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I suppose they are also hard to miss. The wasps we have here are pretty aggressive, the nests smaller and harder to see so the first time you know that you have breached their space is when you get stung

Yeah there are some ground nesting wasps here that if you do any digging suddenly you find yourself in the middle of their nest getting stung like crazy.

Ugh. We have something here called a velvet ant. Only, it's not an ant but a wasp

Ah yes I remember the "cow killer" velvet ants in Arizona, fortunately I was never bitten by one.