212 NEW YORK STATE MUSEUM 



According to V. d. Wulp, loc. cit., and Weyenbergh (1874) the 

 larvae are transparent and pale green; some larvae from, which 

 I bred this species resemble C . d e c o r u s u. sp. in the form of 

 the labimn as well as in other details. Ithaca, N. Y. ; Idaho; 

 Washington State; Pennsylvania; South Dakota; Minnesota; 

 New Jersey; Douglas, Alaska. 



21. Chironomus barbipes Staeger 



1839 Chironomus Staeger. Krojer : Naturh. Tidsskr. 2 :561, 5 



1850 Chironomus Zett Dipt. Scand. 9 : 3486, 5 



1864 Chironomus Schiner. Fauna Austr. 2 : 601 



1877 Chironomus V. d. Wulp. Dipt. Neerl. p.252, 6 



(P1.28, fig.10) 



Male. Hairy, blackish species with hyaline wings having the 

 anterior veins somewhat reddish; halteres sordidly yellow, the 

 extreme tips a. little darker; the second joint of the fore tarsus 

 shorter than the third. Length 8 mm. 



Head and basal joint of antenna dull black, the flagellum of the 

 latter and the palpi fuscous. Antennal hairs dark reddish brown. 

 Thorax cinereous, with three faintly marked wide cinereous black 

 stripes; scutellum, pectus, pleura and metanotum cinereous. 

 Abdomen black, the posterior margins of the segments cinereous, 

 covered with long brown erect hairs. Geuitalia brown, the 

 claspers rather short and stout, the dorsal keel of moderate size. 

 The coxae cinereous; the legs testaceous, the bases of the femora, 

 the knees, the tips of the tibiae, and the middle and hind tarsi 

 a little darker, the fore tarsi except basal half of metatarsus 

 brown and densely bearded with long brown hairs. The fore 

 femora and tibiae and basal half of metatarsi nearly bare; the 

 whole of the middle and hind legs quite hairy. Fore metatarsus 

 about one sixth longer than its tibia; the second tarsal joint 

 shorter than the third. The wings narrow and long, hyaline with 

 very slight yellow tinge; the costa, radius, R-M crossvein and the 

 basal half of the media testaceous, the other veins hyaline; vena- 

 tion as figured. Halteres yellowish. 



Female. Basal half of antennae yellowish, fore tarsi bare. 

 Readily distinguished from related species by its short second 

 tarsal joint. 



Van der Wulp (1877, p.252), suggests that this may possibly be 

 a synonym of C. p a 1 1 e n s Meigen. 



Two male specimens, Chicago, 111., May, 1899. 



22. Chironomus annularis Degeer 



1776 T i p n 1 :i Degeer. Mem. pour serv. a 1'hist. d. Ins. 6 : 379, 18 

 1809 Chironomus Latr. Gen. Crust, et Ins. 4 : 250 

 1818 Chironomus Meigen. Syst. Beschr. 1 : 21, 3 



