peppered,discoid,giganteus,fusca nymphs? need id

[Keith]

I went through a pet stores dubia colony to pick out odd colored nymphs, but now I noticed a few nymphs dont look like dubia nymphs wing pads are larger, striping is different, and color pattern different. Look at 2 largest nymphs in this photo, what species could they be?

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[ZOO CENTRE]

They are Blaberus sp. nymphs.

 

[Keith]

Which blaberus?

 

[ZOO CENTRE]

Blaberus or maybe Archimandrita? but what species -it will be possible to say after they will be adults.

Nobody will say you it now.