(Crab Spiders)

The spider family Thomisidae, commonly known as Crab Spiders, have been sighted 375 times by contributing members. Based on collected data, the geographic range for Thomisidae includes 30 countries and 45 states in the United States. Thomisidae is most often sighted outdoors, and during the month of May.

Taxonomic Hierarchy

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

Common Name (AASMore information icon)

Crab Spiders


Carl Jakob Sundevall, 1833

Sightings Overview

There have been 375 confirmed sightings of Thomisidae (Crab Spiders), with the most recent sighting submitted on April 25, 2020 by Spider ID member kriss. The detailed statistics below may not utilize the complete dataset of 375 sightings because of certain Thomisidae sightings reporting incomplete data.

  • Web: 9% of the time, Thomisidae spiders are sighted in a spider web (Sample size: 340)
  • Sex: 48 female and 47 male.
  • Environment: Thomisidae has been sighted 237 times outdoors, and 141 times indoors.
  • Outdoors: Man-made structure (70). On flower (56). Low foliage (46). High foliage (15). Ground layer (25). Under rock or debris (4). Freshwater river, lake, stream (3). Open field, pasture, grassland (7). Forest (9). Desert area (2).

Location and Range

Thomisidae (Crab Spiders) has been sighted in the following countries: Australia, Brazil, Canada, Croatia, Czech Republic, France, Germany, Greece, Hong Kong, India, Indonesia, Ireland, Malaysia, Mexico, Montenegro, Morocco, New Zealand, Palestine, Philippines, Portugal, Spain, Sweden, Switzerland, Thailand, Turkey, Ukraine, United Kingdom, United States, Venezuela, Zambia.

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


Thomisidae has been primarily sighted during the month of May.

  • January: 9
  • February: 21
  • March: 42
  • April: 61
  • May: 105
  • June: 41
  • July: 19
  • August: 24
  • September: 14
  • October: 16
  • November: 5
  • December: 15

Additional Remarks

  • Also see the family Philodromidae for more kinds of “crab spider.”

Genus: Bassaniana (Bark Crab Spiders)

Genus: Coriarachne

Genus: Diaea

Genus: Ebrechtella

Genus: Epicadus

Genus: Loxobates

Genus: Mecaphesa

Genus: Misumena (Flower Crab Spiders)

Genus: Misumenoides

Genus: Misumessus

Genus: Oxytate (Grass Crab Spiders)

Genus: Phrynarachne (Bird-dropping Crab Spiders)

Genus: Platythomisus

Genus: Synema

Genus: Thomisus

Genus: Tmarus

Genus: Xysticus (Ground Crab Spiders)

Featured Pictures

Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
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