l<Jli] Atfxamtcr — Sew .\earctic Tlpulidae (.Diplera) 169 



Head: palpi dark, blackish, rostrum much paler brown; antcmia; short in both 

 sexes; scapal segments dark above, reddish-yellow underneath; flagellar segments 

 black. Front, vertex and occiput black with a grey pruinosity, most distinct behind 

 the eyes. 



Thorax: mesonotal pricscutum light yellowish-brown with a dark brown stripe 

 on eitlicr side of the paler luedian vitta, these stripes broadest in front, narrower 

 behind, en(hng just before the suture; a shorter, curved, lateral stripe on the lateral 

 eilge of the sclerite, beginning just behind the pseudo-suture, continuing to the 

 transverse suture; scutum, scutellum and post-notum blacki.sh, scantily grey 

 pruinose; pleura; unicolorous greyish-black. Ilalteres, base of stem, pale, yellow; 

 remainder of stem, and the knob, dark brown. 



Legs: coxa; light brown; trochanters and basal three-fourths of the femora, 

 light brownish-yellow; apical fourth of the femora, brown; in the fore-legs, the 

 apical half of the femur is brown; tibia light brown, the tip black; tarsi brown. 



Wings: veins dark brown; membrane rather uniformly tinged with light brown; 

 stigma small, delimited externally by the radial cross-vein; extreme tip of the 

 wing rather darker. \'enation (See fig. 7) : cross-vein r near the tip of Hi, situated 

 far before the fork of Rj+i; Ri much shorter than Ri+.; cell M. absent; basal deflec- 

 tion of Cui slightly before the fork of M. 



.\bdomcn shiny black, including the large hypopygium; in the 9 , the valves of 

 the ovipositor are likewise black. 



Ilolotype, d". Sport Is; Sacandaga R; Fulton Co.; N. Y. June 28, 1911. (Alex- 

 ander, coll.) Allotype, 9 , with the type. Paratypes, 5 cT, 5 9 , with the type. 



Types in author's collection. 



Nearest related to E. fuliginosa O. S. (East. U. S.), from which 

 it is readily distinguished by the lack of a grey bloom on the thorax, 

 the shiny jet black abdomen and genitalia, etc. In normal indi- 

 viduals oi fulioneiisis, cross-vein r is far before the fork of R2+3 (See 

 fig. 7). In rare instances, however, the cross-vein is much nearer 

 to the fork though never quite at it. Specimens which I refer 

 to fuliginosa, provisionally, show a venation similar to that des- 

 cribed for the species (See fig. 8); the coloration is very dark, 

 however, and comparison with the type may pro\-e them to be 

 novelties. E. fidlonensis differs from E. gibbosa Doane' (IMich.) 

 in the same venational peculiarity. 



Eriocera cinerea sp. no v. 

 Cell Ml absent; color of the thorax light grey; stripes on the mesothoracic 

 proescutum indistinct; cross-vein r far beyond the fork of Rj+i. 

 9, Length, 11.4 mm.; wing, 11.2 mm. 



9, Head: rostrum yellow; palpi yellowish-brown; antenna;, segments one 



' Doane, Joum. N. Y. Ent. Soc.; vol. 8; p. 193; pi. 8, 6g. 10. (1900) 



