1911] Doane— T I piila fallar cnid Others 165 



A single somewhat lighter female from Arizona seems to belong 

 here also. The brown on the wings of this species is much less 

 intense than in alia. The shape of the blade-like processes arising 

 from the posterior margin of the ninth sternite and the pendulous 

 appendages are also quite different. 



Tipula rohweri sp. nov. 



Grayish brown: Head grayish pruinose with a median brown line above; rostrum 

 light yellow, with brown lateral stripes; palpi brownish, lighter toward the tips; 

 first two segments of antennae yellow, basal portion of third yellowish; distal 

 portion brownish, other segments brown; mesonotum light brown, each of the 

 three broad brown stripes divided by a grayish brown line; scutellum and metono- 

 tum grayish, lighter laterally; pleura grayish pruinose, an interrupted brown 

 line rimning from the neck to the base of the wings; hal teres brown, whitish at 

 the base; legs yellowish brown; tarsi and tips of femora and tibiae darker; abdo- 

 men light brown with a median, lateral, broad, interrupted, brown band, pos- 

 terior lateral margin of each segment grayish; eighth sternite brown, posterior 

 margin lighter, with two incisions dividing the margin into three prominent lobes 

 each furnished with an abundance of short yellowish hairs; ninth tergite brown, 

 posterior margin with a downward projecting process which ends in two sharp lat- 

 eral claws and a median blunter tooth; ninth sternite brown, lighter posteriorly, 

 no pleural sutiu-es, divided below by a rather broad more membraneous portion 

 from the posterior margin of which arises a pair of long slender blade-like 

 processes which bend first upward then backward at almost right angles; 

 lateral margins of the sternite with deep oval incisions which are filled 

 with whitish membrane; just above these there arises a pair of membranous 

 appendages which terminate posteriorly in two more strongly chitinized 

 projections, the upper ones broader and somewhat spoon-shaped and the 

 lower narrow and claw-like; upper pair of appendages less than twice 

 as long as wide; second pair of appendages ending in two strongly 

 chitinized teeth, the larger one of which bears on one edge a conspicuous 

 coat of fine yellow hairs; lower pair of appendages comparatively small, mem- 

 branous; base broadly joined to the second; wings brownish with whitish hyaline 

 spots in all the cells, making a pattern like that on the wings of T. alia. Length 

 15 mm.; wing 17 mm. Florissant, Colo., 3 males and 1 female (type). Big Horn 

 Co., Wyoming, 2 males, 3 females. 



This species differs from T. grata, which it most closely resembles 

 by being darker the whole body and wings having a grayish rather 

 than a yellowish tinge; antennae much darker brown; the lower 

 claw-like arm of the lateral membranous appendage much shorter 

 and stouter. 



