Macrodiplosis erubescens

Polystepha podagrae

Macrodiplosis majalis

Macrodiplosis qoruca

Macrodiplosis niveipila

Polystepha pilulae

Polystepha symmetrica

Polystepha globosa

Polystepha quercifolia

Polystepha americana

Polystepha serrata

Polystepha pustulata

Polystepha simpla

Polystepha sobrina

Asphondylia thalictri

Itonida foliora

Leaf edge galls
Gall a folded leaf edge between serrations

Cecidomyia erubescens

Similar gall, possibly identical

Cincticornia podagrae

Vein galls
A narrow, dark purplish, fusiform, thin-walled swelling on the under side of the mid or lateral veins may contain two or more orange larvae, length, 8 mm.

Cincticornia majalis [this description differs from those given in other sources and should be viewed skeptically]

Vein galls
Gall very similar to, if not identical with [the above](https://www.gallformers.org/gall/1194). [A narrow, dark purplish, fusiform, thin-walled swelling on the under side of the mid or lateral veins may contain two or more orange larvae, length, 8 mm.]

Clinodiplosis florida [an inquiline]

Vein galls
Elongate, pocket-like swellings along midrib of round-leaved scrub oak [Quercus ilicifolia?]

Cecidomyia oruca

Vein galls
An elongate fold gall close to the midrib on the under surface, length 12 mm; diameter 1 mm, on Quercus tinctoria [velutina]

Cecidomyia niveipila

Vein galls
A large midrib fold with a conspicuous white pubescence

Cincticornia pilulae

Globose or subglobose, thickened, usually reddish galls
Reddish, oval, irregular, wrinkled leaf gall, diameter 3 to 4 mm.

Dasyneura florida [inquiline]

Globose or subglobose, thickened, usually reddish galls
Gall similar to though much smaller than that of Cincticornia pilulae

Cincticornia symmetrica

Globose or subglobose, thickened, usually reddish galls
A similar gall [to Polystepha pilulae], apparently Southern, possibly made by the same species. [P pilulae: Reddish, oval, irregular, wrinkled leaf gall, diameter 3 to 4 mm.]

Cincticornia globosa

Globose or subglobose, thickened, usually reddish galls
A subhemispheric brown slightly nippled monothalamous gall on the under side of the leaf, diameter 1.75 mm

Cincticornia quercifolia

Flattened, pustulate or blister galls
A flat, relatively inconspicuous, probably blister gall

Cincticornia americana

Flattened, pustulate or blister galls
A slight circular, blister-like swelling on the lateral veins, length, 3 mm, diameter 1 mm.

Cincticornia serrrata

Flattened, pustulate or blister galls
A broadly yellow margined, circular, blister gall, diameter 3 mm.

Cincticornia pustulata

Flattened, pustulate or blister galls
A variable brown, irregularly oval, pustulate swelling, 5 to 6 mm in diameter.

Cincticornia simpla

Flattened, pustulate or blister galls
An irregularly oval, pustulate swelling, 5 to 6 mm in diameter, showing equally on both surfaces but with no nipple.

Cincticornia sobrina

Flattened, pustulate or blister galls
Reared from a similar gall [to [P simpla](https://www.gallformers.org/gall/1202): An irregularly oval, pustulate swelling, 5 to 6 mm in diameter, showing equally on both surfaces but with no nipple.]

THALICTRUM (meadow rue)

Enlarged seed pods, length, 8 mm. .......... Asphondylia thalictri n. sp. 

Hosts and galls of American gall midges