Gilletteella cooleyi (Gillette, 1907)

on Picea, primary hostplant

Gilletteella cooleyi gall

Picea sitchensis, Heerde, de Dellen © Arnold Grosscurt

Gilletteella cooleyi gall

old gall, cut longitudinally

gall

The gall is elongated, curved, and the needles are not strongly shortened.

hostplants

Pinaceae, monophagous

Picea abies, alcoquiana, engelmannii, mariana, orientalis, pungens, sitchensis.


on Pseudotsuga, secondary host plant

Gilletteella cooleyi on Pseudotsuga menziesii

Pseudotsuga menziesii, Boswachterij Nunspeet © Hans Jonkman

Gilletteella cooleyi on Pseudotsuga menziesii

Pseudotsuga menziesii, Loenen (gld) © Arnold Grosscurt: feeding damage

Gilletteella cooleyi on Pseudotsuga menziesii

wax-covered female with eggs

Gilletteella cooleyi on Pseudotsuga menziesii

Pseudotsuga menziesii, Landgoed Tongeren © Hans Jonkman: old feeding damage

Gilletteella cooleyi damage to Pseudotsuga menziesii

detail

hostplants

Pinceae, monofaag

Pseudotsuga menziesii.

synonyms

Adelges cooleyi.

notes

Originally a species from North America. When in Europe Picea species are not present the species can live permanently, asexually, and without inducing galls, on douglas fir.

references

Albrecht (2017a), Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Béguinot (2006a,b, 2007b), Bellmann (2012a), Börner & Franz (1956a), Buhr (1965a), Carter (1971a), Chinery (2011a), Dauphin & Aniotsbehere (1997a), Görür, Işik, Akyürek & Zeybekoğlu (2009a), Hellrigl (2004a), Kollár (2007a, 2011a), Lambinon, Carbonelle & Claerebout (2015a), Lambinon & Schneider (2004a), Lampel & Meier (2003a), Redfern & Shirley (2011a), Ripka, Reider & Szalay-Marzsó (1998a), Roskam (2009a), Schneider (2016a).

mod 15.xi.2017