256 NORTH AMERICAN ANTHOMYIID FLIES OF GENUS PHAONIA 



It seems extremely probable that the species is closely related 

 to those with which I have associated it in the key, but only an 

 examination of the type specimen will definitely decide that 

 point. 



Phaonia aurea new species 



Female. — Reddish yellow, suliopaque. Frons, parafacials anteriorlj', 

 third antennal segment, and palpi fuscous; occiput gray pruinescent. Thorax 

 gray pruinescent, the dorsum with four reddish vittae. Abdomen with 

 golden pollinosity, dorsum checkered, the yellow parts changing according to 

 position from which the surface is viewed. Legs rufous yellow, tarsi fuscou-s. 

 Wings .slightly yellowish, cross-veins narrowly infuscated. Calyptrae and 

 halteres yellow. 



Frons at vertex one-third of the head-width, widened anteriorly; orbits 

 narrow, each with about six bristles and a series of hairs laterad of them; 

 eyes hairj^; parafacial at base of antennae wider than width of third antennal 

 segment, not much narrowed below; cheek about 1.5 as high as widest part 

 of parafacial; third antennal .segment twice as long as second; arista long 

 ])lumose; palpi normal. Thoracic chaetotaxy as in errans. Basal abdominal 

 sternite hairy. Fore tibia without a median posterior bristle; mid femur 

 with four or five bristles on basal half of posteroventral surface; mid tibia 

 with three or four posterior bristles; hind femur with a series of long bristles 

 on anteroventral surface, the posteroventral surface bare; hind tibia with 

 three or four anterodorsal and anteroventral bristles. Outer cro.ss-vein 

 curved; fourth vein straight at apex. 



Length, 11 mm. 



r?ype.— Washington State, (Coll. Coquillett), [U. S. N. M.]. 



Phaonia nigricans Johannsen 



Phaonia nigricans Johannsen, Trans. Amer. Ent. Soc, xlii, p. 395, 1916. 



Phaonia cayugae Johannsen, Ent. News, xxviii, p. 327, 1917. 



Phaonia nervosa Stein, Arch, fiir Naturges., abt. A, 191S, heft 9, p. 12 1920. 



Stein redescribed this species from material sent to him from 

 Ithaca, New York, the type locality of Johannsen's species. 



Johannsen proposed the species name cayugae to replace the 

 name nigricans, which has been used in the genus //^eZma (=Mydaea 

 Stein), but such course is not necessary as the name has not 

 previously been used in the genus Phaonia. 



The species is very closely allied to errans but differs very 

 much in color, the legs being usually entirelj' black, sometimes 

 with the hind tibiae reddish brown. This is the only means l)y 

 which the species may be separated, as in size and chaetotaxy 

 they are to all appearances identical. The frons in the f(Mnales 



