Acer saccharinum, Polen, Narew © Sébastien Carbonnelle

gall

part of the leaf irregularly folded upwards, margin deflected or rolled; often reddened; veins there swollen.

hostplants

Sapindaceae, narrowly monophagous

Acer saccharinum.

notes

originally a North American species. The species seems closely relateed with the European D. irregularis, and possibly the two even are conspecific. For a separate status of the two pleads the fact that in irregularis the entire lamina becomes galled, while in aceris the galling usually is restricted to a single leaf segment (Sébastien Carbonnelle, in litt.)

references

Gagné (2010a), Gagné & Jaschhof (2014a), Roskam & Carbonnelle (2015a) .

03/10/2016