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Latching falling bpecimens. The caterpillars may be brought home in a small metal lxi\ or a canvas collecting bag. Remember not to put too many specimens in one box or sack, and never put the hairy with the hairless caterpillars.
Upon reaching home, the collector should separate the caterpil lars according to kind, placing each kind in a separate jar, with not too many in one jar.
While air holes are not necessary, the jars must be cleaned each day and all moisture must be removed to prevent mold. Likewise, the jars should not be exposed to the sun as this will cause mold. Avoid removing the caterpillar from the food plant by force; rather clip the sec"tion on which it rests and place it with the caterpillar on the fresh food.
As the caterpillars develop, they
uiih a top covered with wire. Tl»e cage should contain about three or four inches of sifted soil covered with a layer of moss or dead leaves. I he cage should be kept in a cool place and should be regularly sprayed with water in order to keep the soil moist.
After the adult butterfly has emerged from the cocoon, time should be allowed — perhaps several hours — for the wings to harden. After this elapse of time, the butterflies may be killed and mounted with -less likelihood of damage.
Specimens captured in the field should be confined in a poison jar to be killed and then pinned at once or placed in an envelope to prevent damage. Fresh specimens should be mounted on a spreading board made for the purpose. Refer again to Figures 3 and 4. In order to pin the butterflies to this board, the wings should be placed at right angles to
Home-made
caterpillar
cage.
Moss Soil
attach themselves somewhere to transform into a chrysalis. This is known as the pupa stage. Since butterflies pupate in various manners and for var^-ing lengths of time, it is necessary to have a pupa cage. This cage should be made of wood
SEE and HEAR— April
the body and held in this position by means of pins and paper strips.
If a specimen becomes dry before it has been mounted, it can be relaxed by being placed in a tight container, with a layer of one-half inch of moist sand in the bottom. A piece
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