1916.] NATURAL SCIENCES OF PHILADELPHIA. 531 



XXVII, fig. 44): basal deflection of TtVe very short or obliterated, 

 the cross-vein r-m being correspondingly longer, arcuated; cell Mi 

 short, about one-half as long as its petiole. 



Abdomen short, the tergites dark brown, the hypopygium even 

 darker. Male hypopygium (Plate XXXI, fig. 94) powerfully 

 enlarged, the pleurites not conspicuously elongated ending in a 

 rounded ventral lobe that is covered with numerous hairs; the single 

 pleural appendage a powerful curved arm that is rather blunt at the 

 tip, with numerous long hairs on the inner face and at the apex 

 where they are exceedingly numerous and spinous, at the extreme 

 apex very tiny. 



Habitat. — -British Columbia. 



Holotype, d\ Rogers Pass, British Columbia, August 9, 1915 

 (Bradley). 



Allotype, 9 , in copula with the type. 



Type, mounted in balsam, in the collection of Cornell University. 



This interesting crane-fly is dedicated to the collector, Dr. J. 

 Chester Bradley, of Cornell University, to whom I am indebted for 

 assistance and advice upon many subjects. 



Tribe Limnophilini. 



LIMNOPHILA Macquart. 



Limnopkila Macquart; Suit a Buffon, vol. 1, Histoire Naturelle Dipteres, 

 p. 94 (1834 i. 



Limnophila irrorata Johnson. 



Limnophila irrorata Johnson; Proceedings of the Boston Society of Natural 

 History, vol. 34, No. 5, pp. 127, 128, PI. 16, fig. 17 (1909). 



This interesting species was described from the unique female 

 found floating dead in a water receptacle at Riverton, New Jersey, 

 and had apparently not been found since that time. The fly was 

 rediscovered in 1915 while the author was searching for Venus 

 fly-traps, Dioncea muscipula Ell., near Jacksonville, North Carolina. 

 The male sex is here described and the specimen made the allotype : 



Male. — -Length 7.6-7.8 mm.; wing, 7-7.3 mm. Agrees closely 

 with the female, but the head a little more brownish; petiole of cell 

 R 2 of the wings very short, not as long as the r-m cross-vein; basal 

 deflection of Cn x inserted beyond mid-length of cell 1st M t . 



Allotype, <?, Camp Perry, Onslow County, North Carolina, July 

 9, 1915 (Alexander). 



Allotype in the collection of the author. 



The following notes on the natural habitat of the species may be 

 given: 



