I thought it'd be interesting to compile a list of cockroaches in the hobby that are capable of producing sound! Just got some Eurycotis floridana "Big Torch Key" and was shocked to hear them hiss, causing me to wonder what other vocal species might be out there that nobody talks about. 😃 I'll start it off with the species I've personally witnessed produce sound/know can produce sound, whether it be through stridulation or hissing.
Hissers (Gromphadorhina, Elliptorhina, Aleuropoda, Princisia, etc.) *Hissing*
Macropanesthia rhinoceros *Hissing*
Nauphoeta cinerea *Stridulation*
Henschotedenia flexivitta *Stridulation*
Simandoa conserfariam *Stridulation*
Rhyparobia sp. "Gold" *Stridulation*
Eurycotis floridana *Hissing*
Blaberus giganteus *Stridulation*
Blaberus colosseus *Stridulation*
Blaberus craniifer *Stridulation*