Plant Parasites of Europe

leafminers, galls and fungi

Symydobius oblongus

Symydobius oblongus (von Heyden, 1837)

shiny birch-aphid

on Betula

Symydobius oblongus

Betula, England © Bob Dransfield & Bob Brightwell, InfluentialPoints


The shining brown aphids, not covered by wax, sit on the 3-4 year old branches and twigs. They are visited by ants. Upon disturbance they do not let themselves drop to the ground but crawl away.

host plants

Betulaceae, monophagous

Betula nana, pendula, pubescens.


Symydobius piceus Börner, 1950.


Bachmaier (1965a), Barbagallo & Pollini (2014a), Blackman & Eastop (2015), Börner & Franz (1956a), Börner & Heinze (1957a), Buhr (1964b), Dransfield & Brightwell (2015a), Ehrhardt, Kloft & Kunkel (1961a), Heie (1982a), Hellrigl (2004a), Houard (1908a), Lampel & Meier (1982a), Mier Durante & Nieto Nafría (1997a), Müller & Horatschek (1980a), Nieto Nafría & Mier Durante (1998a), Osiadacz & Wojciechowski (2008a), Petrović (1998a), Ripka, Reider & Szalay-Marzsó (1998a, Stroyan (1977a), Tambs-Lyche & Heie (1994a), Tomasi (2014a), Wieczorek & Kanturski (2011a), Wojciechowski, Depa, Halgoš ao (2016a).

Last modified 14.vii.2023