Roaches ???

im very knowledgeable about roaches, and blaptica dubias is what you are looking for

everything people mentionned here as a con, can't and won't happen with dubias
they won't breed in the tank
they won't escape the tank as they don't climb...
they're much slower than lateralis which is proportionnally talking, one of the fastest living thing btw
they don't bite, cry, fly, STINK, name it!
they're from far, the best all around feeder, and i know many many long time froggers (10-20+years) who never use supplements while having a staple diet of roaches and great success with frogs that lives 10years and more.
you can adjust the breeding speed with fresher or warmer temperature
they're actually one of the slowest breeder within roaches family, and the reason is that they don't lay eggs which is the same reason they don't stink
if you drop one of the floor, it will probably just stay there instead of running away instantly like lateralis and many other type of roaches!
if you live in the north, they probably couldn't even survive in your place as they're 100% tropical specie

their size ranges from 1/8 to over 2 inches so this is good for terribilis, maybe big tincs, galac, citron?
my whole herp collection have dubias, xept my baby terribs, and I must say it is more than fantastic
i have reeds, treefrogs, big frogs, terrestrial frogs, toads, geckos, tarantulas, scorps, beardies, fishes, turtle
even my dogs and cat will have dubias, I keep trying with my bird and gf tho...

roaches are from far the easiest to breed feeder I have... MUCH easier than beatles and we all know how easy they are!
basically I clean the tub once a year, and toss some veggies rip or left over everynow and then, a bit of cat food and we good!
no water needed...
they aren't complicated to separate once you have the right method
I personnal pick one of the egg crate, and tap on it over a bowl (I use bowl feeding methods with these since they burrow in substrat, which is the real and only downside to me)
all the small nymph will fall in the bowl and I just toss the bowl in any viv I want.... this takes me around 10sec from the tub, into the vivarium; more than 30 nymph ready to get eaten.

The real problem is what to do with adults? You definately don't want a BIG colony... I guess you could keep around 10 female and get rid of the roaches that get too big, and once a year, you let another 20roaches reach adult and be the next breeder for the next year (they live a bit less than 2 years)

bean beetle are not a good staple so you can't really make a comparison
altho I wouldn't use dubias for staple for PDF, I think using them as a treat with a tiny colony (inside a shoebox) would be very doable, MUCH easier than you think, and very very profitable to any darts who will have them

I haven't tried yet, but you know, animals know what's good for them! If you manage to get the frog(pdf) to eat just a few, chances are that the frog will crave for them afterwards, im pretty sure!
it worked with basically EVERY herp I have.. no jokes! I just haven't tried this with PDF as they're all too small now
I got a turtle that has been fed pellets in its water dish for 4 years... the owner told me he tried everything and never got the turtle to eat ANYTHING else
It took me a while, but I manage to trick the turtle into eating a few small roaches spreaded around the pellets... a few days later, the turtle would climb the glass when seeing me, begging for nothing else than roaches same goes for the beardie and like I say, all my animals will readyly have them