62 THE CANADIAN ENTOMOLOGIST 
ation: cell R2 sessile or very short-petiolate; cell Mi lacking by the 
fusion together of veins Mi and M2. 
Abdomen dark brown, the sternites paler; female ON'ipositor 
long, brownish yellow. 
Habitat. — Northeastern United States. 
Holotype.— d', Bools Hillside, Ithaca, N.Y., June 4, 1917, 
(Alexander). 
Allotopotype. — 9 . 
Paratopotypes.—S d's, 2 9 s, June 4-13, 1917. 
Paratype.—d", McLean, N.Y., May 31, 1913. 
T>pe in the collection of the author. 
Readily distinguished from L. teniiicornis O.S., its closest ally, 
by the lack of cell Mi of the wings. The usual flight-period of the 
species is presumably in late May and the first week of June. The 
season of 1917 was very cold and backward, at least two weeks 
late by mid-June. 
Sub-famih- Tipulince. 
Tribe Tipulini. 
Tipula aperta, n. n. for T. imperfecta Alexander. 
(Proc. Acad. Nat. Sci. Phila., Sept., 1915, p. 484-485) not 
T. imperfecta Brunetti (Rec. Indian Museum, vol. 9, 1913, p. 
260). 
Tipula sackeniana, sp. n. 
Tricolor group; close to 2\ tricolor Fabr.; coloration reddish 
brown ; male hypopygium without a pencil of reddish hairs on the 
sides of the caudal margin of the ninth tergite. 
J\fa/e.— Length 16.8-17.5 mm.; wing 15.5 mm. 
Female. — Length about 18 mm.; wing 17.5 mm. 
Frontal prolongation of the head with the dorsal half pale 
brownish yellow, the ventral portion darker, with a dark, lateral 
line; palpi dark brown. Antennae with the scape dark brown; 
flagellar segments light yellow, the basal enlargement brown. 
Vertex light gray in front and very narrowly along the inner 
margin of the eyes; remainder of the vertex brownish gray with a 
narrow, brown line; an orange spot on the sides of the vertex at 
the narrowest part; occiput similar in colour. 
