Didn't want to piggyback on somebody else's thread...question for Brian -
Probably the HBH was overdone. Go light on it as the Pheromone in the Lemon Grass Oil is potent to a bee. To intense of an odor will force the bees out as if it were Beegone. The fact that you sprayed the inside of the hive with HBH tells me that you don't really understand its proper use. It has Lemon Grass Oil as an additive and is designed to be given to the bees via sugar syrup not used in lieu of a swarm lure.
Then, too, sometimes swarms already have their new home already chosen and nothing short of a queen includer is going to keep them from it. Sometimes they may wait several days, even draw some comb, but if they've already picked a new home say Bye Bye Bee!
If you can keep them in the box for a day, install a frame of brood to anchor the swarm. Not honey, that they will gorge themselves on and still take off anyway.
This swarm has stayed a day and a half now and I didn't use any phermones. I put in a frame of brood and a frame of honey. Brian, should I pull out the honey? How long should I leave them alone?
It was important to take a look at your pictures of the swarm. That is what I call a baseball sized swarm. They can be difficult to develop.
Since you've already place a frame of brood and a frame of honey in the hive you are already in the process of nursing this mini-swarm into a viable hive.
From the pictures I would say that you either have a virgin queen from a series of after swarms or the remanants of a swarm someone else hived.
The lack of bees coming and going from the hive is due to the small number of bees in the swarm, they must stay in the hive to tend the brood frame that was planted there. The frame of honey is essential to their survival, do not remove it.
So assuming you want to spend the time and effort to develop this into a viable hive you need to take the following steps.
1. Inspect the hive and determine if it actually has a queen or is developing one from the brood in the frame.
2. Feed sparingly, a pint or quart container is best, a framer feeder is a good choice as long as it is a single frame wide.
3. As the bees in the frame hatches the hive will growth in strength and the bees from the swarm will begin to forage.
5. At his point check the hive again for evidence of brood and/or queen, as well as comb building and storage.
6. Add another frame of brood, if you place it on the opposite side of the frame feeder from the existing bees you can include the nurse bees on the frame as well. If this is done, go back in 2 days and place all the frames with brood/bees together.
7. Plan on keeping it in a nuc hive for an extended period. Plan on building the nuc up before it is transfered to a new larger hive, that is, wait until you have 2 full 5 frame nucs of bees from this hive before transferring. This is important because of the low bee count and required defense of the hive. Use an entrance reducer to 1".
8. It might be necessary to add one more frame of brood, depending a lot on how weather affects foraging, and the industry of the queen.
That is how you successfully turn a morsel into a cake.