1915.] NATURAL SCIENCES OF PHILADELPHIA. 493 



nearly so, the costal region light yellow, the stigma a little darker 

 bro■w^l; a broad vitreous band before the stigma, along the cord 

 and into cell 1st M^; a vitreous blotch beyond the stigma occupying 

 most of cell 2nd Ri. Venation as in Plate XVI, fig. 14. 



Abdomen dull yellow without distinct stripes, the caudal margin 

 of the tergites three to eight broadly margined with, silvery; hypo- 

 pygium reddish. Male genitalia with the eighth tergite rather broad, 

 the margin being straight; ninth tergite (see Plate XIX, fig. 52) 

 large, the caudal margin ^vith a deep U-shaped notch which bears 

 a small rounded median lobe beneath; the dorsal surface bears a 

 broad median groove or depression to the base; the lateral lobes 

 are broad, directed caudad, the tip a cylindrical chitinized point 

 which is directed ventrad and slightly imvard. Ninth pleurite 

 (see Plate XVIII, fig. 35) large, prominent, oval, convex, not in 

 contact with the ninth tergite; appendages two: outer appendage 

 a long, cylindrical, fleshy lobe, subsigmoid, pale, covered with long 

 divergent hairs; inner appendage complex (see Plate XX, fig. 69), 

 composed of a caudal lobe which is directed backward, pointed, 

 and a cephalic lobe which is compressed, black and heavily chitinized 

 along the margin; on the outer face of this blade is a conspicuous 

 membrane which is provided with numerous hair-like ribs. Ninth 

 sternite extensive, convex, very deeply notched beneath and with 

 a pair of very short fleshy lobes which bear dense tufts of long yellow 

 hairs, each decussate with the tuft of the opposite side. Eighth 

 sternite (see Plate XVII, fig. 26) large, prominent, projecting caudad, 

 the posterior margin with a rounded notch which bears a dense tuft 

 of long silvery white hairs on each side of the middle line. 



Habitat. — ^Eastern United States. 



Holotype, cf, Woodworths Lake, Fulton Co., N. Y., altitude 

 1,600 feet, June 18, 1914 (Alexander). 



Paratypes, No. 1, cf. North Mt., Luzerne Co., Pa., June 8 (John- 

 son); No. 2, cf , topotypic; No. 3, 3 cf's, Sacandaga Park, Fulton 

 Co., N. Y., June 11, 1914 (Alexander); No. 6, 2 cf^'s, Indian Castle, 

 Herkimer Co., N. Y., June 13, 1915 (Alexander). 



The type and paratypes 2 to 7 in the collection of the author; 

 paratype No. 1 in the collection of Mr. Johnson. 

 Tipula tuscarora sp. n. 



Coloration yellowish; antennae bicolorous; wings yellowish; 

 thoracic stripes verj^ indistinct; male genitalia with the ninth 

 tergite very large, deeply notched, the lateral lobes produced into 

 long, slightly curved horns; the outer pleural lobe is produced into 



