S. Mahunka szerk.: Folia Entomologica Hungarica 58. (Budapest, 1997)

Ligustrum ovalifolium; Aceria marshalli occurring on the lower side of the leaves of Acer platanoides; Aculops gleditsiae occurring on the under-side of the leaves of Gleditsia triacanthos; Aculops rhodensis making mixed population with other eriophyoid species on the leaves of Salix alba and S. elaeagnos; Aculus knowltoni vagrant on leaves of Populus x canescens and P. grandidentata in addition to P. alba; Anthocoptes striatus vagrant on leaves of Juglans regia; Anthocoptes transitionalis vagrant on the lower side of the leaves of Acer platanoides; Calepitrimerus occithujae found on the shoots of Thuja orientális; Coptophylla lamimani collected from leaves of Corylus avellana and C. colurna; Diptacus corni occurred on the leaves of Cornus sanguinea; Eriophyes brownei found on flowers and fruits, on the base of sepals of Symphoricarpos albus; Eriophyes burtsi causing blister galls on the leaves of Sorbus aucuparia; Eriophyes emarginatae living on the leaves of Prunus domestica; Rhinotergum schestovici collected from the lower side of the leaves of Prunus spinosa; Stenacis palomaris occurring frequently on the galls of buds and flowers of Salix alba, S. caprea, S. elaeagnos, S. matsudana 'Tortuosa ', S. 'Mesuneco ' and S. purpurea; Tegolophus califraxini vagrant on the under-side of the leaves of Fraxinus angustifolia, F. excelsior and F. ornus; Tegonotus pseudoobtusus vagrant on the leaves of Acer campestre; Tetraspinus lentus causing the silver then browny discoloration of the leaves of Syringa vulgaris. Aceria ligustri, A. marshalli, Aculus knowltoni, Anthocoptes transitionalis, Calepitrimerus occithujae and Eriophyes burtsi are new species for the European fauna. Out of the host-plants 66 species proved to be new. The heaviest infestation was caused by Eriophyes tiliae and Aculus ballei on linden, by Stenacis palomaris, Anthocoptes Salicis and Aculus gemmarum on willow, by Aceria populi and Aculus mogeri on poplar species, by Aceria fraxinivorus and Tegolophus califraxini on ash, by Shevtchenkella serratus on maple and by Tetraspinus lentus on lilac. Most eriophyoid species: 16 on willow and 11 occurred on maple species. LITERATURE Armine, J. W. Jr. (1996): Keys to the World Genera of the Eriophyoidea (Acari: Prostigmata). Indira Publ. House, USA, 186 + vi pp. Bálás, G. (1941): Pótlás Magyarország gubacsaihoz (Cecid). Budapest Typographia Univ.. 000 pp. Bálás, G. (1948): A magyar kertek gubacsfaunája III. Agrártud. Egy. Kert- és Szőlőgazd. Kar. Közleményei 12: 1-20. Bálás, G. és Sáringer, Gy. (1982): Kertészeti kártevők. Akadémiai Kiadó, Budapest, 000 pp. Bognár, S. és Huzián, L. (1979): Növényvédelmi Állattan. Mezőgazdasági Kiadó, Budapest, 000 pp. Farkas, FI. (1965): Spinnentiere, Eriophyidae (Gallmilben). In: Die Tierwelt Mitteleuropas, Bd. 3, Lief 3. Verlag von Quelle & Meyer, Leipzig, 155 pp. Farkas, H. (1966): Gubacsatkák-Eriophyidae. In: Magyarország Állatvilága (Fauna Hungáriáé), 18, 15. Akadémiai Kiadó, Budapest, 000 pp. Jenser, G. (1996): Gubacsatkák-Eriophyidae. In: Jermy, T. és Balázs, K. (eds): A növényvédelmi állattan kézikönyve, 6., XXX Kiadó, Budapest, pp. 24-50. Keifer, H. H. (1952): Eriophyid Studies XIX. The Bulletin Dep. of Agrtc. State of Callf 41: 69-70. Mezei, I. (1994): Adatok az Acalitus phloeocoptes (Nalepa) (Eriophyidae, Acarina) biológiájához. Növényvédelem 30 (12): 549-554.