[1] The normally cream coloured saucer of the smooth spangle gall has a small cone elevated in its centre, a pronounced rim and they are sometimes found almost folded in two.

[1] Schenck's gall is an oval-shaped structure, about 0.1 × 0.2 cm and a light green colour, well camouflaged with the leaf lamina.

[3] Emerging in spring the female of the agamic generation develops in the discus-shaped structure about 0.4 cm across, known as a 'Smooth Spangle gall'.

[2] The gall falls to the ground in autumn, having developed in June or July of the previous summer.

This second N. albipes gall is hairy to start with and smooth later; not all that obvious and growing as a solitary structure.