Compounds with arthropodicidal activity having the general formula (I); ##STR1## wherein R.sup.1 is a halo group; or a lower alkyl, lower alkoxy or lower alkylthio group, in each of which the alkyl group may be substituted with one or more halo groups; R.sup.2 is hydrogen or a halo or methyl group; or R.sup.1 and R.sup.2 together form a methylenedioxy, or a difluoro-methylenedioxy group or, R.sup.1 and R.sup.2 together with the carbon atoms to which they are attached, form an aromatic ring; R.sup.3 is hydrogen, CN, or C.ident.CH; Y is --CH-- or --N--; Z is H or F; and X.sup.1, X.sup.2, X.sup.3, and X.sup.4 are the same or different and each is hydrogen or a fluoro, bromo or chloro group; with the proviso that Y is --N-- when Z is H.
具有杀节肢动物活性的化合物具有一般式(I);##STR1##其中R.sup.1是卤素基团;或者是较低的烷基,较低的烷氧基或较低的烷
硫基团,其中烷基团可以被一个或多个卤素基团取代;R.sup.2是氢或卤素或甲基基团;或R.sup.1和R.sup.2一起形成亚甲基二氧基,或二
氟亚甲基二氧基基团,或R.sup.1和R.sup.2与它们所连接的碳原子一起形成芳环;R.sup.3是氢,CN或C.ident.CH;Y是--CH--或--N--;Z是H或F;X.sup.1,X.sup.2,X.sup.3和X.sup.4相同或不同,每个是氢或
氟,
溴或
氯基团;但是,当Z为H时,Y为--N--。