Cynips quercus citriformis

Amphibolips citriformis

Cynipidae

Amphibolips

Quercus laurifolia

Alabama

Arkansas

Florida

Georgia

Louisiana

Maryland

Mississippi

North Carolina

Pennsylvania

South Carolina

Texas

Virginia

Quercus myrtifolia

Quercus phellos

Connecticut

Delaware

Illinois

Kentucky

Missouri

New Jersey

New York

Ohio

Oklahoma

Tennessee

Cynipid galls of the eastern United States

The species of Amphibolips and their galls

Amphibolips quercuscitriformis

Cynips quercus citriformis n. sp.

Host--Quercus phellos

The Lemon-like Gall of the Willow Oak

Galls.--Globular, smooth, shining yellowish galls, from seven-eighths to an inch in length, by three-eighths to half an inch in diameter, attenuated to a sharp point at tip and with a single kernel in the centre, held in place by a few thin, radiating, spiculate filaments. 

Described from three bred specimens which issued from galls during the first week in May. No males.

On the CYNIPIDOUS GALLS of Florida (1881)

Amphibolips citriformis

Cynips quercus citriformis

Gall. On the twigs of willow oak (Quercus phellos). Varying considerably in shape from narrow spindle shaped to globular, with the apex attenuated to a sharp point. Smooth, shining, yellowish, and rather thin shelled. Internally is a larval cell held in position by a few thin, radiating filaments. Length 12 to 24 mm; width 6 to 12 mm.

Habitat: FL

Amphibolips citriformis

Fusiform to subglobular, pointed, yellowish, thin-shelled twig gall with a fiber-supported cell, length 12 to 24 mm, diameter 6 to 12 mm, on Q phellos.

Key to American Insect Galls

Amphibolips citriformis

Quercus laurifolia, phellos
Bud galls
Spindle-shaped, thin-walled, 22 by 12 mm. A gall of early spring. FL

[Photo caption]
On Q phellos. Also on Q laurifolia. Adults issued the first week in May.

Amphibolips quercuscitriformis (Ashmead 1881)

Hosts: Quercus myrtifolia

[Asexual generation bud galls found in Florida in the spring.]

Using gall wasps on oaks to test broad ecological concepts