Yep, the Batterbots, the new enemies from the mission A Gremlin in Knead. I don't know where these guys should be added in the monster types. They act like Retrodes but at same time are Creep Cakes. So this is a little silly problem...
Btw, The wiki images are bugged so this is very uncomfortable to work, I'm going to wait until the wiki is fixed to do the A Gremlin in Knead mission article.