Pterocallis maculata (von Heyden, 1837)

green-barred alder aphid

on Alnus

Alnus glutinosa, UK © Bob Dransfield & Bob Brightwell, InfluentialPoints

parasite

Apterae 1-2 mm, in compact colonies at the underside of the leaves, preferably along the main veins. They are almost always attended by ants.

host plants

Betulaceae, monophagous

Alnus glutinosa.

Occasionally also on A. cordata.

references

Blackman & Eastop (2017), Börner & Franz (1956a), Durak, Durak & Borowiak-Sobkowiak (0000a), Heie (1892a), Łabanowski & Soika (2011a), López Rodríguez & Nieto Nafría (1983a), Nieto Nafría & Mier Durante (1981a, 1998a), Petrović (1998a), Piron (2017a), Ripka, Reider & Szalay-Marzsó (1998a, Stroyan (1977a), Wieczorek & Kanturski (2011a), Wojciechowski, Depa, Halgoš ao (2016a).