Eating banana leaves.
On Parkinsonia sp.
https://www.insecte.org/forum/viewtopic.php?t=253953
Beside creek w/ damp sand/gravel.
2019-AZ-7444
Same individual as this observation: https://www.inaturalist.org/observations/175448778
VERY dedicated to patrolling the area in a garden around Stachys byzantina, Stachys officinalis (or S. monieri?), lavender, and other nearby nectar plants, aggressively chasing away other insects, including Bombus griseocollis. The last photo MAY be a female???