304 



NEW YORK STATE MUSEUM 



7. Metriocnemus incomptus Zetterstedt 

 1838 C h i r n m u s Zett. Ins. Lappon. p:816, 42 

 1850 Chironomus Zett. Dipt. Scand. 9 : 3586, 121 

 1864 Chironomus Schiner. Fauna Austr. 2 : 607 



1898 Chironomus Lundb. Vidensk. Meddel. p.285, 73 



Gray; dorsum of the thorax with three black longitudinal 

 stripes, which are often indistinct; the metanotum blackish; the 

 abdomen with pale incisures, at the base sometimes lighter. Head 

 dark; the palpi pale yellow, the antennaie testaceous. Legs pale 

 yellow, the coxae and all the articulations brown or at least 

 darker; fore metatarsus but little shorter than its tibia. Wings 

 whitish, spotless, thickly haired ; the halteres pale. Length 3 mm. 

 Schiner, loc. cit. (Greenland, Lundbeck.) 



The fly described by Van der Wulp as M. i n c o m p t u s is a 

 synonym of M . m o d e s t u s Meigen according to Kertesz 

 (1902). 



8. Metriocnemus atratuius Zetterstedt 



1850 Chironomus Zett Dipt Scand. 9 : 3590, 128 



1864 Chironomus Schiner. Fauna Austr. 2 : 608, 56 

 1884 Metriocnemus Mik. Wien. Ent Zeitg. 3:202 

 1898 Chironomus Lundb. Vidensk. Meddel. p.285, 74 



(PJ.31, fig.5, pl.33, fig.8.) 



Kesembles O r t h o c 1 a d i u s s t e r c o r a r i .u s Deg., but 

 differs in having hairy wings. Dull black ; abdomen black-haired ; 

 the anal segment wider. Antennae and its hairs black. The legs 

 black, the tarsi brown ; the fore metatarsus but little more than 

 one half as long as its tibia. Halteres black ; wings white, with a 

 darker stripe at its base ; delicately haired. Length 1.5 to 2 mm. 

 Schiner, loc. cit. (Greenland, Lundbeck.) 



Several specimens from Ithaca, N. Y., agreeing with the above 



description have the thoracic hairs, especially of the* male, pale 



brown. 



9. Metriocnemus ursinus Holmgren 



1869 Chironomus Holmgr. K. Svensk. Vet Akad. Handl. 8:5, 39 

 1898 Chironomus Lundb. Vidensk. Meddel. p.284, 71 

 1902 Metriocnemus Kertesz. Cat'l. Dipt 1 : 232 



1865 Chironomus arcticus Bohem. Of v. K. Vet. Akad. Forh 



p.574, 19 

 1845 Chironomus aterrimus Staeger (nee Meig. ) . Krojer. 



Naturh. Tids. 1:353,8 

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



Male. Head black; antennae fuscous black, densely plumose, 

 basal joints of the flagellum stouter. Thorax black, subopaque. 



