80 DIPTERA 01 NORTH AMERICA. [PART ll. 



white; eilia of tin 1 inferior orbit Murk ; cilia of the tognhe >\ liito. Long. 

 OOTpt 0. 17. Long. al. 0. 1. r >. 



!Stn. Doliohopus laticornis Loow, Nouo Keitr. VI 11, 12, 2. 



Pace white, rather broad for a male. Antenme black; the 

 third joint Large and broad, ovate; arista inserted upon its second 

 third. Front metallic green. The cilia of the inferior orbit, 

 black. Lamellse of the hypopygium rather small, of a trapezoidal 

 Form, the upper and apical margin arc but very little bordered 

 with black; their margin is not jagged but only fringed with 

 minute black hairs. Tip oi' the coxa 4 yellow. Femora: black, 

 with a Taint greenish reflection and yellow tip. Tibiae yellowish. 

 (The middle tibia* are wanting in the described specimen.) Tlui 

 tip oi' the hind tibia 1 , which are not thickened at all. is black. 

 Pore tarsi from the tip of the first joint black; hind tarsi entirely 



black; the first joint is beset with a few thorn-like bristles. Hind 

 femora, before the tip with a stout bristle. Tegulse with whitish 

 cilia. Wings hyaline; the costa but, scarcely thickened about, t ho 

 tip of* the first longitudinal vein; the end oi' the fourth longitu- 

 dinal vein converges towards the third. 

 I lab. Connecticut. (Norton.) 



B. Cilia off he inferior orbit pair. 



3. I>. sHUVir Losw. %. — Obsoure yiridis, pedum nigrorum tibiis an- 

 terioribus postioarumque dimidio basali flavis, faoie alba, oiliia ooulorum 



inforioribus togularununio eiliis albidis, niotatarso postieo valde setoso. 



Dark green; feet blaok, the four anterior tibia* and the basal half of the 

 two hind ones yellow ; faoe white ; tbo oilia of the lower orbit, and of the 

 tegul» whitish: the fust joint o( the bind tarsi with many thorn-like 

 bristles. Long. eorp. 0.17. Long. al. 0.15, 



Syn. Dolichopus setifer Loow, None Beitr. VIII, 12, 3. 



Face silvery-white, narrow. Antenme black, third joint short. 

 .Front metallic green. The cilia of the inferior orbit whitish. 

 The lamellae of the hypopygium whitish ; their long apical margin 

 is finely jagged only below and fringed with long bristles, above 

 Only finely hairy ; its lower corner has a narrow black border. 

 The black femora show a green reflection and have a elayish-yel- 

 low tip; the hind femora have a bristle before their tip and are 

 ciliated on their under side with long black hairs ; the four anterior 

 tibise are clayish-yellow ; the first joint»of the four anterior tarsi 



