68 THE CANADIAN ENTOMOLOGIST 



Tipula bergrothiana, sp. n. 



Arctica group; related to centralis Loew., but smaller and the 

 male hypopygium different; wings of female atrophied. 



Male. — Length 10.5 mm.; wing 12.2 mm. 



Female. — Length 17 mm.; wing about 2 m. 



Frontal prolongation of the head grayish basally, more brown- 

 ish apically; palpi brown. Antennae with the scape rather bright 

 yellow; flagellar segments rather uniformly brown, the basal en- 

 largement a little darker than the rest of the segments and only 

 slightly enlarged. Head with the vertex light gray, more suffused 

 with brown behind and on the occiput. 



Mesonotal pra^scutum gray, the median thoracic stripe almost 

 obliterated, lateral stripes indicated only by the narrow, bright 

 brown margins; remainder of mesonotum gray. Pleura dull gray. 

 Legs with the coxae brownish gray; trochanters and femora yellow- 

 ish brown, the latter a little darkened outwardly; tibise and tarsi 

 slightly darker. Halteres dirty pale brown, the knobs dark brown. 

 Wings of the male elongate, in the type crumpled and this possibly 

 the normal condition although the venation is not distorted. 

 Wings brown and gray with hyaline areas as in septentrionalis 

 Loew., etc. 



Abdomen with the first tergite and the extreme base of the 

 second gray, the remainder of the abdominal tergites brown; a 

 dark brown median stripe; pleural membrane distinct dark brown, 

 simulating a lateral stripe; sternites brown, the caudal margins 

 narrowly pale. Male hypopygium small, simple, with the ninth 

 tergite as iki centralis, a shiny, heavily chitJnized saucer, the caudal 

 margin feebly concave medially to receive the inner pleural ap- 

 pendages; each caudal lateral angle produced into an acute tooth 

 and the margin of the saucer on either side with a smaller similar 

 tooth beyond mid-length. Ninth pleurite complete but small; 

 outer pleural lobe moderate in size, flattened, the inner face some- 

 what convex, the outer face pale brown with abundant appressed 

 hairs; a caudal inner angle of each pleurite produced dorsad in a 

 somewhat similar flattened lobe whose outer face is shiny and 

 abundantly provided with erect hairs; this lobe bends dorsad and 

 somewhat cephalad inside the outer pleural appendage; ninth 

 sternite with a deep, V-shaped median notch, beneath the point of 



