230 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
both tegmina and wings are unmistakable, the latter as somewhat 
triangular pads, upraised, with the anterior margin of the wing 
dorsal in position, and enclosing between them and the sides of 
Fia. 19. — Development of Red-legged Locust (Melanopl%ts femur-ruhrum) showing five 
nymph stages and growth of wings. (After Packard.) 
