Fig.56     Apterae on Vaccinium; (a) Cauda of Macrosiphum parvifolii, (b) SIPH of M. parvifolii, (c) Cauda of Illinoia pepperi, (d) SIPH of I. pepperi, (e) SIPH of Wahlgreniella vaccinii, (f) Front of head (dorsal aspect) of Ericaphis latifrons, (g) SIPH of E. scammelli (paratype), (h) SIPH of E. latifrons.