The Bookshelf for boys and girls: Nature and Outdoor Life (1912)
University Society, New York · New York. : University Society · leaf 93
ds wait patiently for the answer. Putthis cluster of cocoons under the glass with theothers, and in the spring you will find your an-swer in the form of pretty little black flies withorange-colored legs banded with black. Thesebelong to the family of ichneumon-flies. If youare fortunate, you may… … The mother spider uses the hroad band of silk in weavingthe outside covering to the egg-case. Probably before these ichneumon-flies appearyou will notice some tiny flies, not more than onesixteenth of an inch long, flying around inside ofthe glass. These are secondary parasites whichhave devoured…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
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