Female uropthalmus have a dark blotch in the dorsal (festae females also have a dark area).
In my video you can see the dark spot in the femeles dorsals.
Below is a photo of a female festae, the dark spot is obvious.
The reason the common name Red Terror is used for both, is common names are BS,
and actually the name red terror for uropthalmus, long before it was used for festae.