CONTENTS. 



A Revision of the Mouth parts of the Corrodentia and the 



Mallophaga. By Robert E. Snodgrass . . . 297 



Notes on some Bees in the British Musuem. By. T. D. A. 



Cockerell 309 



Synopsis of Euceridse, Emphoridse and Anthophoridse. By 



Charles Robertson . . . . . . . 365 



Descriptions of new species of Neotropical Hymenoptera. By 



P. Cameron ........ 373 



Descriptions of four new species of Odynerus from Mexico. 



By P. Cameron ....... 389 



