Abstract
Fifteen impressions of crane flies were discovered during investigations of fossil insects from the Ruby River Basin of Montana. Eight specimens were preserved well enough for taxonomic descriptions. The 8 specimens represent 2 new species, each belonging to the genus Tipula L. These species are the 1st members of this genus to be described from this locality. The fossils were found in paper shales of Oligocene age between Peterson and Morman Creeks, sec. 23, T. 7 S, R. 5 W. Madison County, Mont. The diggings are located ca. 13 miles from the town of Alder, Mont. A brief description of the geologic history of this region can be found in a previous paper (Lewis 1971).
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