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  1. A synopsis of common and economic Illinois ants, with keys to the genera (Hymenoptera, formididae) [by] Herbert H. Ross, George L. Rotramel and Wallace E. Laberge.
    By: Ross, Herbert Holdsworth, - LaBerge, Wallace E. - Rotramel, George L.,
    Publication info: Urbana, Ill.,Natural History Survey Division1971.
    Contributed by: University of Illinois Urbana Champaign
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