I'm afraid you won't find a lot of information out there. In the past there were a couple of really knowledgable wholesalers whom I could rely on to provide at least the major species, but unfortunately these operations were gobbled up by mega-companies (I'm sure you know the obvious one) who could no llonger be bothered to identify species. - even though they raised their prices. In this age of digital imaging, I have even offered my services free to several importers to help identify species, but none of them have taken me up on it.
This was one of the reasons I took the time to put up "Roy's List". I hoped that it would allow suppliers a quick and easy way to ID their stock. I see no evidence that this has happened. I'm afraid that stomatopods just don't make up enough of the market to justify the time and effort needed attempt an identification.
Roy