...Then if the caterpillars are not cocoon spinners they canburrow into the soil when they are ready to change topupae... 
Clarence M. Weed 「Butterflies Worth Knowing」
...They then sew themselves in for the winter, fastening allof the crevices in the nest so securely with silken webbingthat a very serviceable winter cocoon is formed...
Clarence M. Weed 「Butterflies Worth Knowing」
...On opening the crust,the wool is found of a brilliant, golden hue, sparkling withyolk, and firmly held together in masses, hardly distinguishablefrom the cocoon of the silk-worm...
Richard L. Allen 「Domestic Animals」
...The caterpillar in Europe ordinarily moults four times before passing into the cocoon stage; but there are races "à trois mues," and the Trevoltini race likewise moults only thrice...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...ThenChick had picked up a gay feather that had floated down from a scarletbird that sang in the tree-tops, and tore off silk from a cocoon...
Edith M. Patch 「Bird Stories」
...Inthe spring watch them change to thepupa in the cocoon and a little laterthe mature insect or codling moth, as itis commonly called, will emerge...
Leonard Haseman 「An Elementary Study of Insects」
...200) and Caddis flies, in which, especially thelatter, the metamorphosis is complete, the pupa being inactive andenclosed in a cocoon...
Alpheus Spring Packard 「Our Common Insects」
...The larvæ of those moths, such as the Sphinges, or Hawk moths, whichspin no cocoon, descend deep into the earth, where they transform intochrysalids and lie in deep earthen cocoons...
Alpheus Spring Packard 「Our Common Insects」
...In the numerous cases wherethe pupa is enclosed in a cocoon, the cremaster serves to fix the pupato the surrounding silk...
Geo. H. Carpenter 「The Life-Story of Insects」
... Examination at once reveals the tragedy that is happening under the cover of the cocoon...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
... And first the grub, as it is after consuming its victim, when it remains the sole occupant of the mason bee's cocoon...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...This puny grub, which will spin itself an infinitesimal cocoon of white silk under the piece attacked and will later become an insignificant moth, is the primordial ravager...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
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