AUTHORITIES. 



OSTEN-SACKEN, C. R. Biol. notes on Diptera, article second: 1. A new 



american A^/>li/n!i//i(( 2. On some undescribed galls ofCecidomyia. 



-In the Trans. Am. Entom. Soc. Vol. Ill, p. 5154; 187071. 



Biol. notes etc., article third: 1. Cccirlomiiiu , living in pine-resin 



(Dijilosis rcniiiicaln n. sp.). 2. A gall of Cecidomyia on a wild 



cherry-tree. 3. Additions and corrections. - - In the Trans. Am. 



Entom. Soc. Vol. Ill, p. 345347; 187071. 



A list of the Leptidae, Midaidae and Dasypogonina of North- 

 America. - - In the Bulletin Buffalo Soc. Nat. Sc. October 1874. 

 TJiree new species of Midas. 



Additions and corrections to this list are given in the same 

 Bulletin, November 1875, p. 71. (This List is of course entirely 

 superseded by the present publication). 



Prodrome of a Monograph of the North-American Tabanidae. 

 In the Memoirs of the Boston Society of Natural History, Vol. II, 

 187578. 



Part I. The genera Fanrionia, Clirysops, Silvius, Hdcinntopoiti, 

 Dirtlasis (1. c. p. 365397'. 



Part II. The genus Talanus, with an Appendix and Index 

 (1. c. p. 421479). 



Supplement (1. c. p. 555 560\ 



Report on the Diptera, collected by Lieut. W. L. Carpenter in 

 Colorado during the summer 1873. - - In Dr. Ilayden's U. S. 

 Geological and Geographical Survey of Colorado for 1873. 

 Washington, 1874 ip. 561566). 



Bibioc&phdla yrmulis, n. gen. and sp. 



Three new galls of Cecidomyiae. In the Canadian Entomologist, 

 November 1875. 



Cecid. verrucicola (on Tilia americana); Cecid. urnicola (on 

 Urtica>; Asphoiulylia recoitdita (on Aster patens'), nor. sp. 

 Note on some Diptera from the Island Guadalupe, Pacific Ocean, 

 collected by Mr. Palmer, -- In the Proceed. Boston Soc. of Natural 

 History, October 1875. - - No new species. 



On the North- American species of the gen is Syrphus (in the narrowest 

 sense). _ I n Proc. Boston Soc. Nat. Hist. October 1875, p. 135153. 

 N. sp. Syrplim (imalvpis, contumax, torvus (= topiarius Zett.), 

 rectus (= ribesii Lin.) 



A list of North-American Syrphidae. - - In the Bulletin Buffalo 

 Soc. Nat. Sc. November 1875, p. 38-71. - 



In the Appendix, descriptions of nine new species. Additions 

 and corrections to this list are given in the same Bulletin, May 

 1876, p. 130. (This List is entirely sup.rseded by the present 

 Catalogue; oven the notes, added to it, are reproduced here). 

 f , Report on the collection of Diptera made in portions of Colorado 

 and Arizona during the year 1873. - - In Lieut. Geo. M. Wheeler's 

 Report upon the Explorations and Surveys West of the one hundredth 

 Meridian; Vol. V, Zoology, p. 804807. Washington 1875. 

 N. sp. Lasia Kkttii. 



