INSECUTOR INSCITI^E MENSTRUUS 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 including the base 

 of cells 1st M2 and M^ ; a small vitreous spot at the apex of 

 cell ist 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. vS. Nat. Mus. 



Tipula alticola, nev/ 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; prasscutal interspaces with abundant 



