''Tigrosa aspersa'' is a large (up to one-inch (25 mm) body length)

wolf spider Wolf spiders are members of the family Lycosidae (). They are robust and agile hunters with excellent eyesight. They live mostly in solitude, hunt alone, and do not spin webs. Some are opportunistic hunters, pouncing upon prey as they find it or ...

that inhabits the eastern

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. Compared to its close relative ''

Tigrosa helluo ''Tigrosa helluo'' is a species of spider belonging to the family Lycosidae, also known as wolf spiders. ''T. helluo'' was formerly known as ''Hogna helluo'' before differences between dorsal color patterns, habitat preferences, body structu ...

'', ''T. aspersa'' is much larger. This species was known as ''Hogna aspersa'' prior to 2012, when it was moved to ''

Tigrosa ''Tigrosa'' is a genus of spiders in the family Lycosidae, found in North America. Taxonomy The genus ''Tigrosa'' was erected by Allen R. Brady in 2012. Prior to 1990, many medium to large wolf spiders (family Lycosidae) from North America wer ...

''. A different species (''

Lycosa implacida ''Lycosa'' is a genus of wolf spiders distributed throughout most of the world. Sometimes called the "true tarantula", though not closely related to the spiders most commonly called tarantulas today, ''Lycosa'' spp. can be distinguished from comm ...

'') was named ''Lycosa aspersa'' in 1849 by Nicolet by accident.

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Lycosidae Spiders of the United States Spiders described in 1844 Taxa named by Nicholas Marcellus Hentz {{Lycosidae-stub