Even though they are all pretty alike.
Some do have special properties.
Examples are the Parabuthus flinging.

Or those who can crystallize to survive sub-zero temps.

Those who make noises in different ways...

Actually that's pretty much it.
At least that I know, add on?

Parthenogenesis occurs in a handful of species.

Do you know why some animals are parthenogenesis?

Why are they?

Dunno. I suppose it's advantageous if males are difficult to find, but it doesn't lend itself to a lot of genetic diversity.

probably because of breeding dificulties. i think all T's should be parthogenic because they always fight, same with mantids.

^That's a bit of a generalization. I've seen several (successful) breeding attempts with tarantulas where there was no aggression at all. Same goes for mantids; most "female eats the male" situations are due to outside influences (another male showing up, a clumsy scientist, unnatural laboratory settings, etc.).

yea... but it is just easier with pathogenesis...
ok, how about mayflys? they moult from larvae into flys, live from 12hours - 3 days, and in that time have to find a mate. would that not be simpler if they were parthogenic?

How is it biologically possible to be parthogenic?
Where do they get the sperm from?

Never heard of the Cardiotoxic Centruroides
Do you know of any specific ones? Or where you heard it?

Please note that its belived that all scorpions have 2 types of venom and can control it..

Hemiscorpius Lepturus has Cytoxin

One chould read this for more infomation about this

http://www.americanarachnology.org/JoA_free/JoA_v21_n1/JoA_v21_p60.pdf

Yes, the stun and kill theory.