Crane-flies 1 



> i 



Locality: Holotype, o\ Bernard harbour, Northwest Territories 



August 1915 (F. Johansen). No. 826. 



This species is certainly close to T. hewitti, bul I cannot make the two 

 agree. Unfortunately each species is represented only by the unique male 

 type and I do not care to remove the abdomen to submit the male genitalia to 

 the critical study that some day may be necessary. More material from the 

 Arctic north-west would probably decide the status of these two species which 

 are closely allied but which certainly appear to be distinct. 



Tipula besselsoides, n. sp. 



General colouration grey; antenna? rather short, black; body clothed with 

 conspicuous erect hairs; femora light yellowish, tipped with black; ninth tergite 

 of the male hypopygium with a small, U-shaped notch, the lateral lobe- rounded. 



Male. — Length, 12 mm.; wing, 15-5 mm. 



Palpi black. Frontal prolongation of the head greyish black; uasus pro- 

 minent. Antennae (PI. II, fig. 19) black; first segment of the scape long and 

 slender, clothed with numerous outspreading hairs; flagellar segment- very short, 

 the basal swelling of the individual segments being about equal to the remainder 

 of the segment. Head broad, eyes rather small, widely separated; vertical 

 tubercle low; head dark grey with scattered setigerous punctures. 



Thorax dark grey, the praescutum with three indistinct, darker grey stripes; 

 thoracic interspaces with an abundant coarse, black hair. Habere- dull 

 brownish yellow. Legs with the coxa? grey clothed with numerous long pale 

 hairs as in besselsi O.S.; trochanters dark; femora light brownish yellow, the 

 tips broadly black; tibiae light brown, the tips broadly black; tarsi dark brown. 

 Wings nearly hyaline, the subcostal cell more yellowish; stigma brown, oval; 

 apex of the wings a little darkened; veins dark brown; obliterative streak extend- 

 ing from before the stigma into cell j/ 4 ; venation: crossvein nt-cu not far beyond 

 the fork of M. 



Abdomen dark grey, the segments conspicuously ringed with pale yellowish; 

 lobes of the hypopygium yellow. Male hypopygium with the ninth tergite 

 (PL III, fig. 39) rather extensive, the caudal margin somewhat rounded and 

 with a deep, U-shaped, median notch; at the inner margin of the lateral lol 

 a small tubercle; entire sclerite black, clothed with numerous short, appressed 

 hairs; suture between the tergite and sternite well-defined. Ninth pleurite 

 small, incomplete, the suture indicated only beneath; outer pleural appendage 

 (PI. Ill, fig. 31) a small, suboval flattened lobe, pale brownish yellow, the outer 

 face with abundant long pale hairs; inner pleural appendage (PI. III. fig. 12) 

 elongate, chitinized, at the base a rounded knob clothed with long, delicate 

 pale hairs, the outer margin with four stout bristles. Penis-guard a long, straighl 

 chitinized point, gradually narrowed from the base to the acute apex. 



Locality: Holotype, c\ Bernard harbour. Northwest Territories, July 1 14, 

 1916 (F. Johansen)/ No. 422. Paratopotype, \ No. 117. 



This species bears a strong superficial resemblance to T. besselsi Osten- 

 Sacken in the grey colouration with conspicuous long, erect pile; the legs are 

 differently coloured and the hypopygium of the male is very differently con- 

 structed in the two species. It also resembles Stygeropis parrii (Kirbj super- 

 ficially in colouration and the erect pile, but the verticillate antenna- and nearly 

 hyaline wings of the present species offer easy points for separation. 



Tipula subarctica, n. sp. 



Related to T. pribilofensis Alexander; general colouration dark; abdomen 

 reddish brown with a dark median stripe on both the tergites and sternites; 

 ninth tergite of the male hypopygium prominent with flattened, acute, lateral 

 arms; eighth sternite produced caudad into a broad, flattened, shovel-like, 



median lobe. 



