Townes 1945. A cata-logue and reclassification of the Nearctic Ichneumonidae (Hymenoptera). Part II. The subfamilies Mesoleiinae, Plect-iscinae, Orthocentrinae, Diplazoninae, Metopiinae, Ophioninae, Mesochorinae. Memoirs of the American Entomological Society, No. 11 1945: pp. 479-925