Alien eating alien - rapid spread of Aceria fraxiniflora, a non-native gall mite of the invasive green ash (Fraxinus pennsylvanica) in Central-Eastern Europe.

The North American gall mite Aceria fraxiniflora was first recorded in Europe in southeast Hungary in 2017. Since then, it has shown a remarkably rapid spread on its host, the also North American green ash (Fraxinus pennsylvanica). By the beginning of 2023 it has been recorded in eight Central-Eastern European countries.

A new species of and redescription of Bozai, 1970 (Acari, Tenuipalpidae).

A new tenuipalpid mite species, , is described from Central-Hungary on leaves of the endemic Hungarian statice Limoniumgmeliniisubsp.hungaricum (Plumbaginaceae) based on females, nymphs and larva. The previously described endemic flat mite, Bozai, 1970 is redescribed.

A new Aceria species (Acari: Eriophyidae) from Spain on (Dipsacaceae) and supplementary descriptions of and from spp. (Solanaceae).

A new species of eriophyoid mite, Aceria pycnocomi sp. nov., associated with Pycnocomon rutifolium (Dipsacaceae), is described and illustrated from Spain.

A new species (Acari: Prostigmata: Eriophyoidea) from (Caryophyllaceae) in Hungary.

A new species of eriophyoid mite, Aceria wassalberti n. sp. associated with Minuartia frutescens (Caryophyllaceae), is described and illustrated from Hungary.

New species of Dinychus Kramer, 1886 from fragments of the former Gondwanaland (Acari: Uropodina: Dinychidae).

We describe two new species of Dinychus Kramer, 1886 from fragments of the former Gondwanaland supercontinent. Dinychus indica sp. nov.

Eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from Hungary: a new species on Agrimonia eupatoria (Rosaceae) and new record on Convolvulus arvensis (Convolvulaceae).

A new species of eriophyoid mite, Aculus castriferrei n. sp., associated with Agrimonia eupatoria (Rosaceae) is described and illustrated from Hungary.

On the arboreal acarofauna of Hungary: some new and rare species of prostigmatic mites (Acari: Prostigmata: Tydeidae, Iolinidae and Stigmaeidae).

Eleven arboreal prostigmatic mites from the families Tydeidae, Iolinidae and Stigmaeidae (Prostigmata) are recorded from Hungary. Among them, 8 species are new for science: Tydeus narolicatus Kazmierski and Ripka sp. nov.