Pineus similis (Gillette, 1807)on Picea

Picea sitchensis, Belgium, prov. Luxembourg, Chiny, Moyen, early June © Jean-Yves Baugnée

another specimen
gall
Of the ends of shoot the needles basis are shortened and curved, explaining the American name “ragged spruce gall adelgid”. Contrary to Adelges the thickened needle bases are not fused. The aphids are dark reddish-brown.
hostplants
Pinaceae, monophagous
Picea sitchensis.
In North America on several more Picea species.
notes
Introduced into Europe with Sitka Spruce from North America.
references
Albrecht (2017a), Cumming (1962a), Dauphin & Aniotsbehere (1997a), Redfern & Shirley (2011a), Roskam (2009a).
Last modified 15.xi.2017

Picea sitchensis, Belgium, prov. Luxembourg, Chiny, Moyen, early June © Jean-Yves Baugnée

another specimen
gall
Of the ends of shoot the needles basis are shortened and curved, explaining the American name “ragged spruce gall adelgid”. Contrary to Adelges the thickened needle bases are not fused. The aphids are dark reddish-brown.
hostplants
Pinaceae, monophagous
Picea sitchensis.
In North America on several more Picea species.
notes
Introduced into Europe with Sitka Spruce from North America.
references
Albrecht (2017a), Cumming (1962a), Dauphin & Aniotsbehere (1997a), Redfern & Shirley (2011a), Roskam (2009a).
Last modified 15.xi.2017