You're amazing! Yes, this keys easily to Telmatophilus based on the lobed tarsi (just posted image that attempts to show at least the suggestion of the lobes). And from Downie and Arnett, there is only one species in the northeast, T. americanus LeConte, seen here from the MCZ. D&A states "frequent on leaves and flowers of semiaquatic arrow-arum, Peltandra virginica." I have no idea if any of that is close-by, but I found this one the same place I find all my beetles - in my backyard at the UV light. I'm still overwhelmed with IDing just what's outside the backdoor, so why go any farther afield? :) Still, I envy some of the "regulars" you get at your porch light, like this one . Maybe someday!

PS: worse, I now see that I previously posted this species from one collected last year, so I guess my dog ate my memory :(