288 



EXPLANATORY INDEX. 



Wood-eating flies, Xylophagites, Xylophagites, an order of Dip- 



an order of Diptera, 225 tera, 225 



Xyphidrites, an order of Hyme- 



Xy elites, an order of Hymenop- noptera, 241 



tera, 241 



Xyleutites, an order of Lepidop- Yponomeutites, an order of Lepi- 



tera, 213 doptera, 214 



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