A second revision of the chalcid flies of the genus Harmolita (Isosoma) of America north of Mexico, with descriptions of 20 new species

A second revision of the chalcid flies of the genus Harmolita (Isosoma) of America north of Mexico, with descriptions of 20 new species

by W. J. Phillips

Book 518 of Technical bulletin / United States Department of Agriculture --

1936

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