Fig.27 Apterae on Eriogonum; (a) CAUDA of Braggia eriogoni, (b) SIPH of B. eriogoni, (c) CAUDA of B. urovaneta, (d) SIPH of B. urovaneta, (e) Dorsal hairs of B. echinata (paratype), (f) Dorsal hairs of B. uncompahgrensis (paratype), (g) Dorsal hairs of B. eriogoni.