Neuroterus favosus

Category: Gall involving or attached to the lamina of the leaf
Galls making a sort of thickened and elevated area in the lamina
The platform is made by a single polythalamous gall.

Hosts: Q. tinctoria [velutina], Ohio; Q. palustris, Q. rubra, Mass.

Description: Irregular, pustular, elevated area.

Callirhytis favosa
sexgen

Neuroterus favosus

Produce leaf galls on Quercus palustris, velutina

Range: NY, PA, MD, VA, OH

Callirhytis favosa

Quercus palustris, rubra, velutina
Leaf galls, integral
A parenchyma thickening projecting on both sides of leaf, inner structure in cross-section suggests a honeycomb, not succulent, Adults emerge in late July or August.

[Photo caption (no photo)]
On Q palustris, velutina, rubra. Adults emerged Aug 2-9 (DC). A cross section thru gall suggests a honeycomb.

Neuroterus favosus

Flattened, polythalamous leaf galls projecting from both surfaces of the leaf diameter 6 to 24 mm, the upper and lower surfaces resembling a honey comb, on Quercus tinctoria [velutina].

Neuroterus favosus n. sp.

Flattened, polythalamous galls on the leaves of Quercus tinctoria [velutina] varying in lateral diameter from one-fourth to almost an inch; they project from both surfaces of the leaf, but more prominently from the upper surface; their vertical diameter is not more than one-fourth of an inch. The upper and under surfaces, especially the first, bear a very close resemblance to a honey-comb. This resemblance is more striking after the insects have left, when the upper surface is literally full of holes. In general appearance they resemble the galls of N majalis Bass., but when green they are less succulent, and when dry they are of an extremely hard, ligneous texture, while the others are soft and pith like. I collected old galls in September, 1888, from a single oak tree in Rockport, Ohio.