A few months ago I ordered several species of roaches from Kyle Kandilian (roachcrossing.com). He is very nice person. He was happy to replace one species that died during shipping and one species he forgot to send when I told him about what happened (he paid for the shipping!).
Today I tried to compare the Byrsotria sp. "Cuba" with Byrsotria fumigata to see if there are any differences. I did not look very hard so I will keep looking for differences in the future. But for now they look very similar to me.
The Byrsotria sp. "Cuba" of similar size (and so probably similar age) to the Byrsotria fumigata have more of a white margin on their pronotum than the Byrsotria fumigata of similar size (and probably similar age). But Byrsotria sp. "Cuba" could possibly have just a little white margin like Byrsotria fumigata so this might not be a good way to tell them apart.
Pictures:
Today I tried to compare the Byrsotria sp. "Cuba" with Byrsotria fumigata to see if there are any differences. I did not look very hard so I will keep looking for differences in the future. But for now they look very similar to me.
The Byrsotria sp. "Cuba" of similar size (and so probably similar age) to the Byrsotria fumigata have more of a white margin on their pronotum than the Byrsotria fumigata of similar size (and probably similar age). But Byrsotria sp. "Cuba" could possibly have just a little white margin like Byrsotria fumigata so this might not be a good way to tell them apart.
Pictures:
Byrsotria sp. "Cuba" nymphs
Underside of Byrsotria sp. "Cuba" nymph
Underside of Byrsotria fumigata nymph
Underside of another, larger Byrsotria fumigata nymph
Byrsotria sp. "Cuba" nymphs
Byrsotria sp. "Cuba"
In real life when I looked at the little guy in the middle I think it looked similar to the Byrsotria fumigata because of the coloration and just a little bit of white margin on the pronotum.