Ulex 66 



Ulmaceae 325 



Ulmus sp 60 



americana 263 



Unifolium canadense 269, 287, 297 



Urceolus 414 



Urticaceae 325 



Vacciniaceae 329 



Vaccinium vacillans 278, 280, 299 



Vagnera raecmosa 275 



Valerianaceae 335 



Vascular Plants, Ohio (Index). ... 239 



Verbascum thapsus 289 



Verbenaceae 332 



Verhoeff, cited -.. 17 



Verrall, cited 12, 



13, 15, 38, 62, 63, 64, 65, 

 66, 67, 68, 69, 70, 71, 72, 73, 74 



Vespa 40, 48 



crabro 62, 68 



diabolica 37 



germanica 68 



maculata 37 



vestitm-e of adults 49 



of larvae 23 



Viburnum acerifolium.... 269, 274, 280 



Viola blanda 269, 275 



canadensis 275 



hirsutula 299 



palmata 275 



pubescens 275 



rostrata 275 



Violaceae 318 



Vitaceae 324 



Vitis bicolor 280 



Volucella 12, 



16, 28, 37, 38, 39, 40, 47, 49 



avida 68 



bombylans 68 



evecta 37, 89 



fasciata 68, 90 



pellucens 68 



vesiculosa 90 



Volucellinae 15 



Walker, cited 12 



Walton, L. B., article by 343 



wasps 25, 40 



Webster, F. M., cited 63 



Weidemann, cited 12 



Westwood, cited 72 



Wheeler, W. M., cited 11, 



17, 21, 27, 28, 40, 47, 49, 62 



Williston, S. W., cited 



12, 14, 15, 33, 34, 38 



willow 34 



black 55 



wing-pads 31 



Woodsia illevensis 286 



XanthogTamma 39 



aequalis 87 



emarginata 66, 87 



felix 87 



flavipes 87 



Xylota 28, 35, 39, 64 



bicolor 94 



curvipes 94 



elongata 95 



flavitibia 94 



fraudulosa 95 



marginalis 95 



pigra '72, 95 



Xyridaceae 313 



Yerbury, cited 66 



459 



