484 PROCEEDINGS OF THE ACADEMY OF [Sept., 
narrow; eighth tergitewith the margins flattened, conspicuously 
expanded; tergal valves of the ovipositor long, pale (Hudsons 
Bay Territory) '. piliceps sp. n. 
Color of the thorax blue-gray with the stripes almost black, 
broad, and the median pair tending to become confluent; 
median vitta of the head distinct; dorsal abdominal vitta 
broader, more diffused; eighth tergite with the margins not 
conspicuously expanded; tergal valves of the ovipositor 
smaller (Northern Greenland; Polaris Bay) besselsi 0. SJ 
Tipula imperfecta sp, n. 
Coloration grayish brown, the thoracic stripes indistinct; cell 
1st M2 open by the atrophy of the medial cross-vein. 
Female. — Length al^out 11 mm.; wing, 10.5 mm. 
Frontal prolongation of the head rather short, yellowish brown. 
Palpi brown. Antennae with the basal segments dull yellow, the 
flagellum dark brown; antennae rather long for this sex. Head dull 
gray with a narrow dark brown median vitta. 
Pronotum dark grayish brown, the scutellum more yellow on the 
sides. Mesonotai prsescutum dark grayish brown, the stripes in the 
type specimens indistinct; scutellum a little paler. Pleura with 
the mesopleuree rather clear gray, the posterior pleurites dull light 
yellow. Halteres dull in color, the knobs darker brown. Legs 
with the coxae dull yellow, suffused basally with grayish brown; 
trochanters brownish yellow; femora dull yellow, broadly dark 
brown at the apex; tibiae similar, narrowly dark l^rown at the apex; 
tarsi brown. Wings light gray, the stigma yellowish brown; an 
indistinct vitreous band before the stigma. Venation (see Plate 
XVI, fig. 9). 
Abdominal tergites dull brownish yellow, the caudal margins of the 
segments broadly pale; a broad dorso-median vitta consisting of 
broad V-shaped triangles on each segment, interrupted by the pale 
caudal margin to each segment; the apex of the triangle is in front; 
indistinct brown sublateral bands and a broad pale margin to the 
tergites; tergites seven to nine dark brown, excepting the narrow, 
pale, caudal and lateral margins; sternites dull yellow with a broad 
brown median band which is clearer on the terminal segments. The 
ovipositor has the ninth tergite (see Plate XXI, fig. 86) suddenly 
narrowed into a cylindrical rectangular plate, the dorsal valves of 
the ovipositor feebly cliitinized, not serrated, lying transversely. 
Habitat. — Eastern Canada, 
''besselsi Osten Sacken ; Proceedings of the Boston Socictij of Natural Historij, 
vol. 19, p. 42 ; 1876. 
