Ha, the last species is a good one, isn't it?
Actually, they don't belong to the genus
Deroplatys (as seen in the shape of the head, for instance), but to
Parablepharis. There is only one species known a present,
P. kuhlii. They really seem to be rather rare.
Regarding
Deroplatys, I can offer some additional information. A recently described new species has to be added to the list,
Deroplatys indica from, well, India.
The name
D. horrifica (not horrificata) is just a synonym of
D. angustata. There was once a good photo of a female of this species on the net, but the site seems to have vanished.
D. angustata resembles
D. lobata, but has slightly different shaped pronotum and wings. Although
lobata is highly variable,
angustata has some distinct features which allow to separate it from
lobata.
D. lobata and
D. rhombica may be the same species, this may apply also to
D. truncata and
D. shelfordi.
D. sarawaca is a spectacular species, one of my all-time favorites, you have never seen anything like this before. There exists no photo of this species, in fact there seem to have been almost no records since its description some 115 years ago. I searched for it twice, but without success. I found
D. trigonodera instead, which is almost a good...
The breeding turned out to be a challenge. Raising them is as easy as other species, but trying to pair them is frustrating. The males are only interested in female of a certain age, a certain silouette and only during a certain time of their life. I always keep dozens and dozens of adults only to have 2-3 females paired each generation. At moment I have 4 very large terraria filled up with females just two of which have copulated. I have one male left in this generation, when he also dies I will suddenly have 3 empty terraria... I have to buy more ethanol...
It's in every generation the same, I never know if it wasn't the last. Comparing to these ones,
D. lobata is a beginner species.