Plate 1. Adelgidae, Phylloxeridae

(a) Adelges laricis, apterous progrediens; (b) A. laricis, alate gallicola;

(c) Pineus pini, apterous progrediens; (d) Pineus orientalis, alate gallicola;

(e) Phylloxera ilicis, aptera; (f) P.ilicis, alata