8r> THE CANADIAN ENTOMOLOGIST. 



taken in California, as well as a number that have been taken in Alaska. 

 Some of the species are known to occur all along the coast from 

 California to Alaska, and are thus proven to have a wider range than most 

 species are supposed to have. Pedicia obtusa and Tabaniis Sonomensis 

 were described from California ; I have identified them from British 

 Columbia, and Coquillett reports them from among the material taken in 

 Alaska by the Harriman Expedition. Other species in the list may be 

 shown to have the same or even a much wider range. 



Only two species of mosquitoes are included in the list, and we have 

 two others not yet determined, but this does not indicate that there is a 

 dearth of these insects in the region, for Dr. Dyar has recently published 

 a paper in the Proceedings of the Entomological Society of Washington, 

 in which he enumerates twenty species from British Columbia. This 

 serves to show us that there is plenty of opportunity for entomological 

 work in this interesting region, and that the most interesting results are 

 obtained by taking a small group and thoroughly collecting the forms 

 belonging to it. 



The Tabanid?e of British Columbia, as well as from the western 

 United States, are a perplexing lot, and I have spent much time working 

 on them, sometimes with satisfactory results, sometimes otherwise. 

 Excellent characters have been found for some of the species, but for 

 others the distinguishing marks are not apparent as yet. It seems that 

 some of the species are quite variable, and that there are more species 

 described than can be differentiated. Nearly all the species of Tabanus 

 belong to the sub-genus Therioplectes, only two of those received having 

 the eyes nonpubescent. In California Tabanus pundifer and cegrotus 

 occur together, but although I have repeatedly received the latter from 

 British Columbia I have never known of a record for the former. 



The family Leptid?e is represented by a number of interesting 

 forms. Xylomyia parens, Will., appears to be rather commonly met 

 with. The two specimens before me were taken at Vancouver on June 

 2 1 St and July 4th. The species looks something like some of the sawflies, 

 and can easily be confounded with them by the inexperienced. The 

 species of Symphoromyia are said to bite severely, and are therefore some- 

 what of an annoyance to the collector and to stock in that region. 



I have been interested in studying Rhynchocephalus Sackenii, Will., 

 for it is surely an interesting form, and represents a family not commonly 

 met with in North America. I have seen only one specimen, and that 



