MAY FLIES AND MIDGES OF NEW YORK 283 



indistinct; the subcostal vein ends proximad of the fork of the 

 cubitus. The color of the legs is pitchy brown, the base of the 

 fore femora and the middle of the hind tibiae are somewhat yel- 

 lowish ; the fore metatarsus is about one half as long as its tibia, 

 the second tarsal joint is one half as long as the first. 



Lundbeck (1898) compared Holmgren's and Staeger's types and 

 declared them identical. Greenland, Washington State. 



19. Orthocladius barbicornis Linne 



1767 T i p u 1 a Linne. Syst. Nat. Ed. XII, 2:974, 25 



1805 Chironomus Fabr. Syst. Antl. p.42, 20 



1818 Ceratopogon Meig. Syst. Beschr. 1 :71, 4 



1864 Chironomus Schiner. Fauna Austr. 2 :612 



1884 Orthocladius Mik. Wien. Ent, Zeitg. 3 :202 



1805 Chironomus obscurus Fabr. Syst. Antl. p.40, 11 



1818 Chironomus Meig. Syst. Beschr. 1:47,60 



1850 Chironomus Zett. Dipt Scand. 9:3568 



Male. Black, or deep fuscous. Head including palpi and 

 antennae black, the hairs of the latter somewhat paler. Thorax 

 with scutelluin and metanotum black. Abdomen slender, black, 

 hairy, incisures scarcely paler; caudal appendages short oval, 

 black. Wings white (pale brownish yellow by reflected light), 

 anterior veins testaceous. Halteres blackish. Legs black or 

 pitchy, occasionally paler, uniformly and distinctly hairy; fore 

 femora and tibiae with long, the tarsi with short hairs. Fore 

 metatarsus one fourth to one third shorter than its tibia; the 

 other joints gradually diminishing in length. Length 4 mm. 

 (Zetterstedt in part.) . 



Female. Thorax anteriorly with yellowish or yellowish brown 

 spots, representing the remains of a pale ground color; the 

 halteres are paler; the wings darker. (Schiner.) 



Some specimens from St. Paul Minn., and from Washington 

 State do not differ from my European specimens. 



20. Orthocladius clepsydras Coquillett 

 1902 Orthocladius Coq. U. S. Nat. Museum Proc. 25 :92 



Female. Black, the extreme bases of femora and of front tibiae, 

 also the other tibiae except their apices, whitish ; mesonotum 

 polished, scutellum and dorsum of abdomen opaque, velvet-like; 

 wings hyaline, each marked with an hourglass-shaped black spot 

 extending from one fourth length of wing almost to apex of upper 

 branch of fifth vein (Cu ), the constricted portion lying above 

 the forking of the fifth vein (cubitus), the basal expanded portion 

 reaching from fourth vein (media) nearly to hind margin of wing, 

 the apical extending from third vein (R 4 -f. 5 ) almost to hind margin 



