Alternative spelling: Mylacrididae
Invalid subtaxa: Blattina bretonensis Scudder 1874 [nomen dubium], Lithomylacris panperata Scudder 1890 [nomen dubium], Lithomylacris pauperata Scudder 1890 [nomen dubium], Lithomylacris pittstoniana Scudder 1879 [nomen dubium], Lithomylacris pittstonianum Scudder 1879 [nomen dubium], Lithomylacris simplex Scudder 1879 [nomen dubium], Mylacris ampla Scudder 1895 [nomen dubium], Mylacris bretonense Scudder 1874 [nomen dubium], Mylacris bretonensis Scudder 1874 [nomen dubium], Mylacris gurleyi Scudder 1895 [nomen dubium], Mylacris pennsylvanica Scudder 1879 [nomen dubium], Mylacris pennsylvanicum Scudder 1879 [nomen dubium], Mylacris priscovolans Scudder 1884 [nomen dubium], Paromylacris ampla Scudder 1890 [nomen dubium], Promylacris rigida Scudder 1890 [nomen dubium]
Parent taxon: Blattodea according to E. A. Jarzembowski and J. W. Schneider 2007
Sister taxa: Blaberoidea, Compsoblattidae, Corydioidea, Diechoblattinidae, Eoblattodea, Leptoblattina, Mutoviidae, Mylacridina, Neorthroblattinidae, Oiratia, Poroblattinidae, Ungoneurites, Phyllodromiidae, Anaplectidae, Caloblattinoidea, Blattuloidea, Spiloblattinidae, Raphidiomimidae, Irreblatta, Polyphagoidea, Mesoblattinoidea, Eublattula, Blattoidea, Blattellidae, Aleuronympha, Blattidae, Blaberidae, Stantonia, Ptiloteuthis, Araripeblattidae, Hsuopterites, Parallelophora anomala, Parallelophora acuta
Subtaxa: Actinomylacris, Amblymylacris, Aphelomylacris, Austromylacrites, Brachymylacris, Chalepomylacris, Cyphomylacris, Exochomylacris, Goniomylacris, Hemimylacrinae, Hemimylacris, Lithomylacris, Moravamylacris, Mylacridae carbonina, Mylacridae pseudocarbonum, Mylacrinae, Mylacris, Opsiomylacris, Orthomylacrinae, Orthomylacris, Paromylacris, Phthinomylacris, Platymylacris, Promylacris, Ptilomylacris, Rhodesiomylacris, Sooblatta, Soomylacris, Stenomylacris
Ecology: