160 NEW YORK STATE MUSEUM 



V. ' . 



one fourth shorter than the tibic.; fore tarsi of the male bearded. 

 Halteres whitish. Wings slightly hairy, hyaline, slightly smoky 

 near the tip; the crossvein brown clouded; the cubitus forking 

 distad of the crossvein ; venation resembling that of P . n e r v o - 

 s u s (pl.37, fig.24). 



The female is usually somewhat lighter colored. Length 3.5 to 

 4.5mm. Translation from V.d. Wulp (1877). " Coloring some- 

 what variable." Schiner (1864). No<rth America (Osten Sacken, 

 1878). 



6. Tanypus tibialis Say. 



1823 Tanypus Say. Journ. Ac. Nat Sc. Philad. 3 : 15, 2 

 1828 Tanypus Wied. Ausser. Europ. Zw. Ins. 1:20, 4 

 1878 Tanypus Ost. Sack. Catl. Dipt. N. A. p.22 



Thorax reddish brown; tibia white at base; abdomen white, a 

 double band on the middle and tip black. Habitat : Pennsylvania. 



Wings immaculate; poisers white; feet fuscous, basal half of 

 the tibia white; tergum, second joint with a spot each side, two 

 middle segments with each a band, of which the anterior one is 

 much broader, and terminal segments deep fuscous, pleura yellow- 

 ish. Length of male more than 1/20 in. 



7. Tanypus baltimoreus Macquart 

 1855 T e r n i p u s Macq. Dipt. Exot. Suppl. V. 15, 1 

 1878 Tanypus Ost. Sack. Catl. Dipt. N. A. p.21 



Female. Palpi tawny, shining cinereous. Antennae wanting. 

 Thorax with wide black bands ; abdomen black, posterior margins 

 of the segments white. Legs tawny ; tarsi dusky. Halteres brown. 

 Wings greyish, with an oblique black line; veins normal. Length 

 3.5 mm. From Baltimore. Translation. 



Judging from the description this species seems to resemble 

 T. c u 1 i c i f o r m i s , but it has brown halteres. Nothing is 

 said either about the wing venation with respect to fork of the 

 cubitus, whether sessile or petiolate ; or whether the wing is hairy 

 or bare; it is therefore impossible to say to which one of the 

 four genera of the group T a n y- p u s it belongs. 



Genus 20. Pentaneura Philippi 



Verb. z. b. Ges. 35. 629. 1865 



The antennae equal in length to the head and thorax taken 

 together, moniliform, 12-14 jointed, verticillate w r ith long hairs, 

 the joints subglobose, not petiolate, the last joint elongate. Palpi 

 elongate, equaling the antennae, joints suibcylindrical. Wings 



