18 
AMERICAN SPECIES OF ARADUS (iIEMIPTERA) 
species. 1 aiipend a list of the institutions and individuals whose 
valued assistance has made it possible to assemble this adecpiate 
representation of the group. In returning the material to the 
various owners, 1 have provided most of the specimens with a 
dated label, so that it will always be possible for future students 
to recognize those which were studieil in connection with this 
investigation. 
Academy of Natural Sciences of Philadelphia (H. Skinner). 
American Museum of Natural History (F. E. Lutz). 
Boston Society of Natural History (C. W. Johnson). 
Brooklyn Institute of Arts and Sciences (Ck Schaeffer). 
Cornell University, including the Heidemann Collection (J. C. 
Bradley). 
Illinois State Laboratory of Natural History (C. P. Alexander). 
University of Kansas (C. P. Alexander and H. B. Hungerford). 
Louisiana Experiment Station (T. H. Jones). 
Massachusetts Agricultural College (H. T. Fernald). 
University of Michigan (F. M. Caige). 
University of Minnesota (H. H. Knight). 
Museum of Comparative Zoology (N. Banks). 
National Collection, Ottawa (C. C. Hewitt, A. Gibson, J. 
McDonnough). 
North Carolina Agricultural Experiment Station ( IL W. Leiby). 
Ohio State University (H. Osborn). 
South Dakota State College (H. C. Severin). 
United States National Museum (E. H. Gibson). 
Frost, C. A. 
(Jerhai'd, W. J. 
Hussey, U. F. 
Marchand, W 
Barber, H. G. 
Bergroth, E. 
Davis, Win. T 
Down(!S, W. 
Drake, C. J. 
Dury, ('. 
McAtee, W. L. 
Moore, G. A. 
Olsen, C. E. 
Osborn, H. 
Buhmann, M. H. 
Slosson, Mrs. A. U. 
Uorre-Bueno, J. H. d(' la 
Van Duzee, E. P. 
Wirtner, M. 
