Will have to correct my info on the cross. I don't agree with the natural hybrid suggestions either. I have N. veitchii x fusca and while they are very pretty with the peristome elongated from the N. fusca. They don't look like any of the pics I have seen of this other plant.
I have mostly stopped trying to suppliment with insects. There are just too many plants. This time of year the plants do get a natural meal here and there on their own but I don't think it is enough to make much of an impact.