A solo butterfly, Funereal Duskywing (Erynnis funeralis), flew north and west of its range when it appeared on the San Francisco Peninsula. It fed on several blossoms of a Verbena bonariensis (while ignoring other flowers in the garden). If it is looking to expand its range, then it is time to plant Alfalfa (Medicago sativa) in the garden as a host plant for this Duskywing. Plants from the legume family, Leguminosae, are listed as viable host plants as well; several sources specifically mention Alfalfa as one of the best. There are 159 Leguminosae plants in this database.

Funereal Duskywing is a striking brown-toned butterfly with a distinct white trim visible on the upper dorsal side of the lower hind wing. It fed with its wings open.