My praying mantis is acting weird? he suddenly his sabdomen(stomach/bottom) is sucked in and he`s going to places very high and climbing them and standing still.His main diet os cave crickets and moths and he1s been eating very well. Is it molting?
It might be, most animals that retreat to a certain destination to shed their molt will do that. Spiders and Mantises do that often most animals of the insecta species.