INSECUTOR INSClTl^Ti M^NSTRUUS 141 
arculus ; brown spots at the stigma and end of vein Sc ; base 
of Rs and the apex of vein Cu and vein Cwj seamed with 
brown; costal area not brighter; a broad vitreous band before 
the cord extending from before the stigma inchiding the base 
of cells 1st Mo and M^ ; a small vitreous spot at the apex of 
cell 1st A near the vein 2nd A. 
Abdomen brown, indistinctly trivittate, the lateral stripes 
being the more distinct ; caudal margins of the segments paler, 
this color becoming broader and clearer on the terminal seg- 
ments ; it is probable that fresh specimens exhibit a sparse 
gray bloom on the segments ; sternites brown, segments 4 and 
5 broadly ringed with paler on the caudal margin, segments 
6 and 7 much more narrowly ringed. Hypopygium powerful, 
compressed ; ninth tergite very small and long ; a deep dorsal 
median groove ; lateral angles produced caudad into long, sub- 
acute lobes which lie parallel, narrowly separated by a very 
deep U-shaped notch ; eighth sternite with the lateral lobes 
bent strongly dorsad, at the apex with a strong, matted bunch 
of reddish bristles which are directed proximad and are decus- 
sate; a median lobe directed caudad and bearing at the apex 
a dense, rather short, fringe of golden hair. 
Holotype, male, Ormsby County, Nevada, July 6 (C. F. 
Baker), No. 960. 
Type, Cat. No. 19988, U. S. Nat. Mus. 
Tipula alticola, new species. 
Male. — Length, 15.5 mm. ; wing, 16.8 mm. 
Palpi short, black. Frontal prolongation of the head black 
with a dark blue-gray bloom; nasus distinct, hairy. Antennae 
black, the second segment a little paler; flagellar segments ex- 
ceedingly deeply incised, the distal enlargement of each seg- 
ment only a little smaller than the basal swelling. Head dark 
blue-gray, more brownish on the sides of the occiput and ver- 
tex behind the eyes ; a narrow median brown line. 
Thoracic dorsum light gray with three very broad, dark 
blue-gray stripes, the median broadest, narrowly bisected by a 
delicate brown line; prsescutal interspaces with abundant 
