204 NEW YORK STATE MUSEUM 



the last four segments have upon them irregular blotches of 

 brown or black. The posterior end of the lateral thoracic stripes 

 ]-ange from a pale velloAv in some specimens to a dark brown in 

 others; depending, perhaps, upon their maturity. The amount 

 of black upon the legs is also variable; in an extreme case all 

 the tibiae and the femora except the immediate bases of the latter 

 are black. The fore metatarsus is about one fourth longer than 

 its tibia. Described from numerous s]>ecimens (pl.28, fig.4). I 

 have a purchased specimen, collector unknown, bearing the label, 

 C. fascipennis Zett., Riverton, N. J., which is not the latter 

 species but is C. taenia pennis. 



9. Chironomus pulchripennis Coquillett 

 1902 Chironomus Coq. Proc. U. S. Nat Mus. 25:94 



This seems to be a synonym ofC. taeniapennis Coq. 



Female. Head and antennae yellow, apical half of last joint 

 of the latter and the mouth parts brown ; thorax opaque, greenish 

 yellow, mesonotum marked with a pair of lateral brown vittae 

 behind its middle, metanotum with a ])air of brown spots which 

 approach each other posteriorly; scutellum and abdomen green, 

 the latter with the hind margins of the segments yellowish, bases 

 of segments six to eight and nearly the whole of the following 

 two brown; legs whitish, the knees black, this color extending 

 nearly to the middle of the middle and hind femora, front tibiae 

 5- as long as the first joint of their tarsi ; wings whitish, the 

 costal cell except its a{;ex brown, a broad brown band crosses the 

 wing, i)assiug over the bases of the first and third posterior cells 

 (cells R^+.- and CuJ and prolonged along the hind margin nearly 

 to the anal angle, apex of Avings broadly brown from the third 

 vein (Ri-i-s) to the upper branch of the fifth (cubitus) ; halteres 

 white; length 4 mm. Franconia, N. II. Coquillett, loc. cit. 



10. Chironomus brunnipes Zetterstedt 



1850 Chironomus Zett. Dipt. Scand. 9:3518, 35 

 1808 Chironomus Lundbeck. Videnslv. Meddel. 273 



lilack, subsliining, thorax of the male the same color, thorax 

 of the female yellow Avith three black stri}>es; the antennae and 

 the leg's brown; the wings white; the anterior tarsi of the male 

 bare; the metatarsus is a little longer than the tibia; caudal 

 appendages small, short vSubfiliforni. Length 2.7 mm. 



Male. IJrownish black. Antennae with brown ]ilumosity. 

 AIkIoiiu'Ii \vv\ narrow, linear, hairy. Caudal appendages short 

 subtiliform, dusky, ^^'ings white, crossvein not clouded; halteres 

 white. Legs brown, tarsi paler, the fore metatarsus is about 1.5 



