Tortrix (?), n. [NL., fr. L. torquere, tortum, to twist.] 1. (Zoöl.) Any one of numerous species of small moths of the family Tortricidæ, the larvæ of which usually roll up the leaves of plants on which they live; -- also called leaf roller.
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2. (Zoöl.) A genus of tropical short-tailed snakes, which are not venomous. One species (Tortrix scytalæ) is handsomely banded with black, and is sometimes worn alive by the natives of Brazil for a necklace.
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