In a new post at The Elder Scrolls Online site, the team outline the backstory for the Dreugh. These insect-like foes have appeared in previous Elder Scrolls titles like Morrowind and Oblivion, so it should be no big shock to see them returning for Online. They’ll be showing up in both Water and Land forms, so nowhere is necessarily safe from them (except the sky, I guess).
The only question that remains is how to pronounce ‘Dreugh’.
Get a first glimpse of them in the Elder Scrolls Online engine in the somewhat short video below.