Arachnids of North Carolina
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View Thomisidae Members: NC Records

Misumena vatia - goldenrod crab spider


Taxonomy
Order: ARANEAEInfraorder: AraneomorphaeFamily: Thomisidae                                                                                 
Comments: Described in 1757 as vatius from the Latin vati, which can mean either "bow-legged" or "prophet." It was originally placed in the genus Araneus (hence the initial "vatius" for gender agreement), but back then, almost all spiders were called "Araneus something-or-other." In 1804, it was placed in the genus Misumena (meaning "being hated"), only to bounce around nomenclaturally with >20 names for the better part of that century. It was ultimately restored to Misumena in 1872, where it has remained with only trivial exception.
Species Comment: Adult M. vatia have been shown to change colors to match the flowers where they rest, motionless, in ambush of their prey: Their color shifting is not rapid, but can take days.
Identification
Online Description/Photos: The female prosoma can be white to yellow, sometimes with broad bands of green to brown. The eye region is usually yellow to orange. The female opisthosoma is yellow to white. When yellow, a pair of green bands may start near the pedicel and run along the lateral edge to about halfway down. If the opisthosoma is white, pink to red bands may be located in this area. The legs are white to yellow.

The male prosoma is purple brown, sometimes with a broad pale median band. The eye region is white to pink. The opisthosoma is cream white to yellow, with brown spots on either side of the midline toward the posterior; there is a dark ring around the lateral edges of brown to red. The first two pairs of legs are purple brown, and sometimes there is pale banding on the distal segments. The legs are proportionally much longer in the males than the females. The other legs are yellow. The spiders use the spines on the first two pairs of legs to help them grab their prey. (Rose, 2022)

BugGuide Google, iNaturalist, Wikipedia, GBIFTechnical Description:

Comstock, J. H. (1940). The spider book, revised and edited by W. J. Gertsch. Cornell Univ. Press, Ithaca, 727 pp.

Comments: Similar in appearance to Misumenoides formosipes (q.v.), but Misumenoides has a "carina," i.e. a prominent, transverse, white ridge on the clypeus, while Misumena vatia does not.
Total Length: Females 6.0-9.0mm, males 2.9-4.0mmAdult ID: identifiable by photo
Distribution in North Carolina
Comments: Found nationwide, well into Canada and North to Alaska.
County Map: Clicking on a county returns the records for the species in that county.
Adult phenology:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge