From audible.com:

America is a police state, and it is about to be threatened by the most hellish enemy in the world: insects.

When the Agency discovered that Dr. Hellstrom's Project 40 was a cover for a secret laboratory, a special team of agents was immediately dispatched to discover its true purpose and its weaknesses - it could not be allowed to continue. What they discovered was a nightmare more horrific and hideous than even their paranoid government minds could devise.

First published in Galaxy magazine in 1973 as "Project 40", Frank Herbert's vivid imagination and brilliant view of nature and ecology have never been more evident than in this classic of science fiction.