234 NORTH AMERICAN ANTHOMYIID FLIES OF GENUS PHAONIA 



This genus is known to me only from South America. The 

 genotype is flaviihorax (Stein) , but there are some other species 

 from South America which are referable to the genus. 



Both this and the preceding genus have a bristle between the 

 notopleurals, and the third vein setulose below beyond the inner 

 cross-vein. It may be necessary to unite the genera if the females 

 have the orbital bristling identical. 



PSEUDOPHAONIA Malloch 



Generic characters. — Similar to Phaonia sens. str. in having the 

 eyes hairy, prealar bristle long, hind tibial calcar present, third 

 wing-vein bare at base, and fourth vein not curved forward at 

 apex. Differs in having the pteropleura with numerous long 

 erect hairs in center, and the hypopleura bare. 



Genotype, Pseudophaonia orichalcea (Stein) Malloch. 



Synopsis of Species 



Both sexes with the fourth abdominal tergite golden pollinose; hind femur of 

 male bare on ventral surface, the posteroventral surface with some fine 

 erect hairs on basal half and a few bristly hairs at apex; narrowest part of 

 frons decidedly wider than third antennal segment; mid tibia with ten to 

 twelve posterodorsal and posteroventral bristles orichalcea (Stein) 



Male with gray pruinosity on fourth as well as preceding tergites, female 

 unknown, but undoubtedly as male in this respect; hind femur of male with 

 moderateh' long erect fine hairs on entire length of ventral and postero- 

 ventral surfaces; narrowest part of frons not as wide as third antennal 

 segment; mid tibia with about eight posterodorsal and three posteroventral 

 bristles griseocaerulea new species 



Pseudophaonia orichalcea (Stein) 



Aricia orichalcea Stein, Berl. Ent. Zeitschr., 1897, p. 186. 



Male and female. — Shining blackish blue, or black with a bluish tinge, 

 rather densely grayish pruinescent. Frons opaque black, orbits, parafacials, 

 face, and anterior third and the narrow upper margin of cheeks with golden 

 pollinosity; antennae and palpi black. Thorax distinctly quadri\ittate. 

 Abdomen with a slender dorsocentral vitta and lateral checkerings black, 

 the basal three tergites gray pruinescent, the fourth golden polUnose. Legs 

 black. Wings sUghtly grayish. Calyptrae white, with black hairs at outer 

 ^ngle of upper calyptra. Haltercs black in male, brown in female. 



Male. — Eyes not densely, but distinctly hairy; frontal orbits narrow, 

 Tiristled on their entire length, the two ujjpermost bristles on each orbit di- 

 rected backward, some fine hairs along the inner side of orbits on ui)per half 

 or more; arista plumose; cheek somewhat similar to tliat of species of the 



