These lads were found in the NW part of South Africa.They are in some parts of the US. Where did you find them?
Kyle, compare the pattern on the pronotum and also, you can compare the 4 dots on the plates over the thorax. That's what makes me think its a Harlequin. That picture I posted is one I took of my harlequins when I still had them.If I had to take a stab at it I'd say they're either N. rhombifolia or some Periplaneta or related genera nymphs.