1C 
Xenhormomyia Felt Ins. 238 
Xenoceraspis Arrow Ins. 130 
Xenocoenosia Malloch Ins. 257 
Xenofulvius Bergroth Ins. 267 
Xenomydaea Malloch Ins. 257 
Xenophorbia Malloch Ins. 257 
Xenosphingia Jordan Ins. 198 
Xenostryxis Qirault Ins. 188 
Xenotrochalus Arrow Ins. 130 
Xcnufens Qirault Ins. 188 
Xesmatia Timberlake Ins. 188 
Xiphaspis Marshall Ins. 156 
Xyloscopa Meyrick Ins. 234 
Yania Boewer Arachn. 24 
Ylasoia Speiser Ins. 251 
Yparicum A chard Ins. 124 
Yramea Reuss Ins. 194 
Zabrachypus Cushman Ins. 181 
Zachobiella Banks Ins. 237 
Zaphanaula Meyrick Ins. 234 
Zaporota Banks Ins. 235 , 
Zatilpa Dyar Ins. 218 
Zebratula Sjostedt Ins. 288 
Zelanion Chamberlin Myr., Arachn. 32 
Zelanodesmus Chamberlin Myr., Arachn. 
37 
Zelanophilus Chamberlin Myr., Arachn. 
32 
Zelleriella Metcalf Prot. 30 
Zelma Andrewes Ins. 112 
Zostericola Ashby Moll. 34 
Zygobarella Casey Ins. 156 
Zygodrosophila llendel Ins. 263 
Zygostrophus Chamberlin Myr., Arachn. 
37 
