1921] Dietz: Impudica Group of Tipula 9 
Antenne slender, moderately long; scapal and first flagellar joints 
yellow, the other flagellar joints uniformly fuscous, subcylindrical, 
pubescence very fine, white. 
Thorax grayish-livid. Pronotal scutel but little paler above. Pra- 
scutal stripes light brown, narrow, straight, not curved outwardly in 
front; the prascutum exterior to the inner lines, grayish pollinose. 
Markings of scutum ill-defined, a small antero-exterior spot, an elongate 
spot along the lateral margin and a larger, elongate spot near the 
median line, light brown; scutel and postnotum brownish-yellow, 
lateral edge of the latter pale-yellowish. Pleura obscure yellowish with 
grayish bloom; pleuro-dorsal membrane sordid yellow. Legs brownish- 
yellow, pilosity coarse, blackish, somewhat appressed; base of femora 
and coxe yellow, femora and tibie infuscate at the apex, the tibize 
longer than the metatarsi; tarsi fuscous outwardly. Wings pale gray, 
subpellucid; cells C and S. ¢. yellowish; veins C., S. c. and R. yel- 
lowish, the other veins brown, delicate, especially beyond the cord; 
vein Cu, and its branches, very broadly seamed with pale fuscous; 
‘stigma pale fuscous; the antestigmal spot very distinct, it extends 
broadly through the outer part of cell R, occupies nearly three-fourths of 
cell Ist-M? and the entire widths of basal two-fifths of cell M?*; cell 
Ist M? pentagonal; stem of cell M! one-third the length of the cell. 
Abdomen yellow with a faint, darker, dorsal stripe; tergites three 
to seven with fuscous, lateral line; pilosity sparse, short: venter darker 
yellow. Eight sternite reddish-yellow, apex truncate with a brush of 
‘stiff, grayish-yellow, decussating bristles. Hypopygium reddish-yellow; 
ninth tergite broadly and very deeply emarginate, the canthi very 
acute, the part of the somite adjacent to the outer half of the emargina- 
tion, appears to be more membranous than usual; lobes with mod- - 
erately deep, rounded emargination; the inflexed portion ends in an 
-acute spine; subtergal process broad, obtusely pointed. Ninth sternite 
broadly and deeply emarginate, lateral margin with a pale-yellowish, 
nafrow, membranous appendage. Pleurites emarginate above, angles of 
the emargination acutely acuminate; inner apical appendages strongly 
bent dorsad in front, evoluted portion conspicuous, large; lower apical 
appendages rather short, twisted, the apical portion bent outwardly, 
apex pointed, fuscous within; surface covered with yellow hairs. 
Holotype—o@. North-Western Colorado, August 11, 1911, 
(E. J. Oslar). 
A distinct species. Its nearest ally appears to be um pudica 
Doane, from which it differs in its more slender antenne, broadly 
‘seamed vein Cu and its branches and the difference in con- 
‘struction of the hypopygium. 
Tipula spernata spec. n. 
Large; general coloration dark yellow. The ninth tergite of the 
male abdomen with a deep, U-shaped emargination, the canthi nearly 
