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. Plead with the vertex light gray, more suffused 
with brown behind and on the occiput. 
Mesonotal prascutum gray, the median thoracic strip^e almost 
obliterated, lateral stripes indicated only by the narrow, bright 
brown margins; remainder of mesonotum gray. Pleura dull gray. 
Legs with the coxa* brownish gray; trochanters and femora yellow- 
ish brown, the latter a little darkened outwardly; tibiae 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; sternifes brown, the caudal margins 
narrowly pale. Male hypopygium small, simple, with the ninth 
tergite as i!n 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 plcurite 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 
