The colour is different and it does not seem to open up as much, but I bet they’re cousins. This is also confirmed by a similarity in leaf shape.
I’ve been spotting them occasionally up at around 10,000 ft and above in these Aspen surrounds, in very small quantities.
Somehow their relative rarity (at least here and now) makes them more alluring to me.
Some Related Asymptotia Posts (not exhaustive):