How do scorpions recognize members of their own species?

I have a communal tank of Centruroides vittatus. They walk over each other, bump into each other, and rest all huddled together. They do not attach each other.
If I where to place another scorpion of another species, say some sort of Bark Scorpion (ex: Centruroides spp., Babycurus jacksoni) of similar size into the tank, would they not try and attack each other? What if equal amount of each species together (ex: 5:5, 10:10)
How would each species recognize other scorpion species? Do their pectines pick up the other scorpion's chemicals and automatically assume the scorpion is a threat and attack?
I have been pondering this for a while now.

Thank you.

VictorHernandez wrote:

Do their pectines pick up the other scorpion's chemicals and automatically assume the scorpion is a threat and attack?

There's your answer.

Well thanks.

It's all phermones and pectiens usage. But I suspect some phermones in certain species could be closely related if the two species are closely related. I mean you can see how P.imperators will tollerate heterometrus sp. I would love to see any scientific papers on this as well.