MAY PLIES AND MIDGES OF NEW YORK 247 



loAvish brown; feelers brown; legs yellowish brown; thighs 



yellow at the base; wings colorless; veins and jioisers yellow. 



Lengtli of the body 1,75 lines (3J mm.) ; of the wings 3.5 lines 



(=7 mm.). St Martin's falls, Albany river, Hudson's bay. 

 Walker, loc, cit. ; New Jersey (Johnson). 



72. Chironomus lasiopus Walker 

 1848 Chironomus Walker. List Dipt Brit. Mus. 1 : 19 

 1878 C li i r o 11 o m u s Ost Sack. Cat'l. Dipt N. A. p.21 



Female. Wings hairy. Head and chest yellow; the usual three 

 stripes on the latter brown, confluent, and occupying the whole 

 of the back ; feelers brown ; scutcheon dingy yellow ; hind chest 

 black ; abdomen brown, with a broad, dingy yellow band on the 

 hind border of each segment; legs clothed Avitli short yellow 

 hairs; thighs yellow; shanks darker; feet brown; wings colorless, 

 with the usual spot on the disk; veins brown, poisers pale 3'ellow. 

 Length of tody, 2.5 lines (=5 mm.) ; of the wings, 4 lines (=8 

 mm.). St Martin's falls, Albany river, Hudson's bay. Walker, 

 loc. cit, 



73. Chironomus hilaris Walker 

 1848 h i r o n o m 11 s Walker. List Dipt Brit Mus. 1 : 17 



Male. Wings bare. Body straw-color; head and chest tawny, 

 the latter produced in front, and having its usual three 

 strijies of a yellow color; feelers tawny; eyes black; legs brown; 

 thighs white towards the base; middle shanks pale yellow, ex- 

 cepting the base and the tips; wings white, each having a broad, 

 irregular, brown band across its disk ; veins yellow ; poisers pale 

 yellow. Length of the body 1.5 lines (=3 mm.) ; of the wings 3 

 lines (=6 mm.). Habitat unknown. Walker, loc. cit. 



74. Chironomus anticus Walker 

 1848 Chironomus Walker. List Dipt Brit Mus. 1 :21 

 1878 Chironomus Ost. Sack. Cat'l. Dipt N. A. p.20 



Wings hairy. Chest a little produced in front, silky white, 

 with the usual three stripes of bright tawny color; abdomen pale 

 yellow, hairy; last two segments dull tawny; legs i)ale yellow, 

 hairy; a tawny band round each hind thigh; tips of the thighs, 

 of the shanks, and of the joints of the feet, tawny ; wings whitish 

 from the base to the middle, pale tawny thence to the tii)S, 

 slightly fringed; poisers pale yellow. Lengtli of body 2.5 lines 

 (=5 mm.) ; of wings 4 lines (=8 mm.) , Georgia. Walker, loc. cit. 



75. Chironomus bimacula Walker 

 1848 Chironomus Walker. List Dipt Brit Mus. 1 : 15 

 1878 Chironomus Ost Sack. Cat'l. Dipt. N. A. p.20 



Female. Wings bare; body citron color; chest produced in 

 front, with the usual three stripes of orange color; a black dot 



