218 NEW YORK STATE MUSEUM 



dark brown, mesonotnm opaque, a broad, yellowish median vitta 

 on the anterior half, and a widely separated pair of gray pruinose 

 vittae on the posterior half; abdomen opaque, velvet-black, its 

 hairs yellow; legs yellowish white, front and middle femora, 

 except their apices, also bases of hind femora brownish, middle 

 tibiae tinged Avith brown, front tarsi only pubescent, front tibiae 

 three fourths as long as their first tarsal joint, hind tibiae and 

 their tarsi in the male densely clothed with rather long hairs; 

 wings hyaline, slightly tinged with yellow, small crossvein not 

 darker than the adjacent veins, third vein (R^-fs) almost straight; 

 halteres whitish ; length 2.5 to 4 mm. Washington, D. C. Coquil- 

 lett, loc. cit. 



30. Chironomus pedellus Degeer 



1776 Tipula Deg. Mem. pour serv. a I'hist. d. Ins. 6:378, 17 



1818 Chironomus Meigen. Syst. Beschr. 1 : 28, 16 



1850 Chironomus Zett. Dipt. Scand. 9 : 3535, 57 



1864 Chironomus Schiner. Fauna Austr. 2 : 606 



1877 Chironomus V. d. Wulp. Dipt. Neerl. p.2o9, 19 



1794 Tipula c a n t a n s Fabr. Ent. Syst. 4 : 247, 67 



1804 Chironomus Meigen. Klass. 1 :13, 7 



1805 Chironomus Fabr. Syst. Antl. p.45, 34 



1803 Tipula littoralis Schrnlv. Fauna Boica. 3 : 74, 2325 

 1880 Chironomus var. atricornis Strobl. Progr. Gymn. Selten- 

 stetten. p. 53 



Male. Dorsum of the thorax shining black; the humeri with 

 ferruginous or yellowish-green spots, which seem to be the remains 

 of the original ground color; the scutellum and the metanotum 

 also black. The abdomen a beautiful, bright green which becomes 

 paler or more yellowish in dried specimens. The jiosterior seg- 

 ments flattened, black, or blackish-brown; the forceps quite small 

 and slender. Head and palpi brownish ; the antennae brown, its 

 hairs lighter, the basal joint yellow. Legs pale j'ellowish, in life 

 somewhat greenish ; the coxae, the fore knees broadly, the middle 

 and hind knees narrowly brown banded, tlie tips of the tibiae and 

 the tips of the tarsal joints brownish; the femora and the tibiae 

 of the fore logs of equal length ; the fore metatarsus about one 

 fourth longer than its tibiae, and not bearded. Wings whitish, 

 with pale veins; venation as shown on pl.28, fig.16; the halteres 

 pale. 



Female. The female has yellow antennae with only black tips; 

 and the humeral spots are more spread out, appearing to crowd 

 the black dorsal i)atch into longitudinal stripes. Length 5.5 to 

 6 mm. Wisconsin (V. d. Wulp) ; New Jersey (Johnson). Several 

 male specimens from Ithaca, N. Y. 



