6 ALASKA INSECTS 



MenyantheS) the principal visitors were Eristalis occidcntalls 

 Will., Neoascia globosa L., and Mclanostoma nielli num (L.). 

 At NcphrophylUdium the only insect taken was Mclanostoma 

 mcllinum (L.), while at Sieversia a number of Muscidas were 

 captured, as well as one species of Syrphidas (Mclanostoma 

 Irichophus Thomson). In the spathes of Lysichiton^ a beetle 

 (Donacia femoralis Kby.) was found at work devouring pollen, 

 and here also occurred the fly, Syrphus ribesii L. 



Sweeping brought to light a number of Diptera hidden in the 

 grass and herbage, including five Tipulidre, of which two were 



s^H^lg 



FIG. I. JiETLAKATLA. 



new (Tipula strigata Coq. and Tipula gel i da Coq.) ; three 

 species of Empidas, all of which were new (Empis fumida Coq., 

 Rhamphomyia glauca Coq., and Rhamphomyia anthracodcs 

 Coq.) ; and two species of Dolichopodidae, Dolichopus longi- 

 manus Loew being especially abundant. Of the Muscidas, the 

 most interesting were Orthochccta piJosa (Zett.), a European 

 species not previously known from America, and (Edoparca 

 glauca Coq., a new species of Sciomyzida?. 



With the exception of water beetles, the Coleoptera do not 

 thrive in very marshy places, only six species being found, and 

 these of an uninteresting character, except Stcnus umbratilis 

 Casey, which was new to Alaska, although known from British 

 Columbia. The same may be said of the Heteroptera, since 



