AMERICAN UIPTERA. 239 



than the femora. Wings long and narrow, with numerous small 

 white spots in the following species ; the second and third veins 

 undulating, the third vein forked, sometimes a cross-vein connects 

 the second vein with the anterior branch of the third vein ; discal 

 cell long, emitting three veins to the wing margin ; basal and anal 

 cells small, separately closed, the anal cell a little longer than the 

 second basal ; anal angle poorly developed. 



Ardoptera irrorata Fallen. 

 Fallen, Empid., 13, 17. 

 Meigen, Syst. Beschr., iii, 66, etc. 



Black, legs ferruginous. Palpi small, white. Antennae black. Front black, 

 margined with glistening white. Thorax cylindrical, black, as long as the abdo- 

 men, with a median white irridescent vitta. Abdomen black. Halteres white. 

 Wings brown, with scattered white dots. 2.5 mm. 



Europe and North America ( Loew). 



RCEDEltlODES Coquillett. 

 Face bare, not separated from the cheeks by a groove ; cheeks 

 two-thirds as broad as the eye height ; proboscis nearly as long as 

 the height of the head, rigid, the labella not developed ; third joint 

 of the antennae oval, pointed at the apex, the apical style about as 

 long as the remainder of the antenna ; no acrostichal bristles, scu- 

 tellum bearing bristly hairs in addition to the two marginal bris 

 ties ; wings destitute of a brown stigmal spot, third vein forked, dis- 

 cal cell complete, sending two veins to the wing margin, of which 

 the upper vein is forked, hind cross-vein very oblique, vein at apex 

 of the anal cell nearly perpendicular, sixth vein not prolonged be- 

 yond apex of the anal cell ; legs slender, destitute of bristles and of 

 long hairs, pulvilli and empodia well developed. 



Rcederiodes juncta Coquillett. 

 Bull. New York State Mus., 1901, No. 47, p. 586. 



Black, the coxae and femora yellow, tibiae and tarsi brown ; head whitish prui- 

 nose, the front and upper part of the occiput grayish black ; thorax opaque ; 

 mesonotum grayish black pruiuose, an elongated spot in front of the scutellum, 

 and the pleura whitish pruinose ; five pairs of dorso-central bristles; scutellum, 

 except its extreme base, gray pruiuose, abdomen opaque, almost velvety ; wings 

 grayish hyaline, unmarked. 2.5 mm. 



New York (Needham). 



The very poorly described H&tnerodromia albipes Walker may 

 possibly be this species. 



TEANS. -VM. ENT. SOC, XXVIII. JULY, 1902. 



