...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」
...Here without anybutton of silk or silken loop and with scarcely a suggestionof a silken cocoon they change to chrysalids, generallyabout the first of June...
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」
...Itsefforts to disengage a chrysalis from its cocoon are very entertaining...
Rev. C. A. Johns 「British Birds in their Haunts」
...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」
...Follicle: = cocoon, q...
John. B. Smith 「Explanation of Terms Used in Entomology」
...As I suspected, my cocoon was truly that of the celebrated Oak Eggar...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...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」
...Itis closely allied to the Cynthia or Ailanthus worm, with the same kindof silk and a similar cocoon, and feeds on the castor oil plant...
Alpheus Spring Packard 「Our Common Insects」
...When about totransform to the pupa state, it forms a rude cocoon in the earth...
Alpheus Spring Packard 「Our Common Insects」
...The American Tentcaterpillar makes its cocoon, and assumes the pupa state...
Alpheus Spring Packard 「Our Common Insects」
...On removing its cocoon it made anotherof the same thickness; but on destroying this second one it spun a thirdbut frail web, scarcely concealing its form...
Alpheus Spring Packard 「Our Common Insects」
...On the other hand, thosecaterpillars known as 'silkworms' make a dense cocoon of pure silk,consisting of two layers, the outer of coarse and the inner of finethreads...
Geo. H. Carpenter 「The Life-Story of Insects」
...The pupae of butterflies are especially interesting, as illustrating theextreme reduction of the silken cocoon...
Geo. H. Carpenter 「The Life-Story of Insects」
...Before midsummer it has usuallyspun its yellow cocoon under some shelter on the ground and changed intoa pupa...
Geo. H. Carpenter 「The Life-Story of Insects」
...The Anthrax retains its larval shape without any appreciable change and lies motionless in the mason bee's cocoon, beside the pellet remains...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...The windfall appears to be appreciated, for I see the dwarf ferret about from cell to cell for four days on end, see her choose her cocoon and insert her awl in the most approved fashion...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
... Bent sharply at right angles, like a couple of broken matches, the antennae feel the cocoon with their tips alone...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
... Should the instrument not penetrate, it retreats into its sheath and the insect resumes its scrutiny of the cocoon, sounding it point by point with the tips of its antennae...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...The abominable deed is done: the Mutilla's egg has been laid in another's cocoon, beside the slumbering larva on which the newborn grub will feed...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
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