When I had my first hissers 15 years ago there was only one type. Two years ago when I got back into roaches my local pet store gave me the 2 little colonys they had and said one was wide horn. I was like sure guy not realiseing there was actually different speices of hissers. Its a good thing they mature slowly and I was able to seperate them out. I traded off like 500 of them that were possible hybrids to a guy to use for feeders. Its kinda a live and learn thing especially considering there isnt much literature on how to properly identify pure hisser species or many other roaches for that matter.