TA-BLE OF CONTENTS IX 



Article 



Porter, Bennet A. American wasps of the genus Sceliphron 



King. No. 2650, pp. 1-22. December 1, 1926 ^ T 



Richmond, Charles W. Generic names applied to birds 

 during the years 1916 to 1922, inclusive, with additions to 

 Waterhouse's "Index Generum Avium." No. 2664, pp. 

 1-44. April 6, 1927^ 15 



Riley, J. H. A collection of birds from the provinces of 

 Yunnan and Szechwan, China, made for the National Geo- 

 graphic Society by Dr. Joseph F. Rock. No. 2654, pp. 1-70. 

 October 23, 1926 ' 5 



Shannon, Raymond C. A review of the South American 

 two-winged flies of the family Syrphidae. No. 2658, pp. 

 1-34. April 29, 1927 ^ 9 



New genera: Claraplumula, Calostigma, Alipumilio, Halictomyia, 

 Fazia, Valdivia. 



New subgenus: Pelecinobaccha, 



New species: Xanthandrus flavomaculatus, Braziliana peruviana, 

 Claraplumula latifacies, Calostigma elnora, Allograpta piurana, 

 Baccha {Pelecinobaccha) peruviana, B. {Baccha) micropelecina, B. 

 {B.) punctata, B. (B.) hirta, Alipumilio femoratus, Halictomyia 

 boliviensis, Eumyiolepta braziliana, Quichuana knabi, Habromyia 

 flavifacies, Mallota inversa, M. nigra, M. aberrans, Microdon 

 (Ubristes) lacteipennis, M. {U.) trigoniformis, M. (U.) goettei, M. 

 (U.) fraudator, M. (U.) scutellaris, M. scolopus, M. maculatus, M. 

 nigrispinosus, M. batesi, Alloggrapta pulchra, Fazia bullaephora, 

 F. australis, Syrphus reedi, Scaeva occidentalis, B. filiola, B. felix, 

 Valdivia darwini, V. nigra, V. ruficauda. 



New name: Mesogramma philippi. 



' Date of publication. 



