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Adelges cooleyi
2222_2483 Photo added 2013-03-03

Adelges cooleyi (Hemiptera: Adelgidae)
Cooley Spruce Gall Adelgid
Deming, Whatcom County, Washington
September 10, 2012

Old adelgid galls -- the mature nymphs emerged probably a month or so before this image was taken, through the holes visible near the needle attachments. Host is Sitka spruce (Picea sitchensis).

all photos and text © Joyce Gross