Here are some I got off-hand from knowledgeable people:
Tityus (Tit-yuss, not Tit-EE-uss)
Hadogenes (Had-OH-JEN-əs, not Had-OH-jens or Had-OH-jeans)
Grosphus (grōs-fus, easy right?)
Vaejovis (Veh-juh-vis, not Vay-HO-vis, like I was pronouncing it)
These are ones people often have difficulty with just off the top of my head. Got any in particular? Just ask.
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"If you can get a scorpion to eat 24 carrots I will buy you your next one."
-Jade Williamson- My collection: