Ovipositor penetration?
The flower's ovary contains eggs in three chambers called carpels, and each carpel is divided into two locules. When the female moth visits the flower, she backs up to the flower base and inserts her ovipositor to lay an egg in one or more of the six locules. By the time the egg hatches into a microscopic caterpillar, the yucca will have begun to develop a pod with little seeds, just as a fertilized apple blossom develops into a little apple. Many unanswered questions center around how the female moth knows a flower has not been visited before, and how many eggs she lays in how many flowers?
