INTRODUCTION 23 



including several interesting beetles, such as the beautiful 

 Pachyta liturata Kirby and Anaspis rufa Say, both of which 

 were taken at the flowers of Ligusticum scoticum. 



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 Epilobiiim spicatum, including 

 Bonibus coupcri Cr., B. oregonensis 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 

 parvuhts (Pack.) and Blcpharipus ater (Cr.), both of which oc- 

 cur upon the flowers of Achillca. 



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

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

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

 nigricollis Kirby, T. crythromera 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 Picris, 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 \vere collected Megalocera 

 nificornis Fallen, Mccomma giht'pcs Stal, Lygus pratcnsis L., 

 Nysius gronlandicus Ts&k^Nabis flavomarginis sibcricus Reuter, 

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

 the sweep net Deltocephalus harrimani sp. nov. Ashmead, 

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

 Psylla alaskensis 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- 



