Rhopalosiphum nymphaeae (Linnaeus, 1761)

Fig. 33

Diagnosis

Aptera 1.5–2.5 mm, brown to olive, dusted with greyish wax, particularly on venter and margins, including legs and antennae. Siph. swollen, with a distinct constriction before the apical flange. Holocyclic, dioecious, alternating between Prunus and many unrelated, mostly aquatic or semiaquatic plants. Not ant-attended.

Recorded Pteridophyta hosts

Marsileaceae: Marsilea quadrifolia, M. strigosa; Salviniaceae: Azolla caroliniana, A. filiculoides, Salvinia auriculatia, S. natans .

Distribution

D F N S.