Xystoteras nigrum

Quercus alba
Leaf galls, detachable
Depressed sphere, 3.5 by 1.8 mm on under side of leaf, with a white bloom. Sept. VA.

[Photo caption]
On Q alba. From galls collected in Sept. adults were found in breeding cage Feb 15 the second spring which agree with the types.

A depressed sphere 3.5 by 1.8 mm on under side of leaf of Q alba in VA in Sept; covered with a white bloom (as det. Weld).

Biarhiza nigra, new species

[listed in the "affecting the root" section on "Quercus alba, etc" but not specified where it was collected or what if any association it might have with any galls. Section description implies the adult wasps leave galls in the roots, climb the tree, mate on the snow, and return to the roots to oviposit.]

Acraspis politus n. sp.

[Wasp described without gall]

Washington County, MO

I have no galls, and am not informed whether they were captured at large or reared from galls.

Phylloteras nigrum

Host: Quercus alba

Small (3.5 mm) depressed, spherical galls on underside of leaves of Q alba

Distr: VA

Biorhiza nigra

Biarhiza nigra
Biorrhiza nigra
Xystoteras nigra

Habitat: NY

This species is unknown in collections and I do not seem to recognize it from the description [of the adult only; no gall]. The type is lost.