XXxii. '21] ENTOMOLOGICAL NEWS 301 



interrupted at the incisures, a lateral stripe also interrupted at the 

 incisures and becoming obsolete on tergites seven and eight ; lateral 

 margins of tergites whitish. Venter obscure yellow, brownish pos- 

 teriorly. Hypopygium not large, light brown. The eighth sternite 

 slightly emarginate, with a rather long, median appendage, bifid at 

 the apex and a rather long, digitiform appendage at each lat- 

 eral angle, bearing a hair pencil at its apex. Xinth tergite 

 broad, with a deep, broad V-shaped emargination, each lateral lobe 

 with a sharp point at its apex ; ninth sternite with deep V-shaped 

 emargination, containing two pale, hairy appendages. Pleural suture 

 complete ; the pleurite somewhat prolonged distad, subacuminate. The 

 upper external appendage long, slender, directed dorsad and bearing 

 a pencil of hair at its apex ; the inner appendage consists of a per- 

 pendicular plate, the anterior end of which abuts beneath the emargi- 

 nation of the ninth tergite, posteriorly this plate expands into a hori- 

 zontal lamina, broadly emarginate along the posterior margin, the distal 

 end of the perpendicular plate turns outwardly. 



$ Length, 20.5 mm.; wing, 17.5 mm. Antennae short, scapal 

 joints brownish yellow. The dorsal, abdominal stripe more widely 

 interrupted beyond the second incisure, the lateral stripes broader and 

 more conspicuous, the lateral tergal margin more yellowish. Ovi- 

 positor brown, valves rather long, gradually narrowed posteriorly, 

 obtusely pointed, the ventral pair fully three-fourths the length of the 

 dorsal valves. 



Holotype$, Bullion Peak, Park County, Colorado, 11,000 

 feet, May 20, 1914. (E. J. Oslar. ) Allot ype, 9, topotypic, 

 11,500 feet, August 20, 1914. Paratypcs, topotypic, 9 males, 3 

 females. Types in author's collection. 



Agrees with T. senega in the construction of the eighth ster- 

 nite of the male, but differs from this species in the gray thorax 

 and the longer and deeply emarginate ninth tergite of the male. 

 In its hypopygeal construction this species shows considerable 

 similarity to impudica and its allies, the ninth sternite, how- 

 ever, is much less prolonged. 



Tipula beaulieui spec. n. 



Thoracic stripes margined. Eighth sternite of male abdomen sim- 

 ple, acutely produced in the middle. Flagellar joints distinctly 

 bicolored, brown, basal enlargement yellow. 



$ Length, 15 mm.; wing, 14 mm Head gray; rostrum rather 

 short, sordid yellow ; frontal prolongation gray, nasus short, obtuse. 

 Palpi light brown, fourth joint fuscous, shorter than the three preced- 

 ing joints together. Antennae not elonuute ; M apal joints dull yellow; 

 first flagellar joint yellow, infuscate apically, following joints fuscous, 



