(Crab Spiders)

The spider family Thomisidae, commonly known as Crab Spiders, have been sighted 235 times by contributing members. Based on collected data, the geographic range for Thomisidae includes 21 countries and 38 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 235 confirmed sightings of Thomisidae (Crab Spiders), with the most recent sighting submitted on November 29, 2018 by Spider ID member yasin42. The detailed statistics below may not utilize the complete dataset of 235 sightings because of certain Thomisidae sightings reporting incomplete data.

  • Web: 10% of the time, Thomisidae spiders are sighted in a spider web (Sample size: 201)
  • Sex: 45 female and 32 male.
  • Environment: Thomisidae has been sighted 157 times outdoors, and 72 times indoors.
  • Outdoors: Man-made structure (47). On flower (34). Low foliage (29). High foliage (13). Ground layer (17). Under rock or debris (3). Freshwater river, lake, stream (2). Open field, pasture, grassland (6). Forest (6).

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, Malaysia, New Zealand, Philippines, Portugal, Spain, Sweden, Thailand, Turkey, Ukraine, United Kingdom, United States.

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


Thomisidae has been primarily sighted during the month of May.

  • January: 8
  • February: 11
  • March: 18
  • April: 33
  • May: 67
  • June: 32
  • July: 13
  • August: 19
  • September: 10
  • October: 12
  • November: 4
  • December: 6

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: Loxobates

Genus: Mecaphesa

Genus: Misumena (Flower Crab Spiders)

Genus: Misumenoides

Genus: Misumessus

Genus: Oxytate (Grass Crab Spiders)

Genus: Phrynarachne (Bird-dropping Crab Spiders)

Genus: Synema

Genus: Thomisus

Genus: Tmarus

Genus: Xysticus (Ground Crab Spiders)

Featured Pictures

Picture of Thomisidae (Crab Spiders) - Lateral 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) - Female - Dorsal,Eyes Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) - Dorsal Enlarge Picture
Picture of Thomisidae (Crab Spiders) Enlarge Picture
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