Senecio | Senecio vulgaris | Senecio sylvaticus | Senecio integerrimus | Senecio squalidus | Professor Pelser and a leaf of ''Senecio fistulosus |
It feeds on nectar of a Penstemon species on the Beartooth Plateau, Montana, as well as on Mertensia paniculata and a Senecio, likely Senecio lugens at Pink Mountain, British Columbia.