Insecta - Blattodea - Mylacridae

Full reference: A. Handlirsch. 1911. New Paleozoic Insects from the Vicinity of Mazon Creek, Illinois. American Journal of Science, Series 4 31:353-377

Belongs to Orthomylacris according to A. Handlirsch 1911

Sister taxa: Orthomylacris alutacea, Orthomylacris analis, Orthomylacris antiqua, Orthomylacris berryi, Orthomylacris elongata, Orthomylacris franklini, Orthomylacris heeri, Orthomylacris lucifuga, Orthomylacris mansfieldi, Orthomylacris pennsylvanica, Orthomylacris pluteus, Orthomylacris recta, Orthomylacris rugulosa, Orthomylacris truncatula

Type specimen: YPM 61, a forewing. Its type locality is Mazon Creek (YPM collection), which is in a Westphalian D deltaic mudstone in the Carbondale Formation of Illinois.

Ecology:

Average measurements (in mm): forewing length 23.0