Figures 3.12


The four major categories of insect feeding specialization.
Figures 3.12. The four major categories of insect feeding specialization.

Many insects are typical of one category, but others cross two categories (or more, as in generalist cockroaches). (After Dow 1986)

Previous figure
  Some basic variations in the open (a-c) and closed (d-f) tracheal systems of insects.
Next figure
  Generalized insect alimentary canal showing division into three regions.