774 CHARLES PauL ALEXANDER 
The collection of Mr. M. C. Van Duzee, Buffalo, New York. This collection is very 
rich in local and Floridian species, and includes the type of Geranomyia vanduzeei. 
The collection of the author, Urbana, Illinois. This includes a good representation of 
local forms and many extra-limital species. The types of many of the species described 
by the author are in this collection. 
In addition to those named above, there have been examined several 
collections made by students in systematic entomology at Cornell Uni- 
versity during the past few years. The more notable of these are the 
collections of Dr. W. T. M. Forbes, and Messrs. J. T. Lloyd, 8S. W. Frost, 
E. A. Richmond, W. C. Woods, and Hachiro Yuasa. The following very 
considerable collections, made in different parts of the country, have been 
of great value in determining the range of North American species: 
The two Beutenmiiller collections, one in the American Museum and the other in the 
collection of Dr. Dietz; from the Black Mountains, North Carolina. 
The Nathan Banks collections, from the same locality and from northern Virginia. 
The Karl P. Schmidt collection, made in Louisiana. 
The J. Chester Bradley collections, made in Georgia, New York, and the West. 
The R. C. Shannon collections, from the vicinity of Washington, D. C. 
The Axel Olsson collections, from North Carolina and New York. 
The H. H. Knight collections, from- western New York. 
The H. M. Parshley collections, from Maine and Massachusetts. 
The Cordelia Stanwood collections, from Hancock County, Maine. 
Collections made in the vicinity of Georgian Bay, Ontario, by Dr. W. A. Clemens in 1912, 
by Mrs. John D. Tothill in 1914, and especially by Mr. H. S. Parish in 1915. 
The Bryant Newfoundland specimens in the collection of Mr. Johnson. 
Material from near Washington, D. C., and from Maine, collected by Mr. W. L. McAtee. 
The Ely (Connecticut) and Weidt (New Jersey) material in the collection of Dr. Dietz. 
The extensive collections made in Bergen County, New Jersey, by Mr. M. D. Leonard. 
Specimens collected by Oslar (Colorado), Munz (Colorado), and Woodgate (New Mexico), 
and other material in the collection of the author. 
To all the above-mentioned persons the author expresses his sincere 
gratitude for the privilege of seeing these specimens and obtaining the 
records. 
In addition to the collections that the writer has been able to visit, 
there are several others of high repute — the collection in the Carnegie 
Museum (Pittsburg, Pennsylvania), the private collection of Mr. Charles 
Dury (Cincinnati, Ohio), the collections of the Illinois State Labora- 
tory of Natural History and the University of Michigan, and others — 
