MAY PLIES AND MIDGES OF NEW YORK 135 



white; the abdomen of the female is wholly black. All the 

 femora excepting their white bases are black, or pitchy black 

 in both sexes; the tibiae and fore tarsi of the female are the 

 same color; those of the male are white, but the tips of the 

 tibiae and the tarsi from the end of the first joint are black. 

 The middle and hind tibiae are white, the base and tip widely 

 black; the middle and hind tarsi black, the first joint except its 

 tip white; all the fourth tarsal joints of both sexes short, 

 obcordate. Halteres Avhitish. Wings bare, subhyaline, with a 

 small black spot, which covers the crossvein and anastomoses 

 with a small spot (also black) on the cubitus. The female differs 

 in having black middle tibiae each with a white ring. Wash- 

 ington, D. C. 



A male and a female specimen^ the first from New Jersey, the 

 second from' Washington, D. C, in my possession agree perfectly 

 with the above description. It may be added that the basal two- 

 thirdis of the antennae and its hairs are pale fuscous, the apical 

 one-third darker. 



Genus 16. Anatopynia, new genus 

 T a n y p n s INfeigen. Illiger's Mag. 1803 (pt.) 



Belongs to the group Ta nypus. Antennae fifteen-jointed 

 in both sexes; wings bare; Rg usually preisent near the tip of Rg; 

 fork of the cubitus slightly proximad of the M-Cu. crossvein. 

 Type of the genus T . p 1 u m i p e s Fries (1823) . 



To this genus probably belong also the following European 

 species : f o r c i p a t u s Egger (1863) ; n u d i p e s Zett. (1850) ; 

 consobrinus Zett.; lactipennis Zett.; morio Zett.; 

 pubitarsis Zett. The species tricolor Lw. (N. Y.) , 

 humeral is Lw. (Cuba) and turpi s Zett. (Greenland) may 

 possibly belong in this genus. See descriptions on p. 127, 130. Of 

 this group Meinert (188G) has figured the respiratory organ of 

 the pupa of p 1 u m i p e s . 



Genus 17. Ablabesmyia, new genus 



T a n y p u s Meigeii. 1803 (pt. ) ; T a n y p u s Skuse. 1889 



Antennae 15-jointed (counting basal joint); wings hairy, the 

 cubitus forks at or before the M-Cu. crossvein. 



For this subdivision Skuse (1889) had proposed to retain the 

 name T a n y p u s Meigen, but this cannot be maintained for 

 the reasons given on p. 125. 



