One of the humbling things for us humans to remember is that planet Earth would get along very well without us.
But without insects, the planet would not survive. I don't think we would survive without insects either.
So we are not as important as we seem to think we are.
Thanks PH, also check this out about Ants.
http://www.impexsoftdesign.com/index.php/weird-and-funny-facts/50-the-total-weight-of-all-the-ants-on-earth-is-about-the-same-as-the-weight-of-all-the-humans-on-earth