The following bibliography has been generated by automated services. BHL uses taxonomic intelligence tools to locate, verify, and record scientific names located within the text of each digitized page in the BHL digital collection.
|Proceedings of the Biological Society of Washington. ; v. 74 [Incomplete] - 75 (1961-1962)||1882||Washington,Biological Society of Washington||1|
|Hymenoptera of America north of Mexico : synoptic catalog, second supplement / ; no.2:suppl.2||1967||Washington, D.C. :U.S. Dept. of Agriculture,1967.||1|
|Trap-nesting wasps and bees: life histories, nests, and associates [by] Karl V. Krombein. ;||1967||Washington :Smithsonian Press,1967.||2|
|Catalog of hymenoptera in America north of Mexico / prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein ... [et al.]. ; vol. 2||1979||Washington :Smithsonian Institution Press,1979-||1|
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