besides what's been mentioned already, there are the three morphs of A. bicolor. From Scorpions of the World p. 491.
A. b. aeneas
A. b. bicolor
A. b. longicarinatus
hi,another quick question . which of morphs is the biggest? i seen some online picture , and the tail is so wide .from i top view you could only see it's tail ! i think that the aeneas morph ?because its black and glossy but, i might be wrong.slight differences in coloration and some morphometrics, that's all....