1929] 
Vespa ducalis, 271 
Vespa magnifica, 271 
Vespa mandarinia, 271 
Vespa mongolica, 271 
Vespa nigrans, 271 
Vespa vulgaris, 271 
Vespcexenos buyssoni, 271 
Vespcexenos moutoni, 271 
Vespcexenos lama, 271 
Vespinae, 270 
Viola, 114 
Volucella bombylans arctica, 139 
Wasmannia auropunctata, 89 
West Indian Dolichopodidae, 37 
Xenillus clypeator, 125 
Xenillus clypeator and its Identity, 
125 
Xenoglossa strenua, 117 
Xenos argentinus, 265 
Xenos bonariensis, 270 
Xenos bruneri, 263 
Xenos hubbardi, 265 
Xenos hunteri, 263 
Xenos jurinei, 267 
407 
Xenos maximus, 266 
Xenos nigrescens, 264 
Xenos pallidus, 264 
Xenos peckii, 266 
Xenos pecosensis, 266 
Xenos rossii, 267 
Xenos rubiginosi, 266 
Xenos texani, 266 
Xenos vesparum, 267 
Xiphydria, 377 
Xy loco pa transit oria, 279 
Xylota aristata, 374 
Xylota ejuncida, 373 
Xylotomina chalybea, 374 
Xylotomina curvipes var. satanica, 
374 
Xylotomina pigra, 374 
Xylotomina plesia, 374 
Xylotomina vecors, 374 
Zaperdita mama, 116 
Zethinae, 251 
Zethus pubescens, 251 
Zetkus romandinus , 251 
Zethus spinipes var. variegatus, 251 
Zonites elliotti, 106 
Index 
