242 THE CANADIAN ENTOMOLOGIST 



NEW NEARCTIC CRANE-FLIES (TIPULID^, 

 DIPTERA) PART V. 



BY CHARLES P. ALEXANDER, UNIVERSITY OF KANSAS, 

 LAWRENCE, KAS. 



(Continued from page 165.) 

 Genus Tricyphona Zetterstedt. 

 Tricyphona protea, new species. 



General coloration pale yellowish brown; wings with the free 

 portion of vein R2 very long, only a little shorter than the sector; 

 cell Ra short-petiolate ; cell 1st Mi open by the atrophy of m. 



Male. — Length 6.4 mm.; wing, 6.5 mm. 



Described from an alcoholic specimen. 



Rostrum and palpi pale; palpal segments nearly subequal, 

 the fourth a little longer than the third and more slender. 

 Antennae dark brown, the basal segments paler; flagellar segments 

 oval, the terminal segment not elongated. Head yellowish, 

 darkest on the vertex. 



Thorax light yellowish brown without apparent darker stripes. 

 Halteres short, pale, the knobs large. Legs with the coxae and 

 trochanters dull yellow; remainder of the legs broken. Wings 

 a pale yellowish tinge; veins yellowish brown. Venation: Sci 

 ending just before the fork of i?2+3; Sa some distance before 

 the origin of the sector, this distance about equal to the basal 

 deflection of Cta; vein Ri fused with R\ for a short distance back 

 from the wing-margin, this fused portion about equal to r-m\ 

 petiola of cell i?4 short, less than r-m; cell 1st M2 open by the 

 atrophy of w. 



Abdominal tergites dark brown, paler laterally; sternites dull 

 yellow; apices of the segments darker brown; hypopygium dull 

 yellow. 



Habitat. — Washington. 



Holotype. — cf , Mt. Rainier, Washington. 



In many respects this is a very remarkable fly, easily told 

 from all its relatives by the great length of vein R2 before its 

 fusion with Ri. I have pointed out in another paper the reasons 

 for changing the nomenclature of the radial veins in the Pediciini, 

 this vein R2 having been hitherto considered as being the radial 

 cross-vein. 



July, 1918 



