Callirhytis attigua

Quercus texana [buckleyi]
Leaf galls, detachable
Globular, smooth, 6-8 mm in dia, attached to petiole, dropping in Oct.

[Photo caption]
On Q texana [buckleyi]. Most had dropped by Oct 26. Adults emerged Aug 20-Sept 23 the next year.

Callirhytis attigua, new species

Host. — Quercus texana.

Gall (fig. 23). — Spherical, 6-9 mm. in diameter, produced in the fall, attached to the side of the petiole just below the leaf blade and dropping when mature. They are red in color and fleshy inside without a separable larval cell.

Habitat. — The type galls were collected at Boerne, Tex., October 25, 1917, when most of the galls had already dropped to the ground under the clumps of small trees growing on the slopes of limestone hills. The galls were sent to the Eastern Field Station at East Falls Church, Va., for rearing where adults emerged August 20 to September 23, 1918. Galls were also seen at Kerrville and were nearly full grown on July 21.