Hickory Beret Gall Midge
Caryomyia biretta
Gagne Description 2
Rare, on Eucarya hickories, but not E of Appalachian Mrs.; on lower leaf surface between veins; 2.5-3.0 mm high, depressed-spheroid, broad apical surface flat to slightly concave with central elongate nipple; hairless, not sticky, green to purple; base with central, shallow, central excavation, the leaf slightly convex and discolored on reverse side; larval chamber basal, depressed-ovoid, lined with yellowish membrane, contrasting with purple, woody tissue surrounding larval chamber, especially laterally. Exteriorly this gall simulates that of C. inflata except that the latter does not have the tassel at the apex. The internal shape of these two galls is very different with the larval chamber of C. biretta being surrounded by thick walls and that of C. inflata being thin walled and surmounted by a false chamber.
Sources and Credits
- (c) Adam Kranz, all rights reserved, uploaded by Adam Kranz
- (c) Adam Kranz, some rights reserved (CC BY-SA)
More Info
iNat Map
| Carya | floridana, glabra, laciniosa, myristiciformis, ovata, pallida, texana, tomentosa |
|---|---|
| Texture | hairless |
| Alignment | erect |
| Detachable | yes |
| Location | between veins, lower leaf |
| Walls | thick |
