tigerman:
I believe the name was changed on orders by Hitler. He wanted something tougher.
I thought it was changed to align roles with type creatures; insects were self-propelled indirect fire artillery (Hummel-Bumblebee) and large mammals for self-ropelled direct fire anti-tank artillery (Elefant, Nashorn-Rhino). The Hornisse (hornet) was direct fire. They did the same with the Ferdinand and renamed it the Elefant.
Either way, guys, very nice builds. I'm impressed with the weathering.