I have spent a few months wondering where the eggs of my Varaderos are, and now I have figured it out. They are laying them in the leaf litter. They like this dead bromeliad leaf in particular, as evidenced by the two clutches (2 eggs on left, a few days old, and 1 egg on right, freshly laid).



Here's a close up of the freshly laid egg - it is at the 8 cell stage:



It's unusual for this species to lay in the leaf litter and this may indicate that they don't feel very secure laying further up in the terrarium. As a result, I plan on planting more plants in the upper third of the terrarium.