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Article XV. NOTES ON THE DISTRIBUTION AND BIBLIO- 

 GRAPHY OF NORTH AMERICAN BEES OF THE 

 FAMILIES APID^, MELIPONID^, BOMBID.E, 

 EUGLOSSID.^, AND ANTHOPHORID^ 

 By Frank E. Lutz and T. D. A. Cockerell 

 CONTENTS 



PAGE 



Introduction 491 



Apidae 492 



Meliponidae 492 



Bombida; 502 



Euglossidae 544 



Anthophoridse 549 



Centrinae 549 



Anthophorinae 569 



Eucerinae 593 



Bibliography 629 



Addendum 641 



INTRODUCTION 



It was our original intention to prepare a simple check-list of North 

 American bees, but the Uterature is so scattered and a locaUty record 

 without a knowledge of the authority upon which it is based is so un- 

 satisfactory that we decided to include our bibliographic notes (especially 

 on papers published after 1896) and to publish at present only the records 

 for certain families of higher bees. These notes are not intended to lie a 

 complete bibhography of the subject. In general, we have not given a 

 reference unless it added to our knowledge of distribution, and, in sum- 

 marizing a reference, we have usuallj' left out the parts that are repeti- 

 tions or mere confirmations of previously published data. We think our 

 records are practically complete up to at least 1919. No taxonomic name 

 is given with a reference if the author used the one adopted by us here. 

 A. type locality is designated by an asterisk. It would have delayed too 

 greatly the publication of this list to have attempted gathering unpub- 

 lished records from specimens in various colle<.'tions. The American 

 Museum of Natural History would, however, be glad to have copies of 

 such records. 



Distribution is not merely spatial; distribution in time is also 

 important. For that reason we have, for the most part, included the 

 months (indicated by Roman numerals) in which adults were found and, 



491 



