Pachypappa vesicalis Koch, 1856

on Populus, primary host plant

gall

leaves with large, irregular, often pale, bulges, open to the underside. Often three or more galled leaves in close proximity on the same shoot.

hostplants

Salicaceae, narrowly monophagous

Populus alba, x canescens.


on Picea, Pseudotsuga, secondary host planten

gall

Apterae 0.5-3 mm, pale yellowish white, on thin mycorrhizal root ends with white filamentous wax. Some populations live permanently on the secondary host plant. Not attended by ants.

hostplants

Pinaceae, oligophagous

Picea abies, glauca, sitchensis; Pseudotsuga menziesii.

references

Albrecht (2017a), Blackman & Eastop (2014), Buhr (1965a), Carter & Danielsson (1993a), Dauphin & Aniotsbehere (1997a), Heie (1980a), Redfern & Shirley (2011a), Roskam (2009a), Tomasi (2014a).

22/02/2017

pub 12.iv.2017 · mod 22.viii.2017