TABLE OF CONTENTS 



Article 



xVldrich, J. M. North American two-winged flies of the genus 

 Cylindromyia Meigen (Ocyptera of authors) No. 2624. 

 pp. 1-27. May 29, 1926 1 23 



New species: Cylindromyia campressa, C. nigra, C. alticola, C. 

 bakeri, C. imlffaris, C. decora, C. armnia, C. unifomtis, C. 

 limbata. 



Alexander, Charles P. Crane flies from the Maritime Prov- 

 ince of Siberia. No. 2605, pp. 1-21. December 11, 1925 K. 4 



New species: Dicranomyia amurensis, Rhipidia (Motwrhipidia) 

 sibirica, Pcdicia cockerelU, Rhaphidolabina isibirica, Molophilus 

 lobiferus, Erioptera {Erioptera) fuscohalterata, Rhabdomastix 

 (Sacandaga) usmiensis, Tipula cockerelUana, T. ligulifera, 

 T. amurensis, T. uHuriensis, T. sibiriensis. 



New subspecies : PseudoUmnopliila ochracea asi^atvca. 



Ali^x, Harry W. North American species of two-winged 

 flies belonging to the tribe Miltogrammini. No. 2610. pp. 

 1-106. May 27, 1926^ 1 9 



New si)ecies : Puchyophthalmus hinei, P. distortu'^, Setvotainia 

 setuh'costa, Opsidia metopioides, Metopia opaca, M. inermis, 

 M. fesselJata, M. latcropili, M. sinipalpis, Phrosinella fumosa, 

 P. aldrichi, P. pilosifrons, Eumacronychia montana, E. sternalis, 

 E. nigricornis, E. roliiceri, E. elongate, Gymnoprosopa flHpalpKS, 

 G. pallida, G. inflaticornis. 



Bassler, R. S. {See Ulrich, E. O.) 



Rezzi, Mario. A new genus and species of Borborid flies 

 from South America. No. 2621. pp. 1-6. May 13, 1926 K^ 20 

 New jjeniis : Pycnopota. 

 New species: Pjicnopota inanni. 

 CiiApiN, Edward A. Descriptions of new internal parasites. 



No. 2603. pp. 1-4. November 14, 1925 1 2 



New sixicies: (Joiitracarcinn txrgidiim, (■. magnipapiJJaium. 



Coc'KERELL, T. D. A. Some Halictine bees from the Maritime 

 Province of Siberia. No. 2607. pp. 1-12. December 23, 

 1925 1 6 



New species: HalicfK-s moltrcrhti, IJ. kralofft., H. nolovleffi, H. 

 lutzenkoi, II. icittcnhonrgi, If. .^hinhkini, II. cuieliatioffi, H. trans- 

 poHitus, 77. futihcnxis, 77. suprafttlgens, II. .wlcatuliit, 77. pe>-- 

 plexans, 77. brack yccphdlus, II. Irichorhinus. 



New variety: Halictns pcrplexans, var. spaculiiins. 



' Date of publication. 



