HELP to ID:is it M.martensii

[william_wang]

Hi everyone.
they all WC and gravid mom.haha.
the left one is M.martensii.
how about the right one??
Pls help me to ID it.
thank you all!

 

[lancej]

Looks like they are the same, just the right one looks younger. A lot of species are slightly different colored than as adults. Also, the closer it is to the time it last molted, usually the brighter the colors/more contrast it will be. They also could be different sexes(I'm not really familiar with this species, so I'm not sure on this). Anybody, correct me if I'm wrong.

 

[william_wang]

Thank you.
this two come from different area.
and they all adult female and gravid!

 

[lancej]

Since I'm not familiar with this species(yet), this is just speculation, but it could just be a regional variation. Some species can show quite a bit of variation depending on their locality(and in some cases, individuals can have several variatons in the same population). Look at some of the Centruroides species, like gracilis, sculpturatus, and vittatus to name a few. By the way, NICE looking scorpions!

 

[william_wang]

thank you very much!
I agree with you.

 

[Michiel]

Mesobuthus has been revised for China. It could be regional variation, but also a different species. You can download a paper herehttp://www.bioone.org/doi/abs/10.1636/Ha10-36.1