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XEW YORK STATE MUSEUM 



Wild cherry pouch gall, 152, 155 

 Wild hydrangea, 131 

 Wild lettuce galls, 211, 212 

 Wild sensitive plant, 152 

 willistoni, Lasioptera, 127, 128 

 Willow apple gall, 32, 34 

 Willow blister gall, 31, 33 

 Willow borer, mottled, 37, 40 

 Willow-cabbage gall, 31 



small, 31 

 Willow egg gall, 36 

 Willow gall, beaked, 29 



clustered, 30, 32 



nodule, 36 



scarred, 36 

 Willow lipped gall, 33 

 Willow pea gall, 32, 34 

 Willow-pod midge, 32 

 Willow potato gall, 35, 36 

 Willows, 29 

 wiltzae, Andricus, 75 

 Winnertzia aceris, 160 



hudsonici, 138 



pectinata, 53 



pinicorticis, 15 

 wislizeni, Andricus, 68 

 Witch-hazel cone gall, 132 

 Witch-hazel family, 132 

 Witch-hazel gall, spiny, 48, 50, 131, 132 

 Woad-waxen, 154 

 Wood nettle, 125 

 Woodbine, 165 

 Woodbine root gall, 165 

 Woodbine seed wasp, 165 

 Woodbine vein gall, 165, 166 



Wool sower, 72 



Woolly bud midge, 204 



Woolly elm louse, 119, 120 



Woolly fig gall, 67, 71 



Woolly fold gall, 80, 82 ' 



Woolly tube gall, 72 



Woolly wormwood gall, 207, 208 



Wormwood, 208 



Wormwood flask gall, 210, 212 



Wormwood flower midge, 208 



Wormwood gall, woolly, 297. 208 



Xylotrechus aceris, 161 

 Xystoteras volutellae, 85, 92 



Yam, 2S 



Yarrow, 207 



Yarrow flower midge, 207 



Yellow blister gall, 194 



Yellow sea urchin, 93 



yosemite, Andricus, 68 



Youngomyia quercina, 92 



umbellicola, 188 



vernoniae, 189 

 Yucca, 27 



Yucca pod midge, 27 

 yuccae, Dasyneura, 27 



I^estodiplosis, 27 



Zauschneria, 173 



zauschneriae, Thecodiplosis, 173, 174 



Zizia, 174 



ziziae, Lasioptera, 174 



Zopheroteras vaccinii, 85, no 



Zygophyllaceae, 156 



