In a collection of parasitic mites from Palestine sent by Prof. O. Theodor, Hebrew University, Jerusalem, the author found several larval mites which prove to be new species, one in the genus Euschöngastia the other two in the genus Trombicula. These are described and figured in the present paper along with a new species of the genus Blankaartia taken on a bird in Uganda and sent for identification by G. H. E. Hopkins, O.B.E. (formerly Senior Medical Entomologist, Kampala). The author wishes to acknowledge his thanks to the above donors for having given him the opportunity to examine these specimens.