. Insects . By H. C. Fall. Coccinellidse, Elateridse, Chrysomehdse, and Rhynchophora (excluding Ipida)). By. C. W. By J. D. Sherman, {Issued December 12,1919) Part F: HEMIPTERA. By Edward P. Van Duzee {Issued July 11, 1910). Part G: HYMENOPTERA AND PLANT GALLS. Sawflies. (Tenthredinoidea). By Alex. D. MacGillivray. Parasitic Hymenoptera. By Charles T. Brues. Wasps and Bees. By F. W. L. Sladen. Plant Galls. By E. Porter Felt {Issued November S, 1919). Part H: SPIDERS, MITES, AND By J. H. By Nathan By Ralph V. ChambtTliii {

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. Insects . By H. C. Fall. Coccinellidse, Elateridse, Chrysomehdse, and Rhynchophora (excluding Ipida)). By. C. W. By J. D. Sherman, {Issued December 12,1919) Part F: HEMIPTERA. By Edward P. Van Duzee {Issued July 11, 1910). Part G: HYMENOPTERA AND PLANT GALLS. Sawflies. (Tenthredinoidea). By Alex. D. MacGillivray. Parasitic Hymenoptera. By Charles T. Brues. Wasps and Bees. By F. W. L. Sladen. Plant Galls. By E. Porter Felt {Issued November S, 1919). Part H: SPIDERS, MITES, AND By J. H. By Nathan By Ralph V. ChambtTliii {Issued July U, 1919). ^Part I: LEPIDOPTERA. By Arthur Gibson {Issued January 10, 1920). Part J: ORTHOPTERA. By E. M. Walker {Issued Sepetember 4, 1920). Part K: GENERAL OBSERVATIONS ON INS1]CT LIFE IN THE ARCTIC. Bv Frits Johansen {In preparation) REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME III: INSECTSINTRODUCTION ANDLIST OF NEW GENERA AND SPECIES COLLECTED BY THE EXPEDITION By C. GORDON HEWITT. OTTAWA THOMAS MULVEX-PRINTER TO THE KINGS MOST EXCELLENT MAJESTY 1920 Is« December 10, 1920 REPORT OF THE % CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME III: INSECTS PART K: INSECT LIFE ON THE WESTERN ARCTIC COAST OF AMERICA By FRITS JOHANSEN

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