Legendreia magnifica gen. et sp. nov., the type species of the new family Legendreiidae fam. nov., is described from the middle Permian Yinping Formation of China, on the basis of a complete forewing. Its unique pattern of venation of the cubital area allows us to question a previous hypothesis of a phylogenetic relationship between the orthopteran family Tcholmanvissiidae and the 'order' Titanoptera. If the latter clearly belongs to the clade Panorthoptera, its current position in Orthoptera is weakly supported and will need further investigation.