From 'Debts', a Jack arc featuring hostile aliens. We know nothing about them excepting that they see in a different band of the spectrum than Terrans (They were unaware that the exhaust fumes of their vehicles were visible to Terran soldiers from quite a distance).

I did ponder them for a bit in the context of my idea for a multiversal story featuring, among other things, 26 versions of Drip from 26 different universes, including one where these insectoids conquered Earth, exterminating the indigenous population.

But since, in the world of Jack, souls will reincarnate, and some human souls have reincarnated as furries, I proposed this did not stop simply because aliens had supplanted furries... so Drip got reincarnated, and still was a pervert, which led to this drawing:

http://www.furaffinity.net/view/2932619/