Neuroterus tantulus, new species

Small saucer-shaped galls occurring in large numbers attached by a broad base on under side of leaf in early summer. Individual galls measure 0.9-1.6 mm in diameter by 0.6-7 mm high, with an elevation in center of the concave free surface, brown, almost bare, dropping off when mature and leaving a scar 0.7 mm in diameter on the gall and a brown spot on the leaf.

Habitat.—Type locality. College Park, Md. On May 24, 1948, W. H. Anderson swept up a tablespoonful of the galls, which had fallen on a table under a heavily infested white oak tree. These were placed in a breeding cage on the ground outdoors and when examined on April 1, 1949, scores of adults had emerged and many had already died.

Neuroterus tantulus

Quercus alba, prinus [montana], stellata
Leaf galls, detachable
Saucer-shaped, 0.9-1.6 mm in dia, in numbers, on under side dropping in early summer leaving a scar on the gall and a brown spot on the leaf.

[Photo caption]
Saucer-shaped, 0.9-1.6 mm in dia, in numbers, on under side of leaf of Q alba dropping in early fall leaving a scar on the gall and a brown spot on the leaf.