01036cam a22002651 4500 agr51000324 DLC 20260227111015.0 900515s1951 dcub f000 0 eng c agr51000324 (OCoLC)23999741 U.S. Dept. of Agric. Libr. PU WU DLC premarc n------ HD1751 .A918 no. 2 1Ag84 AM no. 2 595.79 Muesebeck, Carl Frederick William, 1894- Hymenoptera of America north of Mexico : synoptic catalog / prepared cooperatively by specialists on the various groups of hymenoptera under the direction of C.F.W. Muesebeck, Karl V. Krombein and Henry K. Townes. Washington : United States Government Printing Office, 1951. 1420 p. : fold. map. ; 24 cm. United States. Dept. of Agriculture. Agriculture monograph ; no. 2. Supplement, no.- issued Sept. 1958-- Hymenoptera North America. 11340 11340