It’s the old Parachromis loiselli, which is now called P. friedrichsthalii. The Yellow Jacket, which used to be P. friedrichsthalii is now P. multifasciatus.
The names changed in 2018, so you’ll still see a lot of websites calling it P. loiselli. Shops and suppliers that don’t know about the name change might see it written as P. friedrichsthalii and think it’s a Yellow Jacket.