Predators Don't Go After High Risk Prey
Even if these wyverns do produce a honey like substance, the dragon would not bother attacking a hive unless it was sure that the risk is minimal. Most animals do not even prey on animals with a high chance of causing minor injury which means that the wyverns CAN'T significantly harm the dragon if you want dragons attacking wyverns over food.
When a dragon attacks a wyvern nest, his scales are too thick for the wyverns to sting through in most places, and those few spots they can get through don't matter much because dragons have evolved alongside wyverns to have a high resistance to wyvern venom. So at most, the wyverns would be a minor irritation to the dragon. Not enough to really drive it off until the dragon is full enough to outweigh the discomfort of being stung.
The good news is that it does not matter that the wyvrens can't beat a dragon BECAUSE they are Eusocial. Eusocial creatures follow r-selection meaning that Wyvern colonies can get decimated by dragons on a regular basis and still recover quickly enough to do well as a species. Instead of victory, the wyverns need only to focus on not getting wiped out. To do this, the wyverns put thier "honey" near the outside of the hive and keep the queen and eggs near the inside. This way when a dragon attacks, it just rips open the outer walls, eats its fill of honey and leaves. It has no interest in eating the Queen or her eggs; so, the wyverns simply rebuild and go on about thier existence.
I would personally revisit your ideas for your other two eusocial creatures and really ask yourself if it make since for them to be dragon killers either. Things the size of elephants tend to follow K-selection meaning that they would not survive as a species if swarms of other creatures keep killing them off. When dealing with r-selection, you also need to ask yourself what is keeping these swarms of creatures from overpopulating. IE: if dragons aren't keeping their numbers in check, what is?