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 

 range from a pale yellow 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 specimens (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 Ck)q. Proc. U. S. Nat Mus. 25:94 



This seems to be a synonym ofC. taeniapeunis Coq. 



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

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

 yellow, mesonotum marked with a pair of lateral brown vittae 

 l>ehind its middle, metanotum with a pair of brown spots which 

 a]>proach each other posteriori}' ; 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 

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

 costal cell except its apex brown, a broad brown band crosses the 

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

 (cells R.j^- and Cu^) and prolonged along the hind margin nearly 

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

 vein (R1+3) to the upper branch of the fifth (cubitus) ; halteres 

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



10. Chironomus brunnipes Zetterstedt 

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

 1898 Chironomus Lundbeck. Vidensk. Meddel. 273 



Black, subshining, thorax of the male tlie same color, thorax 

 of the female yellow with three black stripes; the antennae and 

 the legs brown; the wings white; the anterior tarsi of the male 

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

 a.ppendages small, short subfiliform. Length 2.7 mm. 



Male. Brownish black. Antennae with broAvn plumosity. 

 Abdomen very narrow, linear, hairs'. Caudal a.ppendages short 

 subfiliform, dusky. Wings white, crossvein not clouded; halteres 

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



