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Published online by Cambridge University Press: 31 May 2012
Some recently discovered changes in nomenclature led to the preparation of a synopsis of the Nearctic species of Chloropisca, which is presented with notes upon the distribution as checked by the writer and a key to the eleven known species. Chloropisca sulfurifrons Duda is included with some doubt.
It is rather remarkable that among a group as common as Chloropisca so little is known regarding the life history and habits. Chloropisca glabra is the only species in which the life history is well known. Its larvae are predaceous upon root aphids,and are especially important predators of the sugar beet root aphis, Pemphigus betae Doane.
1 Journal Artide No. 259 (N.S.) from the Michigan Agriculturl Experiment Station.
2 The author is pleased to acknowledge the aid of Grant No. 352 from the Bache Fund of the National Academy of Sciences, which made possible the personal examinaton of the type specimens.