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Species Tigrosa helluo

Wolf Spider with egg sac - Tigrosa helluo - female Hogna helluo - Tigrosa helluo - female Tigrosa - Tigrosa helluo Lycosidae - Tigrosa helluo - female Tigrosa helluo - male Sleeping Beauty - Tigrosa helluo lycosid - Tigrosa helluo grass spider swimming? - Tigrosa helluo
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Lycosidae (Wolf Spiders)
Genus Tigrosa
Species helluo (Tigrosa helluo)
Explanation of Names
Author of the name: Walckenaer.
Female: 18-21 mm
Male : 10-12 mm

How to Know the Spiders says the general color is dull yellow to greenish brown.

In that guide the abdomen is shown as dark with little pattern except a slightly dark longitudinal stripe toward the front of the abdomen like the image below:

See an illustration of T. helluo here.

See images of female and male here.
New England and adjacent Canada south to Florida and west to the Rockies. (1)
Works Cited
1.How to Know the Spiders
B. J. Kaston. 1978. WCB/McGraw-Hill.