Thats interesting, thanks for the advice on mite removal, I will remember it for the future but I think you are forgetting that Harpegnathos venators have to be fed live food.
My experiences of yesterday:
I caught 2 live big black flies that were about the same size of my ants and put them in the foraging area. My ants reacted but were very ineffective in killing them. They bit them, but it took a while for the flies to die, and these were helpless soft flies. With jaws that big I would expect a very quick kill. They then left them for about 10 minutes then picked them up and appeared to be trying to get them to the nest entrance but then I realised they might not be able to access it as the flie was quite heavy so I put in a tissue to act as a ramp for easy access. This didn't work and all they did was walk around the box and not make any attempt to go into the nest. They are also doing a similar thing with their dead workers, they just walk around carrying them. It is a small foraging area though, pictures to follow on Friday.
I did have better luck with the spider I put in there. I killed it then put it in the nest entrance but a worker moved it in about 2 inches then back again but much later in the day I noticed it was gone so I guess they must have eaten it.
By the way I still don't have any brood. My colony size I ordered was 26-50 but I got about 35 and about 5 died soon after. At the moment about 1 dies every day or two. My colony size is currently about 20. Interestingly nearly all of them insist on staying in the foraging area so I guess they must be hungry, but it is very hard to get them to eat. By the way, they have moved the parts of the bumble bee from Monday around.








