William Harris Ashmead initially described the species in 1895 and circumscribed a new genus, Lysiognatha, for it.

[1] R. A. Cushman synonymized Lysiognatha with Idiogramma, making the species' name I.

[6] The specific name honors John Henry Comstock, who sent Ashmead the specimens in the type series.

Herbert Huntingdon Smith collected the specimens in 1872 at Cayuga Lake, Ithaca, New York.

[1] Its distribution includes Canada, the United States, and northeast Mexico.