Cynips nigricens n. sp.

Galls in clusters attached to the midrib on the underside of the leaves. The galls are cone-shaped, and resemble very small galls of C. strobilana. The galls fall to the ground a little before the leaves drop in the fall. From a large number of these galls gathered in October, 1887, I obtained one perfectly developed female late in September, 1888.

Adleria nigricens

Quercus bicolor
Leaf galls, detachable
Midrib cluster of closely-packed reddish-brown galls, dropping in September.

[Photo caption]
On Q bicolor. From galls collected on ground in Oct 1938 adults emerged Mar 20-Apr 7, 1940; Mar 16-Apr 7, 1941; Mar 23 and Apr 21, 1942.

"like Adleria nigricens"

Quercus lyrata
Leaf galls, detachable
Midrib cluster like Adleria nigricens. In fall.

Andricus nigricens (Gillette), comb. nov.