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Excerpt from Bulletin of the Lloyd Library of Botany, Pharmacy and Materia Medica: Entomological Series, Nos. 1-5; 1921-1926Whether the caddis-worms construct portable cases, or silken tubes, or make no cases until almost time for pupation, they all secrete a glue, or silk, through Openings in the lower lip, or labium. This silk is produced in large glands within the body

Title : Bulletin of the Lloyd Library of Botany, Pharmacy and Materia Medica: Entomological Series, Nos. 1-5; 1921-1926 (Classic Reprint)
Author : Lloyd Library and Museum
Language : en
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Type : PDF, ePub, Kindle
Uploaded : Apr 06, 2021

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