Insecta - Blattodea - Mylacridae

Alternative combination: Mylacris antiqua

Belongs to Orthomylacris according to A. Handlirsch 1906

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

Type specimen: Its type locality is Mazon Creek, USNM Lacoe Collection, which is in a Westphalian D interdistributary bay mudstone in the Carbondale Formation of Illinois

Ecology:

Average measurements (in mm): tegmen length 36.0