INTRODUCTION 33 



including several interesting beetles, such as the beautiful 

 Pachyta Jiturata Kirby and Anaspis rufa Say, both of which 

 were taken at the flowers of Ltgusttcum scottcum. 



Of Hymenoptera, as usual, the most conspicuous representa- 

 tives were the bumble-bees, of which no less than five species 

 were taken from the flowers of Epilobium spicatum, including 

 JBombus couperi Cr., B. orcgoncnsis Cr., B, polaris Curtis, B. 

 sylvicola Kby., and Psithyrus insularis (Smith). None of the 

 other families of bees were represented, so far as discovered, 

 but of the Sphegoidea two examples came to hand, Ectemnius 

 parvtilus (Pack.) and Blepharipus ater (Cr.), both of which oc- 

 cur upon the flowers of Achillea. 



The only saw-flies collected belong to the genus Tcntkredo, of 

 which seven species were taken T. ferrugineipes Cr., T. 

 varipicta Nort., T. evansii Hgtn., T. flavomarginis Nort., T. 

 nigricollis Kirby, T. erythromera Prov., and T. melanosoma 

 Hgtn. The Kenai Peninsula would seem to be almost the 

 western limit of some of these species of Tenthredo, since very 

 few were found at Kukak, to the westward. 



Of parasitic Hymenoptera, the collection includes only nine 

 species, of which Mr. Ashmead has described eight as new. 



Two butterflies and two moths compose the list of Lepidoptera. 

 One of the butterflies was the common Pieris, the other was 

 Chrysophanus dorcas Kirby and occurred in great numbers at 

 the flowers of Comarum palustre. 



The series of Hemiptera taken at Seldovia was unexpectedly 

 large. Of Heteroptera six species were collected Mcgalocera 

 ruficornis Fallen, Mecomma gilvipes Stal, Lygus pratensis L., 

 Nysius gronlandicus 7izVi.,Nabis flavomarginis sibericus Reuter, 

 and Aradus sp. Of Homoptera, four species were taken in 

 the sweep net Deltocephahis harrimani sp. nov. Ashmead, 

 Cicadula scxnotata (Fallen), Cicadula fasciifrons (Stal), and 

 Psylla alaskcnsis sp. nov. Ashmead. 



Dragon-flies were quite common along the margin of a small 

 lake near camp, but seemed to be all of the single species 

 Enallagma calverti Morse. 



Very little attention was paid to the collection of spiders, on 

 account of lack of time, but the group seemed to be well rep- 



