Moths
Okay, the axe and mace have been added to party treasure. Cinder, I didn't know you were wearing the gloves. But no, they don't seem to add anything to your thieving abilities or your ability to hit.
Marivhon is healed with his own healing potion for 5 hp and up. Cinder eats Marivhon's goodberry for 4 hp. Please remove those items from your character sheet, Marivhon. Everyone in the party is conscious.
Now that you mention it, the mechanical insects seem to be large moths (one foot wingspan). They flit around near the top of the theatre, completely silently. There is no obvious way to corral them.