Has a poisonous bite, is skilled in silk manufacturing, is highly intelligent and adaptive, and is significant as insect predator; has large jaw. Length is 0.28-0.59 in (7-15 mm), with female length of 0.39-0.59 in (10-15 mm) and male length of 0.28-0.35 in (7-9 mm). Adults have glossy olive-gray legs and a reddish brown abdomen; massive abdomens, with short legs and pickaxe-type fangs. Has three tarsal claws, and no claw tufts. Possesses pedipalpal coxae, with well-developed endites (median lobes). Labium is fused with sternum, eyes are closely grouped, and there are six spinnerets.
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