Insect parasitism the alder woodwasp and its enemies - Skinner, E. R.; Thompson, G.H.; Encyclopaedia Britannica Educational Corporation (Chicago : Encyclopaedia Britannica Educational Corporation, 1968)
Also issued in b&w
Contrasts the life cycle of the alder woodwasp with the life cycles of its four parasites. Shows how the woodwasp larva is eaten & killed by enemy parasites. Points out how each of these parasites gains access to the woodwasp tunnel.
Keywords: Parasitism