I'm kinda mad with myself now that I didn't read this thread earlier - SLAM FASCINATING! Gotta love the cow boards! And I always called them rolie polies, too.
I've been waiting to see if my house was going to be overrun by tiny beetles again this year as it has every late spring/early summer since my husband and I built the house and moved in in '06. And I guess overrun is an exaggeration because I would find very few of them living - just dead ones around all the doors. New ones every morning. Didn't bother me too much, but I HATED for people to drop by and see them lying around the doors. (It's one thing for people to know I'm messy and unorganized- another thing entirely for them to think my house is nasty).
So I asked the exterminator (the man who chides me once a month for leaving the doors unlocked while I'm home alone) about them. When he came back the next month, he said they were a type of scavanger beetle (so want to spell beetle with an 'a' every time) commonly found in chicken houses, which I don't have. So guess where the bug man said they likely came from? Chicken litter. Now, the bugs didn't appear when the litter did, so his thoughts were that the litter contained eggs that didn't hatch until well after they were spread.
Well, my parents applied for and got some Equip funds, a requirement of which was testing and fertilizing according to their recommendations - which meant no litter this year. So far - no itty bitty beetles around the house. Again, I find that completely fascinating.
I'll be checking the cow patties on our place this week, too! And I never got this excited about bugs as a little one. ;-)