Psyllid-True Bug Confusion

[GrayB]

Hi Everyone,
I'm hoping someone can help me determine if this photo i took today is of a Psyllid or a true bug. On first seeing it i thought straight away that i was looking at a true bug nymph.
All of the following images were taken on a small group of leaves at the very tip of a branch of a tree i've yet to ID, though i can tell you that the tree was full of Catkins (if that helps)
It was this shot that that made me think about psyillids, i think probably because of the excretion bubble, i've seen psyllids do this when adult.



But not knowing the life cycle of psyllids it's hard to know and the next shot seemed to bring me back to true bugs, again all on the same patch of leaves.












After turning a few of the leaves over my confusion grew even more. This shot seems to show orange spots behind the eyes and this can also be seen on the adult psyllid.






So if anyone can shed some light and ID any of the images i'd really appreciate it.
Cheers.









All found on the same patch of leaves.
Cheers.
Gray.