MAY FLIES AND MIDGES OF NEW YORK 149 



13, Ablabesmyia algens Coquillett 

 19(>2 T a n y p u s Coq. Proc. U. S. Nat. Mus. 25 :90 



Female. Yellow, three vittae on the mesonotmn ; the metano- 

 tumi, spots on the pleura, and the sternum, brownish black ; mouth 

 parts, apices of femora, and bases of tibiae brownish ; mesonotmn 

 grayish pruinose, the vittae somewhat polished; wings covered 

 with hairs, liyaline, crossed at the middle by a faint brownish 

 band which extends from small crossvein half way to the wing 

 tip; Rj near its apex connected with Rg by the oblique Ho', cubitus 

 foi'ks slightly before the crossvein; length 3 mm. Popoff Island, 

 Alaska. 



14. Ablabesmyia discolor Coquillett 

 1902 T a n y p u s Coq. Proc. U. S. Nat. Mus. 25 :89 



Female. Yellowish brown; antennae, scutellum, large portion 

 of abdomen, legs except apices of femora and tibiae, also the 

 halteres, yellow; mesonotum grayish pruinose, most dense at the 

 humeri and in front of scutellum; wings whitish hyaline; two 

 crossbands and the apex largely brown; the first band is on a 

 line with the humeral crossvein, and along costa is broadly con- 

 nected with the second band, which is located at the small cross- 

 vein; behind the cubitus the second band is prolonged to meet 

 the brown at apex of wing; the latter begins a short distance 

 before the apices of R^ and of Cu^,, and encloses a large hyaline 

 spot in apex of cell M and cell Cu^, also two yellowish costal 

 spots ; the brown along the costa comprises two spots of a darker 

 color than the remainder of the brown at the apex of the wing, 

 and between the first of these spots and the preceding brown 

 band is a large jellow costal spot; wings densely covered with 

 hairs, which are yellowish on the hyaline portions and brown 

 on the dark spots; R^ connected with R, a short distance before 

 its tip by the oblique R.. Cubitus forks slightly before the cross- 

 vein. Length .3 mm. 'New Hampshire, 



15. Ablabesmyia melanops Wied. (Moig.) 



1818 T a n y p u s Meigen. Syst. Bescbr. 1 : 65, 18 



1850 T a n y p u s Zett. Dipt. Scand. 9 : 3621 



1864 T a n y p u s Schiner. Fauna Austr. 2 : 621 



1877 T a n y p u s V. d. Wulp. Dipt Neeii. p.306 



1757 T i p n 1 a ? a r u n d i n e t i L. Fauna Suec. ed. II. p.4.34 



1818 T a n y p u s Meig. Syst. Bescli. 1 :06, 19 



1823 T a n y p u s b i c o 1 o r Frie.s. Monogr. Tanyp. Suec. 17, 12 



Pale reddish yelloAv, including the antennae, palpi, legs and 

 halteres; eyes black. Thorax with three reddish longitudinal 

 stripes, the median one divided; the intermediate spaces and the 



