As if the leaf cutting ants weren't bad enough - now I have these, whatever they are. They're in the avocado tree. Not all the way up (big tree) but on the trunk about head high. With the 1000 or so tightly grouped it looks like a nest just burst - or do they swarm and stick together ?? Not sure they are old enough to fly but look like winged creatures to me. They had started eating leaves on a small branch so I sprayed them.
BTW ... the ant powder I've been using on the leaf cutting ants works but without bodies I can't tell if it's just chasing them away. While I was in Melaque for a week my house keeper ran into another nest and poured a 1/4 bottle of Cloro (bleach) down the hole. Hundreds of bodies lying around when I came back
I'm tempted to call them aphids .... but this is Mexico
So .... they are stink bugs. Not much to worry about. They do eat fruit but I have no fruit now. They also may stink but I didn't smell anything. Neighbors recognized them because they've had them