As usual, Alzrius got it first...
Creature Catalog VI, by Thomas M. Costa, Kevin Baase and Eric Jansing, Nick Herold, Jason Bulmahn, C. Wesley Clough, and John Flemming - Twelve new monsters (some updated from older editions of the game) are presented here (the first page presents who is responsible for what monsters): the black beast of bedlam (CR 14), cave fisher (CR 3), giant dragonfly (CR 2), dungeon phantom (CR 6), rot giant (CR 8), cannon golem (CR 14), maedar (CR 4), obliviax (CR 1), scarecrow (CR 3), seedroach (CR 1; the seedroach swarm is CR 7), giant slug (CR 7), an springheel (CR 8). The obliviax has a sidebar presenting it as a hazard as well. It's also worth noting that a few minor variants of scarecrows are also given in its entry.
It looks like the quickling didn't make the cut this time. The maedar was our other missing creature.
And yea for the variant scarecrows making the cut!
Congrats to Demiurge for getting three critters into this one!