Larvae (19mm length x 7mm width) of a botfly that had parasitized a mouse. First 3 pics of larvae, last 3 pics of damage to the mouse and the hole it came out of. This link has some interesting info about Cuterebra. http://www.merckvetmanual.com/mvm/index....
I found this mouse yesterday on the floor in the backseat of my car. It did not smell and was still soft, suggesting, it was recently deceased. I was shocked and confused to see this large hole in its belly, near perfectly shaped. There was a fly buzzing around inside it, they don't waste anytime! This is my first time seeing botfly larvae.