1044 



AN INTRODUCTION TO ENTOMOLOGY 



Wood-nymph, beautiful, 693; pearl, 



693 



Workers, 988 

 Wyeomyia smithii, 810 



Xenopsylla cheopis, 882 

 Xenos vesparum, 549 

 Xestolniini rufovillosum, 515 

 Xiphidiiim, 238 

 Xiphosura, 8 



Xiphydria maculata, wings of, 898 

 XiphydriidcB, 890, 893, 897 

 Xyelidaj, 890, 893, 894 

 Xylocelia {Diodontus) , 968 

 Xylocopa virginica, 955, 981 

 Xylomyia, 832; X. pallipes, 832 

 Xylomyiidse, 786, 788, 832 

 XylophagidEe, 786, 789, 833 

 Xylophagus, 833 ; wing of, 833 



Yellow-bear, 703 

 Yellow-fever mosquito, 809 

 Yellow-jackets, 960, 958 

 Yellows, the, 748 



Yellow, sleepy, 749 

 Yponomeula, 632; Y. padella, 633 

 Yponomeutidas, 580, 582, 590, 591, 



631 

 Yucca-borer, 734 

 Yucca-moths, 599; bogus, 600 



Zale lunata, 689 



Zebra, the, 764 



Zebra-caterpillar, 694, 695 



Zenodochium coccivorella, 629 



Zethinae, 949, 951 



Zethiis, 951; Z. cyanopterus , 952; Z. 



lobiilatus, 952; Z. romandinus, 952; 



Z. slossoncB, 951; Z. spinipes, 951 

 Zerene ccesonia, 749 

 Zeuzera pyrina, 603 

 Zeuzerinae, 603 

 Zophodia grossularice, 652 

 Zoraptera, 214, 216, 218, 270 

 Zorotypidse, 270 

 Zorotypus, 270; Z. hubbardi, 271; Z. 



snyderi, 271 

 Zygoptera, 321 



