Found DOA, pinned. Much more vividly yellow irl. I’m not very good at ID’ing bees but I believe this one is male; and my guesses are either mixtus, sitkensis, or flavifrons
Laughlin Lake
on blanket flower cultivar 'Arizona Sun'
on western prairie clover (Dalea ornata)
caliginosus Bombus f 43.974, -123.114