Hoomhoffers are large insectoids used as heavy cavalry, close air support or shock troops by Baron Klaus Wulfenbach. The rider-insect pairs apparently usually . They are constructs made from enlarged dust mites (so they would be big enough to study), with air pumps on their backs that allow an insect of that size to breathe. Ognian seems to believe the beetles . Several of them fought the Battle Circus, but were bested by the bird-like Baba Yaga.