Dainty Sulphur on Desert Sunflower, Arizona--3752

Dainty Sulphur negotiations, Arizona--3758

Dainty Sulphur on Desert Sunflower #2, Arizona--3780

Dainty Sulphurs at sunflowers, Arizona--3800

Dainty Sulphur male in flight over sunflowers, Arizona--3824

Dainty Sulphur negotiations, Arizona #2--4122

Dainty Sulphur on Desert Sunflower #3, Arizona--3862