O. Merkl szerk.: Folia Entomologica Hungarica 69. (Budapest, 2008)

In the Index to Host Plants, beside the cited names of host plants the currently valid species and family names of the hosts are presented (Appendix 2). Serial number of the aphid species can also be found. The Synopsis of the Aphidoidea and Phylloxeroidea of Hungary contains the families, subfamilies, tribes, genera, subgenera (between parentheses), species and subspecies in current taxonomic position. RESULTS A total of 594 aphid species and subspecies are listed from 786 host plant species of 102 families. The superfamilies Aphidoidea and Phylloxeroidea in Hungary contain 594 species and subspecies belonging to 3 families and 156 genera. Two species, Aphis euphorbiae KALTENBACH, 1843 and Takecallis taiwanus (TAKAHASHI, 1926) had not previously been recorded in Hungary. The aphid fauna is dominated by the subfamily Aphidinae (50.6 and 63.3% of the total number of genera and species, respectively). The genus Aphis is represented by far the highest number (96) of species. The number of aphid species by higher plant taxa are as follows: Sphenopsida: 1, Pteropsida: 2, Coniferopsida 40, Dicotyledonopsida 497, and Monocotyledonopsida 69. Altogether 19 aphid species were reported without any host. Aphid species were found on 309 woody and 477 herbaceous host plants. The highest number of hosts was reported from the families Asteraceae (91), Rosaceae (88), Poaceae (51), Fabaceae (45), and Apiaceae (44). The highest number of aphid species was reported from the representatives of the families Asteraceae (120), Rosaceae (82), Salicaceae (57), Apiaceae (55), and Poaceae (43). Aphis fabae SCOPOLI, Myzus persicae (SULZER), Aphis gossypii GLOVER have the highest number of hosts, i.e. 137, 94 and 56 species, respectively (Appendix 2). The highest number of aphid species was found on maize (Zea mays) (19), Populus nigra (18), Populus alba (13) and Salix alba (13) (Appendix 2). SZALAY-MARZSÓ (1969) listed Myzus portulacae MACCHlATl, 1883 is a nomen dubium. Thelaxes dewildei HILLE RIS LAMBERS, (in litt.) mentioned by HALMÁGYI ( 1974) from Quercus robur is a nomen nudum. Aphis teucrii LICHTENSTEIN, 1884 from Teucrium chamaedrys, mentioned by SZELEGIEWICZ (1968<2), is also nomen nudum. Tinocallis zelkowae (TAKAHASHI, 1919) mentioned by RIPKA etal. (1996) from Zelkova serrata is not listed because of misidentification.