Cincticornia americana

This small, broad- winged form was reared in April 1908 from a slight blisterlike swelling on the lateral veins of red oak, Quercus rubra taken at Albany, N. Y., November 12, 1907.

Gall. The gall is a slight, circular, blisterlike swelling on the lateral veins beneath and of very nearly the same color as the leaf. It is some 3 mm long and 1 mm wide, and may extend along the vein as well as into the leaf tissues beside.

Cincticornia americana

A slight, circular, blisterlike swelling of the lateral veins, length 3 mm, diameter 1 mm.

Cincticornia americana Felt.

Flat, inconspicuous galls.
A slight circular, blister-like swelling on the lateral veins, length 3 mm., diameter 1 mm.

Cincticornia americana

Flattened, pustulate or blister galls
A slight circular, blister-like swelling on the lateral veins, length, 3 mm, diameter 1 mm.

Polystepha americana (Felt)

Thin-walled, elongate blister on leaf vein
This species was taken originally from slight swellings, nearly the same color as the leaf, on lateral veins.

Host: Quercus rubra

Distr: NY