Explanation of Plate.—Fig. 1. Aphrophora permutata Uhl. Adult. X About 7. Common from the Rocky Mountains to the Pacific. 1a—Side view of head, showing profile of face.
Fig. 2. Pupa of above. 2a—Side view of head of pupa.
Fig. 3. Semi-diagrammatic cross-section of a clump of Chrysopsis villosa to show relative location of larvae with relation to the froth mass and the surface of the earth.
Fig. 4. Aphrophora parallela Say Adult. X About 7. Eastern U. S. to Ohio and Mich. 4a—profile of head of same.
FOOTNOTES:
[1] For a detailed account of this process see Prof. Morse’s article “A Bubble-blowing Insect.” Pop. Sc. Monthly, May, 1900.
Plate 10.
BALL ON APHROPHORA LARVAE.