86 NEW YORK STATE MUSEUM 



Elongate, oval, blisterlike leaf swelling without a nipple, on the under side, 

 length I mm, diameter .75 mm, onQ. platanoides. Fig. 80, 81, 2. 

 Beutm. 'loc, p. 121 



Cynipid. Oak blister wasp, Neuroterus papillosus Beutm. 

 Subelliptical, blister leaf gall, length 2 to 2.5 mm. Cal. Trotter '11, p. 108 



Cynipid. Neuroterus sp. 

 A broadly yellow-margined, circular, blister leaf gall, diameter 3 mm, on Q. 

 coccinea. Felt 'i6d, p. 154 



Itonid. Oak yellow-spot, Cincticornia serrata Felt 

 A variable brown, irregularly oval, pustulate leaf sweUing, diameter 5 to 6 mm, 

 on Q. velutina, Q. rubra. PI. 8, fig. 7. Felt 'i6d, p. 156 



Itonid. Oak blister midge, Cincticornia pustulata Felt 

 An irregularly oval, pustulate swelling showing equally on both leaf surfaces 

 but with no nipple, diameter 5 to 6 mm, on Q. rubra, Q. velutina. 

 See plate 8, figure 8 for similar galls. Felt 'i6d, p. 157 



Itonid. Cincticornia simpla Felt 



Irregularly oval, pustulate leaf swelling showing equally on both surfaces but 



with no nipple, diameter 5 to 6 mm, on Q. velutina. Felt 'i6d, p. 168 



Itonid. Cincticornia sobrina Felt 

 A slight, circular, blisterlike swelling of the lateral veins, length 3 mm, diameter 

 I mm. Felt 'o8e, p. 380, 381 



Itonid. Oak vein bhster, Cincticornia americana Felt 

 A fiat, relatively inconspicuous, presumably blister gall on Q. rubra. Felt 

 'i6d, p. 155 



Itonid. Cincticornia quercifolia Felt 

 Blister leaf gall, inconspicuous, greenish, diameter 4 to 5 mm, onQ. agrifolia 



Itonid. C e c i d o m y i a sp. a2905 



(6) Superabundant leaf hairs (erineum) or more or less distinct dimples 



A yellowish green dimple, convex on the upper surface of the leaf, lined within 

 with whitish or brownish hairs, on Q. alba. Chad, '08, p. 142 



Acarid. Eriophyes sp. 

 Very small, pocket galls, crowded on the upper surface of the leaf, on Q. p 1 a n - 

 tanoides. Chad. '08, p. 143 



Acarid. Eriophyes sp. 

 Galls on the leaves of burr oak, Q. macrocarpa. Parrott et al. '06, p. 289 



Acarid. Eriophj^es querci Garm. 

 Deformation of leaves on the margin, on Q. minor. Chad. '08, p. 142 



Acarid. Eriophyes sp. 

 A large, greenish yellow dimple, slightly convex above, beneath filled with a 

 dense, brown pubescence, onQ. macrocarpa. Chad. '08, p. 142 



Acarid. Eriophyes sp. 

 Greenish or reddish elevations on the upper surface, the concavity below nearly 

 filled with yellowish brown hairs, onQ. marilandica. Fig. 82. 



Acarid. E r i o p h \^ e s sp. 

 Brown erineum on the under side of the leaves, on Q. rubra. Chad. '08. 



P- 143 



Acarid. Eriophyes sp. 



Large patches of dense, brown hairs on the under side of the leaf, on Q. c o c- 

 c i n e a . Chad. '08, p. 142 



Acarid. Eriophyes sp. 



