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Tigrosa helluo
Wetland Giant Wolf Spider
Tigrosa helluo is a medium-sized wolf spider (Lycosidae) native to North America, formerly classified as Hogna helluo. Adults average approximately 17 mm in body length, with females larger than males. The species is distinguished by a brown carapace with a prominent yellow stripe extending from the anterior eyes down the cephalothorax, and black spots on the underside of the abdomen. It inhabits diverse environments including woods, marshes, fields, and riparian areas, with a preference for wetter habitats. The spider is nocturnal, solitary, and an active hunter that does not build webs for prey capture.