258 NORTH AMERICAN ANTHOMYIID FLIES OF GENUS PHAONIA 



as both were taken by Professor Hine. A female with the label, 

 "Algonquin Park," evidently belongs here. 



Phaonia errans variety completa new variety 



Male. — Differs from tiue errans in having all the femora and tibiae rufous 

 yellow, and the short spines on anteroventral and posteroventral margins 

 of the intermediate segments of mid tarsi continued to bases of segments. 

 There is also only one pair of praescutellar acrostichals i^resent. 



Length, 8 mm. 



Type.—Ba,se Station, Mt. Washington, New Hampshire^ 

 August 15, 1916, (C. W. Johnson), [Boston Society of Natural 

 History]. 



Phaonia errans variety varipes Coquillett 



Hyetodesia varipes Coquillett, Proc. Wash. Acad. Sci., ii, p. 441, 1902. 



This form differs from true errans only in having the femora 

 more extensively darkened, the fore and mid pairs in male being 

 almost entirely infuscated. There are neither chaetotaxic nor 

 structural distinctions which warrant its separation from true 

 errans, and it is in my opinion merely a variety of that species. 



I have examined a male and female paratype sent to me from 

 the National Museum Collection by Dr. Aldrich, and have also 

 seen a male from Kuskokwim Valley, Alaska. 



Phaonia deleta Stein 



Aricia deleta Stein, Berl. Ent. Zeitschr., 1897, p. 178, 1897. 



Male and female. — Black, slightly shining, densely gray, pruinescent. 

 Anterior margin of frons, parafacial, and a large part of cheeks, antennae, 

 except apical two-thirds of third segment, and palpi reddish yellow. Thorax 

 with four fuscous vittae. Abdomen with an elongate blackish spot on middle 

 of each tergite; fourth tergite in both sexes conspicuously yellowish testa- 

 ceous at apex; fifth sternite in male partly yellowish. Legs testaceous yellow; 

 coxae anteriorly, fore femora on posterodorsal surface, and the tarsi more or 

 less conspicuously, infuscated. Wings hyaline, veins brown, yellowish basally, 

 cross-veins slightly clouded. Calyptrae whitish yellow. Halteres yellow. 



Male. — Eyes sparsely hairy; frons at narrowest part distinctly wider than 

 width across posterior ocelli; orbits with setulose hairs from base of antennae 

 to anterior ocellus, the upper setulae weak and short; intcifrontalia entire; 

 parafacials at base of antennae a little wider than third antennal segment, 

 not narrowed below; cheek twice as high as width of parafacual, with some 

 long biistles along lower margin and a single series above them which are 

 strong and upwardly curved anteriorly; third antennal segment narrow, ending 

 considerably short of the mouth-margin, about 1.75 as long as Second; longest 

 hairs on arista much longer than width of third antennal segment; palpi not 



