TY  - BOOK
AU  - Muesebeck,Carl Frederick William
TI  - Hymenoptera of America north of Mexico: synoptic catalog 
T2  - United States. Dept. of Agriculture. Agriculture monograph
AV  - HD1751 .A918 no. 2
U1  - 595.79 
PY  - 1951///
CY  - Washington
PB  - United States Government Printing Office
KW  - Hymenoptera
KW  - North America
N1  - Supplement, no.-    issued Sept. 1958--
ER  -