title: Tortricidae
context: The Tortricidae are a family of moths, commonly known as tortrix moths or leafroller moths,[1] in the order Lepidoptera. This large family has over 10,350 species described, and is the sole member of the superfamily Tortricoidea,[2] although the genus Heliocosma is sometimes placed within this superfamily. Many of these are economically important pests.  Olethreutidae is a junior synonym. The typical resting posture is with the wings folded back, producing a rather rounded profile.
question: How many species of moth are there in the family Tortricidae?
answers: 10,350