x1 is a polyneopteran insect of species/breed x2
The word jalra can technically be used to mean this, since it is used to refer to blattodeans and orthopterans, which are not in the same order (though it doesn't state whether other insects, e.g. mantises, are also jalra.) See also blatodi, embiiodi, famsatodi, grilblatodi, jadji, jalra, mantodi, mantofasma, plekoptera, xurbela, zorpate, cinki, cumba.