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Cheiracanthium inclusum
black-footed yellow sac spider, American yellow sac spider, Agrarian Sac Spider
Cheiracanthium inclusum is a small, pale yellow spider native to the Americas, commonly known as the black-footed yellow sac spider or American yellow sac spider. It is an active nocturnal hunter that does not construct webs to capture prey, instead relying on speed and agility to pursue arthropods. The species builds small silk retreats during daylight hours and is frequently encountered both in natural vegetation and human dwellings. Despite historical misconceptions, its bite produces only localized symptoms without necrosis.