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Photo#918388
(Triozidae) - Trioza eugeniae

(Triozidae) - Trioza eugeniae
Santa Cruz, Santa Cruz County, California, USA
May 7, 2014
Size: 2mm
On ivy (Right next to Bush Cherry Tree). Sort of pink eyes.

Moved
Moved from Psylloidea.

Any Eugenia around?
Looks like a great match in all regards for the non-native Eugenia Psyllid Trioza eugeniae, except for the hostplant which is typically Eugenia (Syzygium paniculatum), an Australian shrub. If not, Percy, Rung & Hoddle do mention that "host preferences of introduced species may expand in regions of introduction relative to the host preference in the native range", and cite the Eugenia Psyllid as an example. No known species in Califoria utilyzes Ivy as a hostplant.

I've uploaded some images of the psyllid from a couple years ago; compare them to yours and see what you think:


 
Sorry, It's been a whole week since I saw your comment!
I had to do some looking up, but I think you pretty much nailed it. This ivy is on a chain link fence and on the other side of the fence is a tree that could very well be Syzygium paniculatum. It actually grows two or three places in our neighborhood at least. I can't tell the species apart, but I believe what you refer to as a shrub can easily become a 20 or 30 foot tree. I do know that the tiny apple / cherry looking fruit is considered edible. (I've not tried it). I was hoping to identify it for sure, but have not been able to get over to it yet. Plus, I'm pretty sure you are right. I think the common name is "Bush Cherry", though I guarantee it is of proper tree height.

I have to say I'm pretty amazed that you got not only the insect, but the host as well!

Moved for expert attention.
Moved from ID Request.

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