UNDESCRIBED CRANE FLIES FROM THE HOLARCTIC 

 REGION IN THE UNITED STATES NATIONAL MUSEUM 



By Charles P. Alexander 

 Of the Massachusetts Agricultural College, Amherst 



The crane flies (Tipulidae) described at this time were included in 

 large series sent to me for determination by Dr. J. M. Aldrich and 

 Dr. H. G. Dyar, the majority having been collected by them in the 

 Western States and Canada. The material from western China was 

 collected by the Rev. D. C. Graham and presented by him to the 

 national collection. I wish to express my thanks to these gentlemen 

 for their kind cooperation in making known these neglected flies. 

 The types are preserved in the collection of the National Museum, 

 with the exception of that of Dicranoptycha occidentalism new species. 



PALAEAECTIC SPECIES 



BRITHURA NYMPHICA. new species 



General coloration rich brown; antennal flagellum yellow; dorso- 

 pleural region of thorax conspicuously ochreous; ventral portion of 

 the pleurotergite produced into a flattened lobe, the cephalic side of 

 which is densely velvety; femora yellow, the tips conspicuously 

 blackened; wings brown, sparsely variegated with yellow; Sc-^ lack- 

 ing; r-Wj reduced; m-cu long and sinuous, longer than the distal 

 section of Cu^. 



Female. — ^Length about 38 mm. ; wing, 24 mm. ; abdomen alone, 25 

 mm. ; its greatest width, 6.4 mm. 



Frontal prolongation of the head long, dark chestnut brown, the 

 nasus long and powerfully developed ; basal segments of palpi dark 

 brown, the third segment paler, the last segment black with the 

 extreme tip brightened. Antennae with the first scapal segment 

 dark reddish brown, the second segment fulvous; flagellum pale 

 yellow, the basal enlargement of the individual segments scarcely 

 darker; verticils all basal in position, very long and conspicuous, 

 including those of the reduced terminal segment. Head dark brown, 

 the orbits paler; vertical tubercle conspicuous, the tip slightly 

 decurved. 



No. 2698.— Proceedings U. S. National Museum, Vol. 72, Art. 2 



55413—27 1 1 



