WASP GENUS CERCERIS — SCULLEN 341 



Stanford University, Palo Alto, Calif. 



State Plant Board of Florida, Gainesville, Fla. 



Sul Ross State College, Alpine, Tex. 



Texas Agricultural and Mechanical University, College Station, Tex. 



United States National Museum, Washington, D.C. 



University of Alberta, Edmonton, Alberta, Canada 



University of Arizona, Tucson, Ariz. 



University of Arkansas, Fayetteville, Ark. 



University of British Columbia, Vancouver, B.C., Canada 



University of California, Berkeley, Calif. 



University of California, Davis, Calif. 



University of California, Los Angeles, Calif. 



University of California, Riverside, Calif. 



University of Colorado, Boulder, Colo. 



University of Georgia, Athens, Ga. 



University of Idaho, Moscow, Idaho 



University of Kansas, Lawrence, Kans. 



University of Kentucky, Lexington, Ky. 



University of Massachusetts, Amherst, Mass, 



University of Miami, Coral Gables, Fla. 



University of Michigan, Ann Arbor, Mich. 



University of Minnesota, St. Paul, Minn. 



University of Nebraska, Lincoln, Nebr. 



University of Utah, Dugway Proving Grounds, Tooele, Utah 



University of Wisconsin, Madison, Wis. 



University of Wyoming, Laramie, Wyo. 



Utah State University, Logan, Utah 



Washington State University, Pullman, Wash. 



West Virginia University, Morgantown, W. Va. 



Materials from the personal collections of the following persons 

 have been loaned for study: Rollin W. Baker, J. Bequaert, George E. 

 Bohart, Kichard M. Bohart, Duis D. Bolinger, E. R. Buckwell, 

 Walter Carter, Margaret L. Cook, Kenneth W. Cooper, Richard Dow, 

 R. R. Dreisbach, Carl D. Duncan, George R. Ferguson, H. T. 

 Fernald, Roland L. Fischer, J. E. Gillaspy, C. H. Hicks, Harry A. Hill, 

 Gordon A. Hobbs, Paul D. Hurd, H, E. Jaques, Stanley G. Jewett, 

 Wyatt W. Jones, Karl V. Krombein, Roy Latham, Howard L. Mc- 

 Kenzie, C. D. Michener, H. E. Milliron, Reginald H. Painter, H. B. 

 Parks, L. P. Rockwood, Vmcent D. Roth, C. W. Sabrosky, P. H. 

 Timberlake, and M. Wasbauer. 



Acknowledgments.— Financial assistance which has made possible 

 studies in the tribe Cercerini over the past thirty years has come from 

 two sources. Grants of variable amounts have been received for many 

 years from the General Research Council, Oregon State University, 

 Corvallis, Greg. In more recent years three separate and substantial 

 grants have been received from the National Science Foundation. 

 These latter grants have made it possible to take two extensive 

 collecting trips into Mexico (1956, 1957), to make an extended trip 



