. Insects . ambycidae, and Buprestidae. By J. M. ; and Silphida?. By H. ^ . ^ CoccaneUida^, Elateridse, ChrysomeUdsp, and Rhynchophora (excluding Ipidse).By C. W. Leng. Dystiscida;. By J. T). Sherman, Jr (Issued December 12, 1919). Part F: HEMIPTERA. By Edward P. Van Duzee .,. (Ismed July 11, 1919). Part G: HYMENOPTERA AND PLANT GALLS. Sawflies. (Tenthredinoidea). ^--By Alex. D. MacGiUivray. Parasitic Hymenoptera. By Charles T. Brues. Wasps and Bees. By F. W. L. Sladen. Plant Galls. By E. Porter Felt (Issued November 8, 1919).. PartH: SPIDERS, MITES, AND ^
. Insects . ambycidae, and Buprestidae. By J. M. ; and Silphida?. By H. ^ . ^ CoccaneUida^, Elateridse, ChrysomeUdsp, and Rhynchophora (excluding Ipidse).By C. W. Leng. Dystiscida;. By J. T). Sherman, Jr (Issued December 12, 1919). Part F: HEMIPTERA. By Edward P. Van Duzee .,. (Ismed July 11, 1919). Part G: HYMENOPTERA AND PLANT GALLS. Sawflies. (Tenthredinoidea). ^--By Alex. D. MacGiUivray. Parasitic Hymenoptera. By Charles T. Brues. Wasps and Bees. By F. W. L. Sladen. Plant Galls. By E. Porter Felt (Issued November 8, 1919).. PartH: SPIDERS, MITES, AND ^ By J. H. By Nathan By Ralph V. Chamberhn (Issued July 14, 1^19). Part I: LEPIDOPTERA. By Arthur Gibson (7n press). Part J: ORTHOPTERA., By E. M. Walker. GENERAL OBSERVATIONS ON INSECT LIFE IN THE ARCTIC. By Frits Johaiisen (In preparaiionl. REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME III: INSECTS PART F: HEMIPTERA By EDWARD P. VAN DUZEE SOUTHERN PARTY—1913-16. OTTAWA J. de LABROQUERIE TACHfi PRINTER TO THE KINGS MOST EXCELLENT MAJESTY 1919 Vol. iii—54698—1 Issued July 11th, 1919 Hemiptera of the Canadian Arctic Expedition By Edward P. Van Duzee. The small collection of Hemiptera taken b}^ the Canadian Arctic Expeditioncontains representatives of eleven species of which one is certainly new toscience and is here described as Euscelis hyperboreus, and another is a Siberiansaldid now first reported from North America. The softer Homoptera andMiridae are in many cases too much changed by their immersion in alcohol toadmit of positive identification. All the specimens recorded here woie takenby Mr. F. Johansen during the progress of the Expedition. Ligyrocoris constrictus Say. One specimen taken at Ketchikan, Alaska, September 10, 1916. Thisspecies has been found throughout Canada and the northern United States fromthe Atlantic to the Pacific Oceans. Stenodema vicinum Provancher. A single individual taken with the preceding. It i
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