Scap·to·co·sa (skap″to-koґsə) a genus of wolf spiders (family Lycosidae). S. raptoґria is a Brazilian species whose powerful hemolytic venom causes necrotic arachnidism.
Lycosidae — Ly·co·si·dae (li koґsĭ de) the wolf spiders, a family of venomous ground spiders that chase their prey. Genera include Lycosa and Scaptocosa … Medical dictionary