October, '11] FELT: GALL MIDGE HOSTS 467 



Leaf Galls 

 Leaf edge galls. 



Gall a folded leaf edge between serrations Ilonida foliora Rssl. & Hkr, 



Similar gall, possibly identical Ceddomyia erubescens O. S. 



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 podagroe Felt. 



Gall very similar to, if not identical with the above. . . Cincticornia majalis O. S. 

 Elongate, pocket-like swellings along midrib of round-leaved scrub oak. 



Clinodiplosis florida Felt. 

 An elongate fold gall close to the midrib on the under surface, length, 12 mm.; 



diameter, 1 mm.; on Querciis tinctoria Ceddomyia, oruca Walsh. 



A large midrib fold with a conspicuous white pubescence. 



Ceddomyia nivdpila O. S. 

 Globose or subglobose, thickened, usually reddish, galls. 



Reddish, oval, irregular, wrinkled leaf gall, diameter, 3 to 4 mm. 



Cincticornia piluloe Walsh. 

 A similar gall, apparently Southern, possibly made by the same species. 



Cincticornia symmetrica O. S. 

 Gall similar to though much smaller than that of Cincticornia piluloe. 



Dasyneura florida Felt. 

 Reared from oak, presumably from a gall resembling that made by Cynips. 



Thecodiplosis quercifolia Felt 

 • A subhemispheric, brown, slightly nippled, monothalamous gall on the under 



side of the leaf, diameter, 1.75 ffm Cincticornia globosa Felt. 



Globular gall, diameter, 4 mm. on under side of running oak leaf. 



Youngomyia querdna n. sp. 

 Flattened, pustulate or blister galls. 



A flat, relatively inconspicuous, probably blister gall . . Cincticornia querdfolia Felt. 

 A slight circular, blister-like swelling on the lateral veins, length, 3 mm., 



diameter, 1 mm Cincticornia americaiia Felt. 



A broadly, yellow margined, circular, blister gall, diameter, 3 mm. 



Cincticornia serrata Felt. 

 A variable brown, irregularly oval, pustulate swelling, 5 to 6 mm. in diameter. 



Cincticornia pustulata Felt. 

 An irregularly oval, pustulate swelling, 5 to 6 mm. in diameter, showing equally 



on both surfaces but with no nipple Cincticornia simpla Felt. 



Reared from a similar gall Cincticornia sobrina Felt. 



Probably reared from oak leaves Dicrodiplosis quercina Felt. 



Twig Galls 

 Reared from twigs of white oak, Quercus alba Lasioptera querdperda Felt. 



Stems 



Under decaying bark Leptosyna querci n. sp. 



Miastor americana Felt. 

 Itonida dncta n. sp. 



Rhododendron nudiflorum (purple azalea) 

 Fusiform, brownish bud gall, length, 7 mm Asphondylia azalece Felt. 



