INTRODUCTION 19 



The Dolichopodidre included Dolichopus plumipcs (Scop.), 

 previously taken at Sitka, and Porphyrops consobrmus Zett., a 

 European form not previously recorded from the American con- 

 tinent. 



Other interesting Diptera were : Tclmatogcton alaskcnsis sp. 

 nov. Coquillett, a strange Chironomid representing a genus not 

 previously known to exist in America ; seven species of Tipu- 

 lida;, including Tipula cincracca sp. nov. Coquillett ; Boletina 

 inops sp. nov. Coq., one of the Mycetoph'ilidae ; Phytomyza 

 favicornis Fallen, a European species of Agromyzidte not pre- 

 viously known from America. 



The Coleoptera were not abundant, but, by dint of tearing off 

 loose bark and turning over fallen timber, 43 species, mostly 

 Staphylinidae, were gathered. None of these proved to be of 

 special interest, but several were found to be new to the fauna 

 of Alaska, including Stcmis insularis Casey, Orobanus simu- 

 lator Lee, and Dityhis quadricollis Lee. 



No butterflies were observed at Yakutat, and very few moths 

 appear in the collection. 



Only one representative of the Apoidea appeared — Bombus 

 mi.xtnosus sp. nov. Ashmead. Tenthredinidse were compara- 

 tively rare. Five species of Tenthrcdo were secured, but all 

 had been previously found at Sitka, namely, T. varipicta Nort., 

 T. evansii Hgtn., T. jlavomarginis Nort., T. erythromera 

 Prov., and T. melanosoma Hgtn. Two new Nematids were 

 taken in the sweep net — Pachyncmatiis oronits Kincaid and 

 Ptcronus zebratus Kincaid. The parasitic Hymenoptera com- 

 prised eighteen species of Ichneumonoidea, of which Mr. Ash- 

 mead has described seventeen as new. 



The Neuropteroids yielded five species, of which three proved 

 new. Spiders were not common, only twelve species appearing 

 in the collection, but of these two have been described as new 

 by Mr. Banks. 



VIRGIN BAY, PRINCE WILLIAM SOUND 



June 25-26. — A stop of a little over twenty-four hours at this 

 point was hardly long enough to make extensive collections, 

 hence the list from Virgin Bay includes only 78 species, of 

 which the majority are Diptera. 



