I got out my 30 year old Magic Mill wood stone wheat grinder, after not being used for at least 8 years.  It was stored in the laundry room, and I had stupidly left about a half teaspoon of hard red winter wheat flour in the collector (& stone grinding area).  I was surprised to find about 8-10 of these dark brown/black appearing larvae still alive and moving around after all this time.  They are about 1/2" long, and I took these photos with a digital microscope, so they look larger than life.

Larvae image #1

Larvae Image #2

I have not seen any of the more typical brown flour beetles that chomp through boxes and bags (about the size of a small sesame seed), nor any moths.  There was also tons of carmel colored smaller, dried out poppy seed size particles & some webs all over every aspect of the grinder.  I scraped some and took another shot that is more detailed under microscope.  I'm assuming these must be dried out eggs?

Larvae Eggs ???

Anyway, I'm totally freaked out about using this old Mill, as it is very hard to get it all apart enough to clean thoroughly...and am thinking about just getting a new Nutramill to replace it.

Any idea what these critters are...and how they could still be alive after at least 8 years?

I wasn't sure where to post this, but I had linked photos, so if moderator needs to move it, please do.