[1][7] These inconspicuous galls and their larval inhabitants overwinter and continue their development in spring before adults emerge in late May and early June.

[1] These sexual generation adults mate and the females oviposit on veins on the underside of host leaves.

[2][8] The induced gall is detachable, oval in shape, and the color can range from white to yellowish to tan or brown.

The surface is fissured into facets that end in a short, hard point, reminiscent of jewelry.

[9] These galls typically fall with the leaves in autumn with the asexual female adults emerging shortly thereafter.