1915.] NATURAL SCIENCES OF PHILADELPHIA. 495 
Habitat. — Eastern United States. 
Holotype, c^, Glencarlyn, Fairfax Co., Va., Juno 21 (Knab). 
Paratype, cf , District of Columbia (Osten Sacken). 
The type is in the collection of the United States National Museum, 
the paratype in the Museum of Comparative Zoology. The latter 
specimen is part of the Loew collection and bears the manuscript 
name "hamata'' in Loew's writing; to the specimen Osten Sacken 
has added the following label: '' Notice the small forceps below the 
large one. " 
The specific name adopted is that of the IncUan tribe of the same 
title. 
Tipula Seminole sp. n. 
Coloration yellowish, antennse rather indistinctly bicolorous; 
thorax brownish yellow without distinct stripes in alcohol; wings 
pale yellow or brownish yellow, the costal area and the stigma 
darker. Male genitalia with the ninth tergite square, with a deep 
rectangular notch, the lateral lobes rounded. 
Male. — Length, 12.5 mm.; wing, 12.6 mm.; antennae about 
4.6 mm. 
Female. — Length, 23.5 mm.; wing, 15.8 mm. 
Frontal prolongation of the head rather long, moderately slender, 
dull yellow, the palpi brownish yellow. Antennse rather short, 
the first three segments yellow or yellowish, remainder of the antennae 
with the basal enlargement dark brown, the remainder of each seg- 
ment brownish yellow, this color darker on the terminal segments 
so that the color at this point is more unicolorous. 
Thoracic dorsum brownish yellow without distinct stripes (in 
alcohol). Pleura dull yellow, indistinctly marked with brown. 
Halteres rather pale throughout. Legs with the coxae and tro- 
chanters dull yellow, the femora similar, a little darkened at the tip; 
tibiae and tarsi yelloAvish brown. Wings pale yellow or brownish 
yellow, the costal cell and the stigma more saturated, the latter 
rather indistinct; a vitreous mark before the stigma extending into 
cell 1st M2; veins brown. Venation as in Plate XVI, fig. 16. 
Abdomen light yellow with a bro^vn subbasal spot on the sides 
of the tergites, most distinct on segments two to five. Hypopygium 
of the male (see Plate XVIII, fig. 37) having the ninth tergite (see 
Plate XIX, fig. 54) square or nearly vso, with a deep rectangular 
median notch on the caudal margin, the adjacent lobes obtusely 
rounded. Ninth sternite in contact with the ninth tergite, the 
pleurite complete or nearly so, the pleural suture being better indi- 
