[This gall, which we strongly believe resembles an undescribed Blaesodiplosis midge gall that has been found in the Northeast, was listed by Stebbins as "Eriophyes amelanchieri n. s. June-berry mite-gall"]

These rounded galls occur in great numbers upon the leaves. On upper side they are globular, below they open by a prolonged tube which on maturity splits in two at the end, allowing the insect to emerge. Usually red above, light yellow-green below. About 2 mm above, 1-8 mm below. On June-berry, Amelanchier canadensis, June.

Eriophyes? amelanchieri
Hosts: Host originally listed as Amelanchier canadensis L., then Amelanchier ×intermedia Spach (pro sp.) [arborea × canadensis], and back
Rounded galls on upper leaf surface, open on lower surface by an elongate tube that splits open at maturity (could it be a Phylloxera?).
If they are eriophyoids, then the description is valid; otherwise, if they are Phylloxera or another insect, then the name is nude