This Forest Wolf Spider is rather large, male 3/8", female 3/8 - 1/2". This Wolf Spider hides by day, hunts at night. They are superb hunters, both day and night. The bite causes intense itching and may progress to (necrotic arachnidism) local tissue death. The venom is cytotoxic and generalized destruction of red blood cells are not usually seen. Treatment is the same as for the brown recluse.

Outdoor Treatment for Forest Wolf Spider Bite:
Elevation of the extremity is important. Cool compresses rather than warm are important. Tetanus update should be provided. Keep the bite site clean until reaching your health care provider for further treatment. Antihistamines may help control itching but will not change the wound. Sometimes surgical excision of the wound site needs to occur.

A series of 515 cases of confirmed Lycosa bites in Brazil showed that most occur between the hours of 6 AM and 6 PM, at a fairly consistent rate year-round. The most common bite sites were feet (40%) and hands (39%). The most common signs and symptoms were all local, with pain in 83%, swelling in 19%, and erythema in 14%. No local necrosis was described.
In the United States five cases of Lycosidae bites have been documented. One resulted in skin necrosis at the bite site, probably from the combined results of envenomation and infection.

-Wilderness Medicine, edited by Paul S. Auerbach.