I^DEX 



609 



Willow, 225. 

 Winter-gnats, 234. 

 Wireworms, 397. 

 Worms, 217. 



X 



Xanthotype, 129. 



crocataria, 131. 

 Xiphura, 192, 194-195. 



fumipennis, 195. 

 Xylocopa, 391. 



opifex, 394. 



virgini'ca, 394. 

 Xylomyia, 340-342, 346. 



americana, 341, 343, 344. 



aterrima, 341, 343. 



maculata, 340. 



pallidifemur, 341, 343-344. 



pallipes, 341, 342-343. 



parens, 341, 343. 



tenthredinoides, 342, 344. 

 Xylomyiinas, 317, 340-344. 

 Xylophagidfe, 164, 175, 308, 309, 311, 

 313, 314, 341, 346-351, 352. 



Xylophagus, 347-348. 



abdominalis, 347, 348, 351. 



americanus, 343. 



decorus, 348. 



fasciatus, 348. 



gracilis, 348. 



longicornis, 348. 



lugens, 347, 348, 349-351. 



Xylophagus — Continued. 



persequus, 348. 



reflectens, 348. 



rufipes, 348. 



triangularis, 348. 

 Xylorictidse, 105. 



Yponomeuta, 97. 

 malinellus, 98. 

 padellus, 98. 



Yponomeutidas, 69, 71, 96, 97-9S, 99, 



100, 106. 

 Yponomeutoidea, 26, 32, 96-98, 147, 



148. 

 Ypsolophus, 102. 

 citrifoliellus, 103. 

 eupatoriellus, 103. 



Zabrachia, 335, 340. 

 polita, 340. 



Zale, 118. 



calycanthata, 118. 

 lunata, 118. 



Zelleria, 97. 

 celastrusella, 98. 



Zeuzera, 41. 

 pyrina, 41. 

 Zeuzerinse, 41. 

 Zygoptera, 411-587. 



