1915.] NATURAL SCIENCES OF PHILADELPHIA. 479 



rather enlarged at the base, verj^ sUghtly upturned at their tips; 

 sternal valves short, straight. 



Habitat. — Northeastern United States. 



Holotype, c^, Buell Mt., Fulton Co., N. Y., altitude 1,800 feet, 

 June 13, 1914 (C. P. and W. P. Alexander). 



AUotj^pe, 9 , Southern Helderburg Mts., Albanj^ Co., N. Y., near 

 New Salem, June 12, 1915 (Alexander). 



Paratypes, No. 1, 100 cf' s, 3 9 's, with the allotype; No. 104, cf , 

 Taughannock Falls, Tompkins Co., N. Y., May 19, 1911 (Alexander); 

 No. 105, cf , Mt. Equinox, Bennington Co., Vt., June 5, 1910 (John- 

 son); No. 106, cf, without locality, labelled "0. Sacken"; No. 

 107, 9, Lake Forest, Lake Co., Illinois, May, 1905 (Needham); 

 No. 108, 9, Delaware, June 3, 1874; No. 109, cf, in copulation 

 with the last. 



The type, allotype, and paratypes 1-104 are in the collection of 

 the author; No. 105 in the collection of the Boston Society of Natural 

 History; Nos. 106, 108, and 109 in the Museum of Comparative 

 Zoology; No. 107, in the collection of Cornell LTniversity. 



The type of this beautiful fly was taken on the shaded eastern 

 slopes of Buell Mt., one of the southern peaks of the Adirondacks. 

 It occurred in the hardwood forest which clothes the mountain, in 

 the neighborhood of small granitic cliffs and near the dried-up bed 

 of a mountain torrent. Crane-flies which were flying with this 

 species included Limnohia cinctij)es, L. indigena, Limnophila munda, 

 L. areolata, L. toxoneura, Tipula pallida, T. valida and both sexes of 

 T. fuliginosa. 



The paratype No. 104 was taken in the great gorge of the Taughan- 

 nock Falls near Cayuga Lake, N. Y. The insect occurred at the summit 

 of the talus slopes in a place wet with the falling spray of small 

 accessory streams; the more notable plants in this portion of the 

 gorge and growing at the top of the shale at this season are Pinguicula 

 vulgaris, Primida mistassinica and Saxifraga aizoides. 



Tipula fuliginosa Say. 



Tipula fuliginosa Say; Journal of the Academy of Natural Sciences of 



Philadelphia, vol. 3, p. 18, 1823 {Ctenophora) . 

 Tipula speciosa Loew; BerUner Entomologische Zeitschrift, vol. 7, p. 288, 



1863. 



Perhaps the most striking result of the study of American crane- 

 flies during the past few years has been the discovery that the Tipula 

 speciosa Loew is the male sex of fuliginosa Say. The evidence that 

 this is the case has been slow in accumulating, but is now so con- 



