The Giant Vinegaroon is a large, scorpion-like arachnid with a whip-like flagellum tail that sprays a vinegar-scented acetic acid mixture from glands at the tail base when threatened — giving it its name. Despite its fierce appearance and the spray, it is not venomous and its bite is not dangerous. It is nocturnal, hiding under rocks and debris by day in the desert Southwest.
Best time to see a Giant Vinegaroon
The best time to see a Giant Vinegaroon is June–August, when about 71% of U.S. sightings happen, based on 170 research-grade iNaturalist observations.
Not certain it is a Giant Vinegaroon? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent Giant Vinegaroon sightings near you
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