Abstract
During the period 1920-1933 numerous specimens of a dozen odd species of scolioid wasps were imported from the Orient and liberated in the northeastern United States for control of the introduced Popillia japonica Newm. [Japanese beetle], Anomala orientalis Waterh. [oriental beetle], Autoserica castanea (Arrow) [Asiatic garden beetle] and Serica peregrina Chapin. Subsequent to 1933 liberations were made of Tiphia castaneaevora Parker, T. popilliavora Rohwer, T. stemata Parker and T. vernalis Rohwer only.
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