I kept it alive in a vial overnight in case a voucher ID was needed, but I gather from your comment that I won't be getting one from a female. Unfortunately, I don't think I collected another last night, but I do recall seeing at least one other individual on the sheet. I'll ask around the island about finding the host plant.

Trioza obtusa and T. aylmeriae are the two members of this group likely to be found in your area, and females of both are very similar. The male terminalia is very different however (being much more massive in aylmeriae), so males can readily be distinguished without difficulty. Neither species has been recorded yet for Rhode Island, which has been a historically neglected state for psyllids (and likely other things as well).