Eriosoma flavum Jancke, 1930
on Ulmus
gall
leaf between two side veins coloured pinkish-brown, strongly bulging upwards; underside with wax-covered aphids.
primary hostplants
Ulmaceae, monophagous
Ulmus glabra, minor, procera.
on Cydonia, Pyrus
gall
small yellow aphids at the roots, at half a meter depth.
secondary hostplants
Rosaceae, oligophagous
Cydonia oblonga; Pyrus communis.
synonyms
Schizoneura flavum.
references
Blackman & Eastop (2014), Börner & Heinze (1957a), Redfern & Shirley (2011a), Roskam (2009a).
21/08/2014
mod 20.xi.2017