Callirhytis furva

Quercus catesbaei [laevis], falcata, ilicifolia, imbricaria, laurifolia, marilandica, myrtifolia, nigra, palustris, phellos, velutina
Leaf galls, detachable
Small cluster of globular galls, 3-4 mm. in dia., each covered with short, straight brown hairs, on upper side of leaf in fall.

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On Q marilandica. Probably on all the red oaks. Galls drop in Oct. Adults emerged the second and third springs Mar 20-29 (DC).

Callirhytis furva, new species

Small, somewhat globular galls, 3-4 mm in diameter covered with short, straight, stiff brown hairs, scattered along midrib or main veins on upper side of leaf in the fall and dropping off singly when mature. The hairs do not weather away during winter. Similar to galls of C infuscata on Quercus laevis in Florida., On Quercus catesbaei [laevis], coccinea, falcata, ilicifolia, imbricaria, laurifolia, marilandica, myrtifolia, nigra, palustris, phellos, velutina: Small cluster of globular galls, 3-4 mm in dia., each covered with short, straight brown hairs, on upper side of leaf in fall.