Sacchiphantes viridis (Ratzeburg, 1843)

on Picea, primary host plant

Sacchiphantes viridis: gall  on Picea abies

Picea abies, Germany, Bavaria, Schwangau © Arnold Grosscurt, late June

gall

Gall like the ones of S. abietis, but generally solitary.

hostplants

Pinaceae, monophagous

Picea abies, engelmannii, glauca, koraiensis, mariana, obovata, omorika, orientalis, pungens, sitchensis, smithiana.


on Larix, secondary host plant

Sacchiphantes viridis: damage on Larix decidua

Larix decidua, Hongarije, Budapest © László Érsek

Sacchiphantes viridis: damage on Larix decidua

detail

Sacchiphantes viridis: fresh infestation

fresh infestation

Sacchiphantes viridis: aphid

aphid with eggs

gall

The needles are sharply bent, locally thickened a yellowed. The aphids on the needles, pale to dark green, with little wax. Not attended by ants.

hostplants

Pinaceae, monophagous

Larix decidua, x eurolepis, kaempferi, sibirica

synonyms

Adelges viridis.

notes

Apart from its host alternation, the main difference with the related S abietis is that the galls of viridis ripen in June, July, those of abietis in August, September.

references

Albrecht (2017a), Bellmann (2012a), Buhr (196ra), Carter (197a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Kollár (2007a, 2011a), Lambinon, Carbonelle & Claerebout (2015a), Lampel & Meier (2003a), Redfern & Shirley (2009a), Roskam (2009a), Steffan (1962a), Sylvén (1960a), Tomasi (2003a).

pub 4.iv.2017 · mod 22.viii.2017