Mastigoproctus giganteus (Lucas)
Synonymy.—Thelyphonus giganteus Lucas [Dr. R. E. Crabill, personal communication, 1958].
Experimental prey.—Cockroaches, U.S.A. (Marx, 1892, 1894): Immature whip scorpion captured and fed on one or two cockroaches a week. It lived on this diet for about two years.