Occasional, found on Eucarya hickories, but not east of the Appalachians, except in New England; usually found singly, attached to vein on lower leaf surface; 4-6 mm in length, horizontal, elongate, straight, narrowing gradually from rounded base to pointed apex; white, green, to tan, with stiff, sparse white hairs not obscuring surface; base of gall with central conical pedicel in shallow, circular indentation; wall firm, brittle, uniformly thin, larval chamber glabrous with longitudinal ridges following gall axis from leaf vein connection to apex. The gall is generally similar to that of C. spinulosa, q.v. for further remarks about similar galls.
Carya | floridana, glabra, laciniosa, myristiciformis, ovata, pallida, texana, tomentosa |
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Texture | hairy |
Alignment | supine |
Detachable | yes |
Location | leaf midrib, leaf veins (including midrib), lower leaf |
Walls | thin |