THE CANADIAN ENTOMOLOGIST 227 



distinct from that of Tipula ultima, where the ninth tergite is deeply notched, 

 the lateral lobes very large, flattened, directed proximad and with the margins 

 provided with numerous tiny chitinized denticles; all the other lobes and ap- 

 pendages of the hypopygium are much smaller and less complicated than in T. 

 ultima. It should be noted that the present species is on the wing during May 

 whereas T. ultima is a characteristic autumnal species. 



Tipula h'gropis, sj). n. 



Allied to T. occidentaUs Doane; general coloration dark yellowish gray, the 

 mesonotal praescutum with four brownish gray stripes; wings with a very strong- 

 brown suffusion, the obliterative streak unusually broad and conspicuous; 

 a b omen obscure brown ; male hypopygium with the ninth tergite with a deep, 

 \'-shaped notch; eighth sternite with two submedian pencils of long yellow 

 hairs. 



Male. — Length about 20 mm.; wing 21 mm. 



Frontal prolongation of head dark brown, still darker laterally; no evident 

 nasus, only a tuft of long hairs at this point; palpi brown, the basal two seg- 

 ments lighter in colour. Antennae dark brown, the scapal segments slightly 

 paler brown. Head brownish gray, the occiput darker; the vertex with in- 

 distinct lines that are concentric from the occiput. 



Mesonotal praescutum yellowish gray with four brownish gray stripes, 

 the intermediate pair narrowly separated for most of their length by a line of 

 the ground colour, the ends contiguous; scutum light gray, the lobes largely dark 

 gray; scutellum pale yellowish gray with a capillary brown median line, the 

 lateral portions dark; postnotum yellowish gray, the posterior margins darker. 

 Pleura dull gray, more yellowish gray before the base of the halteres. Halteres 

 dark brown, the base of the stem brighter. Legs with the coxae dull gray, the 

 outer face sparsely yellow pollinose; femora and tibiae reddish brown, narrowly 

 tipped with dark brown; tarsi brown. Wings with a very strong brownish 

 tinge; cells C and Sc more yellowish brown; cells M and Cu adjoining \e'\n Cu 

 more yellowish ; a conspicuous brown spot at the end of Sc and another including 

 the stigma; a paler brown seam at the origin of Rs, along the cord and at the 

 tip of vein Cii^; a very conspicuous white obliterative streak extending from cell 

 C across cells 1st Ri, the end of R, the basal two-fifths of cell 1st Mo, into the base 

 of cell M:,. \'enation: i?2+4 shorter than the distal section of R^; petiole of cell 

 M2 a little more than one-half of m. 



Abdomen obscure brownish, the tergites very indistinctly trivittate with 

 still darker brown, the distal segments more uniformly darkened; sternites 

 brownish gray. Male hypopygium moderately large. Ninth tergite with a 

 very deep \'-shaped median notch that extends almost back to the eighth seg- 

 ment; the lateral lobes have the ventral edge produced into a flattened, chitinized 

 blade, the tips running out into small, chitinized points. Ninth pleurite rather 

 conspicuous, conical, the apex obtusely rounded but flattened; outer pleural 

 appendage conspicuous, rather stout, dark brown, clothed with long, dark 

 hairs. Ninth sternite with a profound notch that is narrowly margined with 

 pale, from its dorsal proximal angle hang two long, pendulous lobes. Eighth 

 sternite with a broad, U-shaped notch, on either side of the median line of the 

 base of the notch, a pencil of very long yellow bristles; lateral lobes produced 



