Our 2023 fundraiser has arrived, and we need your help!
We depend on donations to keep Butterflies and Moths of North America online and free. Your support is vital to the project. Please make a recurring or one-time donation to sustain this valuable source of information. Thank you!
Observation notes: Lone sulphur among many Western Whites. When I first saw the spotting on the ventral side, I ruled out Queen Alexandra's, yet the HW cell spot and green scaling as well as the wing shape all pointed to QA. Apparently, this species can show some ventral spotting, so that helped sway me on the ID.