Hereford, W of Hwy. 92, lower Ash Canyon, Cochise County, Arizona, USA June 17, 2019 Size: c. 5 mm
These were on Arizona milkweed in our butterfly garden next to an adult https://bugguide.net/node/view/1677354/bgimage
and may well be the same species.
SE Huachuca Mts., c. 5,020' elev. Oak-grassland interface.