J. R. MALLOCH 257 



of errans, varipes, and nigricans has always some hairs on the 

 sides of the interfrontaUa. 



I have seen this species from Ohio, ^Montana, ^Massachusetts, 

 and Wisconsin, and have no dou]:)t that it is widely distributed 

 in the northeastern States. 



Phaonia errans Meigen 



Anthomyia errans Meigon, Syst. Beschr., v, p. 86, 1S2G. 



Male. — Black, slightly shining, densely gray pruinescent. InterfrontaUa 

 opaque black except when seen from in front; orbits, parafacials, and cheeks 

 with whitish tomentum or pile; face yellowish gray pruinescent; antennae and 

 palpi black. Dorsum of thorax with four l)iack vittae; scutellum largely 

 reddish yellow apically. Abdomen with an interrupted dorsocentral vitta 

 and lateral checkerings black; fifth sternite reddish j-ellow apically. Legs 

 rufous j-ellow, fore femora except apices, sometimes the bases of mid femora, 

 and all of tarsi fuscous. Wings sybhyaline, cross-veins slightly infuscated. 

 Calyptrae jellowish white. Halteres yellow. 



Eyes hairy, separated at narrowest part of frons l)y a distance less than 

 width of third antennal segment; orbits narrow, bristles on anterior half and 

 finely haired on posterior half almost to anterior ocellus; interfrontalia distinct 

 on entire length; parafacials a little wider than third antennal segment, but 

 little narrowed below; cheek twice as high as widest part of parafacial, with 

 bristly hairs on lower half and some setulose hairs above vibrissae; third 

 antennal segment twice as long as second; arista plumose. Thorax without 

 presutural acrostichal bristles; postsutural dorsocentrals four; prealar very 

 long; many hairs adjacent to notopleurals; hypopleura with some fine hairs 

 on upper margin in front of spiracle. Basal abdominal sternite hairy, fifth 

 deeply cleft. Fore tibia unarmed at middle; mid femur with about half a 

 dozen bristles on basal half of posteroventral surface, the fine hairs rather 

 long; mid tibia with two or three posterior bristles; mid tarsus with the short 

 spines on anteroventral and posteroventral margins of segments two to four 

 confined to apical halves; hind femur with a series of anteroventral bristles, 

 and usually one or two short bristles on middle of posteroventral surface; 

 hind tibia with two anterodorsal and three or four anteroventral bristles. 

 Outer cross-vein much curved. 



Female. — Similar to the male in color, but the fore femora are less con- 

 spicuously blackened. 



Eyes hairy, separated by about one-third of the head-witlth; interfrontalia 

 with some erect hairs on each side above. In other re-^pects as male. 



Length, 8 to 9.5 mm. 



Described from several males and one female received from 

 Scotland and Finland. Stein has recorded the species from 

 Sandusky, Ohio. I have before me a pair taken at Sandusky, 

 Ohio, which are evidently from the same lot as Stein's specimens, 



TRAXS. AM. EXT. SOC, XLVHI. 



