Neuroterus laurifoliae (agamic)

Synergus lignicola

Andricus coronus (agamic)

Andricus wheeleri (agamic)

Neuroterus laurifoliae Ashmead

Specimens of the galls of this species were collected by Dr. Mel. T. Cook in Illinois on the leaves of the shingle oak (Quercus imbricaria) and by Miss Annette F. Braun at Cincinnati, Ohio, on the same kind of tree. Heretofore it was known from Florida, on the laurel oak (Quercus laurifolia). 

Andricus davisi sp. nov. [Beutenmuller's wasp was later recognized as an inquiline of Callirhytis quercusgemmaria.]

Gall: Polythalamous. Brown, sometimes speckled with pale brown. Smooth or somewhat roughened. Globular, irregularly rounded or somewhat elongate. They are single or in clusters, or a number of them coalesce forming a large knot-like mass. They are very hard, solid and woody, and contain many larval cells. The individual gall measures from 4 to 15 mm. in diameter, and the knot-like mass measures about 40 mm. in width.

The gall occurs singly or in clusters of from two to about twenty individuals around the twigs and branches of scrub oak (Quercus nana [ilicifolia]). They sometimes coalesce and form a large knot-like mass, not unlike [Andricus cornigerus](https://www.gallformers.org/gall/821), but without the horn-like projections which characterize the latter. The galls reach maturity late in September and the flies emerge the following spring. The flies are very distinct and may be known by the very rough, transversely rugose thorax and the absence of the median groove at the scutellum. 

Habitat.- Lakehurst, New Jersey. September. 

Andricus coronus sp. nov.

Gall.---Monothalamous. Pale green; soft when fresh, hard and pithy when dry. Rounded, somewhat crown-shaped, with prominent ridges at the side from the base, meeting at the apex; base pointed. Thick walled, with a large round larval cell in the center.

Length 8-12 mm; width 6-12 mm

Habitat.--Bronx Park, NYC, May 18 1905; Atlanta GA; Mississippi

The gall may be found in New York, in clusters on the small terminal twigs of Quercus palustris during the middle of May, and in GA on water oak [Quercus nigra] during March. When mature, they drop to the ground or will readily break off when touched. The imago becomes fully developed in the gall by October, but does not emerge until the following spring. 

Andricus wheeleri sp. nov.

Gall.--Polythalamous. Brown with a grayish tint, hard and woody. Irregularly rounded or elongate, somewhat potato-shaped. Measures from about 14 to 20 mm. in width and from 15 to 30 mm. in length. 

Habitat.- Coconino Forest, rim of the Grand Canion, Arizona; altitude 7,000 feet. (William M. Wheeler). 

The galls of this species occur around the smaller twigs of an unknown species of scrub oak. They somewhat resemble Andricus medullae and batatoides Ashmead, but the fly is different. The flies may be distinguished by the divergent anterior lines, absence of the median groove from the scutellum, and rufous color. It is allied to Andricus medullae Ashmead. 

Notes on a few North American Cynipidae, with descriptions of new species