I know that animal parasites can be very location specific.
Ya know, that was my exact thought after sending my last message and I'm sure you are correct. First time I saw a blow fly in action was down in Alabama, in late November. Most of our critters are gone by late October. I've never had chiggers in Iowa but got a good dose, one summer, in Nebraska. I think I'd rather wrestle a skunk that get into Chiggers, again ..
By the way, even the squirrels in Alabama are different. They are big and ugly.
Just last week, I saw a squirrel run across a city road that was overed with mange. The wife could not even tell it was a squirrel. Not pretty and felt sorry for him. ....
Be Safe !!!