"It's raining rice"
Are weevil larvae falling from the sky? Sounds like sci-fi, but it’s real.
You can read more about it in the Kansas Insect News:
http://entomology.k-state.edu/doc/Newsletters/2014/KSInsectNewsletter25.pdf
The same weevils grow in acorns and make holes in them. If you’ve ever wondered where those holes in acorns come in, see the above link.
Image credit:
Steven Katovich, USDA Forest Service, Bugwood.org