^^'•^•] NATURAL SCIENCES OF PHILADELPFIIA. 479 
rather enlarged at the base, veiy slightly upturnecl at their tips; 
sternal valves short, straight. 
i7a62to/.— Northeastern United States. 
Holotype, o^, 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., Alhanv Co., N. Y., near 
New Salem, June 12, 1915 (Alexander). 
Paratypes, No. 1, 100 c^'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. 100, cf, without locality, labelled ''O. Sacken"; No. 
107, 9, Lake Forest, Lake Co., Illinois, May, 1905 (Needham); 
No. 108, 9, Delaware, June 3, 1874; No. 109, cf, in copulatiori 
with the last. 
The type, allotype, and paratypes 1-104 are in the collection of 
the author: ^o. 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 University. 
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 Linmobia cinctipcs, L. indigena, Limnophila munda, 
L. areolata, L. toxoneura, Tipida 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 Pinguimla 
vulgaris, Primula mistassinica and Saxifraga aizoides. 
Tipula fuliginosa Say. 
Tipida fuUginosa Say; Journal of the Academy of Natural Science.s of 
Philadelphia, vol. .3, p. 18, 1823 {Ctenophom). 
1 1. pula. s pec iosa Loew; Berhner Entomologische Zeitschrift, vol 7 n '>88 
Perhaps the most strildng 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- 
