angustipennis (Crawford, 1911)

Type locality: USA, Colorado.

Additional distribution: Widespread in USA and Canada.

Host plant: Artemisia californica (CSCA specimens). Journet and Vickery (1979) give Achillea millefolium; earlier papers list Artemisia californica, A. tridentata, A. ludoviciana, and Solidago sp. (Hodkinson 1988).