. Elementary lessons on insects. Insects. NEUROPTERA 89 7. Arrange sand boxes in which these living larvae may construct new pitfalls. 8. Collect, cage and keep ants for food for these living larvae. 9. Collect orl flies when they swarm by the waterside. 10. Collect orl fly larvae from sandy shores by sifting with a sieve net. 11. Arrange dishes of sand in water for keeping them alive indoors. 12. Pin, mount and label a representative lot of Neurop- tera for the collection. 13. Make slide mounts of an aphis lion's head and feet. 14. Routine (see p. 204). LA BORA TOR Y PROGRA M A. The Study of
. Elementary lessons on insects. Insects. NEUROPTERA 89 7. Arrange sand boxes in which these living larvae may construct new pitfalls. 8. Collect, cage and keep ants for food for these living larvae. 9. Collect orl flies when they swarm by the waterside. 10. Collect orl fly larvae from sandy shores by sifting with a sieve net. 11. Arrange dishes of sand in water for keeping them alive indoors. 12. Pin, mount and label a representative lot of Neurop- tera for the collection. 13. Make slide mounts of an aphis lion's head and feet. 14. Routine (see p. 204). LA BORA TOR Y PROGRA M A. The Study of Living Specimens. 1. Place lace-wing larva that has been kept without food for several hours in the midst of a colony of living aphids and watch its procedure with them. 2. If cocoons containing living: pUDae are at hand, and Fig. 33.—An ant-lion pitfall in the sand, and 0 r r an ant near it. if chance offers, watch a pupa emerge and clamber upon a leaf and select a place to attach itself firmly and transform.^ 3. Drop a live ant into a pitfall containing a living ant- lion and watch the result. See the ant-lion try to seize the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Needham, James G. (James George), 1868-1956. Springfield, Ill. , Baltimore, Maryland, C. C. Thomas
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