There is an instance in the reference for `ImageIdentify` were a catogery is specified. Here it is: 

    ImageIdentify[Image, 
         Entity["Species", "Infraspecies:CanisLupusFamiliaris"]]

It says dog (species specification). Not knowing this instance how would I find find this command. Even though knowing this command from the reference I have no idea how to figure it out. I tried many things and at least found "Infraspecies" by using `EntityClassList["Species"]`. But how do I get further to the mentioned catogery?