Some lepidopterists think the pupa works head first
to the surface, pushing with the abdomen. To me this seems impossible.
The more one forced the blunt head against the earth the closer
it would pack, and the delicate tongue shield surely would break.
There is no projection on the head that would loosen or lift
the earth.
One prominent lepidopterist I know, believes the moth emerges
underground, and works its way to the surface as it fights to
escape a cocoon. I consider this an utter impossibility.
Remember the earth-encrusted cicada cases you have seen clinging
to the trunks of trees, after the insect has reached the surface
and abandoned them. Think what would happen to the delicate moth
head, wings, and downy covering! I am willing to wager all I
possess, that no lepidopterist, or any amateur, ever found a
freshly emerged moth from an underground case with the faintest
trace of soil on its head or feet, or a particle of down missing;
as there unquestionably must be, if it forced its way to freedom
through the damp spring earth with its mouth and feet.
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