiders)

The spider family Philodromidae, commonly known as Running Crab Spiders, have been sighted 189 times by contributing members. Based on collected data, the geographic range for Philodromidae includes 14 countries and 38 states in the United States. Philodromidae is most often sighted indoors, and during the month of May.

Taxonomic Hierarchy

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

Common Name (AASMore information icon)

Running Crab Spiders

Other Common Names

Crab Spiders

Author

Tamerlan Thorell, 1870

Sightings Overview

There have been 189 confirmed sightings of Philodromidae (Running Crab Spiders), with the most recent sighting submitted on June 3, 2019 by Spider ID member livvytabb. The detailed statistics below may not utilize the complete dataset of 189 sightings because of certain Philodromidae sightings reporting incomplete data.

  • Web: 8% of the time, Philodromidae spiders are sighted in a spider web (Sample size: 188)
  • Sex:¬†5 female and 37 male.
  • Environment:¬†Philodromidae has been sighted 99 times outdoors, and 111 times indoors.
  • Outdoors: Man-made structure (51). Low foliage (15). High foliage (4). Ground layer (8). Under rock or debris (2). Freshwater river, lake, stream (1). Saltwater (1). Open field, pasture, grassland (8). Forest (9).

Location and Range

Philodromidae (Running Crab Spiders) has been sighted in the following countries: Canada, Germany, Ireland, Israel, Italy, Mexico, Serbia, Slovakia, Spain, Sweden, Thailand, Turkey, United Kingdom, United States.

Philodromidae has also been sighted in the following states: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Washington, Washington, D.C., Wisconsin, Wyoming.

Seasonality

Philodromidae has been primarily sighted during the month of May.

  • January: 4
  • February: 10
  • March: 32
  • April: 57
  • May: 62
  • June: 9
  • July: 2
  • August: 3
  • September: 2
  • October: 5
  • November: 1
  • December: 2

Additional Remarks

  • Spiders in this family have the second pair of legs longer than the rest.
  • Also see the family Thomisidae¬†for more types of “crab spider.”


Genus: Apollophanes

Genus: Ebo

Genus: Philodromus

Genus: Thanatus

Genus: Tibellus (Slender Crab Spiders)

Genus: Titanebo


Featured Pictures

Picture of Philodromidae (Running Crab Spiders) - Male - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Male - Ventral Enlarge Picture
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Picture of Philodromidae (Running Crab Spiders) - Dorsal Enlarge Picture
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