What underside pattern identifies the Green-veined White (P. napi)?
Answer
Streaked patterns, where greeny-grey lines follow wing veins
When observing the underside of the hindwing with the wings closed, the presence of Streaked patterns strongly suggests the species is the Green-veined White, P. napi. This streaking involves specific greeny-grey lines that radiate outward from the base of the wing, tracing the path of the wing veins. This visual cue differentiates it clearly from the Plain appearance seen in the Large White or Small White, and the Blotchy camouflage pattern associated with the Orange-tip butterfly.
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