| 1. | The caudal end of the digestive tract is closed.
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| 2. | The caudal end is slightly down-curved.
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| 3. | The cover only encloses the caudal end of case, which is down-curved.
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| 4. | The caudal end curves downward gradually.
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| 5. | They create a silky case, which is broader anteriorly and gradually attenuating toward the caudal end.
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| 6. | The caudal end of the case is slightly down-curved, but is sometimes almost straight.
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| 7. | There is a small tube at the caudal end of the case through which frass is ejected.
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| 8. | The valve is three-sided and constructed after discarding fruits at the caudal end of the case.
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| 9. | The initial case has the form of a slender tube and is located on the upper side at the caudal end.
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| 10. | The cranial end of the larvae has two sharply curved hooks, generally dark in color, and distinctive spiracle patterns are observed at the caudal end.
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