Adelges tardoides Cholodkovsky, 1911

on Picea, primary hostplant

gall

Galls 5-15 mm, dispersed over the tree, mostly but one per branch; they open from end June till September; the aphids secrete copious amounts of frass.

hostplants

Pinaceae, monophagous

Picea abies.

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on Larix, secondary hostplant

hostplants

Pinaceae, monophagous

Larix sibirica.

references

Albrecht (2017a), Buhr (1965a), Dauphin & Aniotsbehere (1997a).