What underside pattern points toward the Orange-tip butterfly?

Answer

Blotchy, presenting a greeny-grey camouflage pattern across the entire wing

Certain identification of common white species requires examination of the underside of the hindwing when the butterfly is perched with wings closed. If the pattern observed is described as Blotchy, this directly indicates the Orange-tip butterfly. This Blotchy pattern manifests as a disruptive, greeny-grey camouflage scheme that covers the entire surface of the wing. This pattern is fundamentally different from the Streaked pattern seen in the Green-veined White (P. napi) or the Plain pattern associated with the Large White and Small White.

What underside pattern points toward the Orange-tip butterfly?
insectbutterflycolorcharacteristicwing