158 NEW YORK STATE MUSEUM 



the median one posteriorly, tlie lateral ones autei-iorly abbreviated, 

 and the median one is divided by a fine line; the intermediate 

 space and the lateral margins have some erect yellow pile; scutel- 

 liiim and metanotum black; abdomen slender, cinereous black, 

 with long yellow pile, claspers (jnite large, pilose. Antennae 

 blackish broAvn ; legs more or less dilntely brown. Halteres 

 sordidly yellow. Wings hyaline, distinctly but not densely hairy, 

 the costal vein brown, the others pale, the cubitus forks far distad 

 of the M-C'u. crossvein (pl.37, fig. 20). The second and third pairs 

 of legs with long pile, the first pair bristly, the fore metatarsus 

 a little more than half the length of its tibia. Male. Length 2 

 to 8.25 mm. 



The female is shorter than the male, stouter, the antennae 

 shorter than the thorax; in other respects like the male. North 

 G-reenland. 



3. Tanypus crassinervis Zetterstedt 

 1838 Tanypus Zett. Ins. Lappon. 817. 1 

 1845 Tanypus Zett. Staeger. Nat. Tids. p.354 

 1850 Tanypus Zett. Dipt. Scand. 9:3599 

 1898 T a n y p u s Zett. Lundbeck. Vid. INIed. p.294 



Black, opaque, halteres Avhitish, lateral margin of the thorax 

 ferruginous, antennae brown, wings white, somewhat hairy, 

 anterior veins consjticuous, crossvein infuscate, Ro present, the 

 fork of the cubitus jtetiolate; legs blackish or fuscous, fore tarsi 

 bare, metatarsus about one fourth shorter than the tibia, 

 length about 4 mm. 



Male and female. Resembles P. a e r v o s u s (an European 

 species) but is a little smaller, the body opaque, not shining, the 

 wings with pale hairs, and the legs unicolored. 'Head black; 

 antennae dark, the hairs (in the male) brownish; palpi dark, 

 thorax black, lightly cinereous shining, dorsum of the thorax in 

 the niiale with a lateral ferruginous stripe, the humeral spots 

 sometimes more distinct; in the female often reddish yellow, with 

 three wide black stripes, the lateral ones abbreviated anteriorly. 

 Scutellum and metanotum black. Abdomen black, in the male 

 pilose, genitalia small, ovate; abdomen of the female j)ubescent. 

 Wings white, slightly hairy, anterior veins distinctly fuscous, 

 orossveins more deeply infuscated, the posterior veins distinct 

 but paler. Agnation as in P. nervosus (pl.87, fig.24). I^egs 

 formed as in the latter, somelimes brown, sometimes fuscous 

 testaceous. An Euro|»ean species, also recorded from Greenland 

 by Staeger (1845) and Lundbeck (18!)8). 



4. Tanypus culiciformis Linne 

 17G7 Tipula Linn. Syst. Nat. ed. XII. 2:978 

 1805 C h i r o n o m u s Fabr. Syst. Antl. 47, 44 



