Parasitism of the European Pine Sawfly, Diprion (Lopbyrus Simile Hartig, Hymenoptera, Tenthredinidae, in Pennsylvania

Author: HARTLEY E. A.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.16, Iss.4, 1923-08, pp. : 386-388

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