Full reference: A. Handlirsch. 1906. Revision of American Paleozoic insects. Proceedings of the United States National Museum 29(1441):661-820
Sister taxa: none
Type specimen: USNM 25631, a wing (fragment). Its type locality is Gibson Fork of Fifteen-Mile Creek, above Decota, which is in a Westphalian B terrestrial siliciclastic in the Kanawha Formation of West Virginia.
Average measurements (in mm): wing length 57.5