MAY FLIES AND MIDGES OP NEW YORK 287 



very short-haired, fore metatarsus about one sixth longer than 

 its tibia. "Wings cream white, with white veins; venation as fig- 

 ured. Halteres white. 



Female. Like the male but with yellow antennae, and the 

 abdomen is nearly uniform in color, paler margins at most but 

 feebly indicated. Length, both sex< s. 3.5 to 4.r> mm. 



In one male specimen the abdomen is wholly black, and the 

 basal joint of the antenna brown. This fly greatly resembles the 

 female of C h i r o n o m u s n i g r i c a n s n. sp., from which it 

 may readily be distinguished by its hairy wings. Numerous speci- 

 mens; Ithaca X. Y., May. .June, July. Washington State. 



2. Tany tarsus nigripilus u. sp. 



Resembles T . s y 1 v a t i c u s V. d. W.. an European species, 

 but differs in having black halteres. 



Male. Black, subshining; length 3.5 to 4 mm. Head black; 

 palpi, proboscis and antenna*' also black, the last with blackish 

 hairs. Thorax wholly subshining black, the dorsum when viewed 

 obliquely from in front with two more distinctly shining black 

 stripes. Abdomen black, siibshiniug, incisures faintly cinereous, 

 hairs black. Claspers slender, brownish. Coxae and legs black, 

 long-haired, particularly the fore tarsi, which are almost bearded ; 

 fore metatarsus about one sixth longer than its tibia. Wings 

 hyaline, slighth brownish tinted, anterior veins brownish, pos- 

 terior ones pale; cubitus forks about under the crossveiu. Hal- 

 leres fuscous or black. 



Female. Like the male, but the fore tarsi are less hairy and 

 the halteres are paler. Ithaca X. Y.. April. Washington State. 



3. Tanytarsus g-mundensis Egger 



1SG3 C h i r o n o m u s Egg. Verb. z. b. Ges. Wien. 13 : 1100 

 18G4 C b i r o n o in u s Schinor. Fauna Austr. 2 : 597, 7 

 1874 T a u y t a r s u s V. d. Wulp. Tijcl. v. Ent. 17 : 134 

 1S77 Tanytarsus V. d. Wulp. Dipt. Neerl. p.285 



<I'1.:;<>. tig.l.T) 



Male. Fuscous. Head, including palpi, proboscis and anten- 

 nae fuscous, the last with fuscous hairs. Thorax and abdomen 

 wholly fuscous, the last with yellowish hairs; genitalia brown. 

 Legs fuscous, trochanters and bases of femora yellow; short- 

 haired. Fore metatarsus about 1.5 times as long as its tibia. 

 Wings hyaline, veins near the anterior margin yellowish, and 

 others paler. Halteres yellow. 



Female. Like the male but with broader wings. Length 3 to 

 4 mm. f cannot distinguish the American from my European 

 specimens. Ithaca N, Y., Chicago 111., Washington State. April 

 and October. 



