The Nearctic leafminer of black walnut Coptodisca juglandiella (Chambers, 1874) was found in Hungary and reported as new for Europe. Larvae were found in leafmines on black walnut (Juglans nigra (L.)), white walnut (J. cinerea (L.)) and Arizona walnut (J. major (Torr.)); the latter two Juglans species are new host plant records for C. juglandiella. Mines of Coptodisca lucifluella (Clemens, 1860), another Nearctic invader, were found on leaves of bitternut hickory (Carya cordiformis (Wangenh.) K.Koch) and Caucasian wingnut (Pterocarya fraxinifolia (Lam). Spach.) (a new hostplant record), in addition to common walnut (Juglans regia L.). Interestingly, C. lucifluella is thought to have performed a host plant shift after its introduction into Europe, whereas C. juglandiella apparently did not. Coptodisca juglandiella has three generations in Hungary. The autumn generations of both species produced many more mines than the spring generations. One hymenopteran parasitoid specimen was reared from C. juglandiella. Larvae, mines and adults of C. juglandiella and C. juglandiella can be easily distinguished, differences are presented and illustrated. The genitalia of C. juglandiella are described for the first time.

A new species of eriophyid mites, Aceria bassicola sp. n. (Acari: Acariformes: Eriophyoidea: Eriophyidae), collected from Bassia prostrata (L.) Beck (Amaranthaceae), is described from Hungary based on females, males and nymphs.

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A revision of the Coleophora collection of the Hungarian Natural History Museum three years ago revealed that identification of specimens treated as Coleophora salicorniae Heinemann et Wocke, 1877 was incorrect. The species is lacking from the collection. However, several papers mention C. salicorniae as present in Hungary. During the last two years this species was found in two new localities by the authors, compared to previous studies. Larva, case and adult of the species are illustrated, and image of habitat as well as the distribution map in Hungary are presented. With 5 figures.

Abstract. The biology and larva of Glyphipterix loricatella (Treitschke, 1833) are described for the first time on the basis of material from two localities in Hungary, in the vicinity of Budapest. We reared larvae from Iris × germanica L. (Iridaceae), representing a new hostplant family for Glyphipterix. The larvae develop over a year in the leaves, later in the rhizome, where they spend the winter as mature larvae. The larvae eat themselves out of the rhizome in spring and pupate outside the rhizome in the soil in a cocoon, covered with soil particles. The pupal stage lasts 30-35 days. All developmental stages are illustrated.