S. Mahunka szerk.: Folia Entomologica Hungarica 49. (Budapest, 1988)

Acknowledgement We wish to express our gratitude to our colleagues (see in sampling data) who participated, or collected whiteflies for our collection, to dr. P. SOLYMOSI for the determination of some host plants and to dr. B. NAGY for critically reviewing the first draft of this manuscript. SPECIES LIST AND COLLECTING DATA 1. Aleurochiton acerinus Haupt, 1934. According to MOUND and HALSEY (1978) monophagous on Acer campestre. Distribution: Austria, Czechoslovakia, Germany, Hungary, Poland, U.S.S.R., Yugoslavia; Rumania was not mentioned in the MOUND and HALSEY (1978) catalogue, however, this species was reported earlier from this country (DOBREANU and MANOLACHE 1969), Italy (RA PIS ARD A 1983). New data: I. Bulgaria: Sofia-Vitosa, 3.10.1982, Acer tataricum, F:2 (85), newforthe . Bulgarian fauna. II. Czechoslovakia: Praga-Ruzine, 3. 10.1985, Acer campestre, F: 1 (120), III. France: Toulouse, 10.10.1979, Acer campestre, leg. Kozár and Canard, F: 1 (63), new for the French fauna. IV, Hungary: Bátorliget, 28.06. 1975, Acer sp., leg. Kosztarab and Kozár, F:l (66); Budapest, 13.09.1979, Acer campestre, F: 1 (50); Dömös, 8. 09. 1984, Acer campestre, F:l (104); Dunabogdány-Paprét, 5.09.1986, Acer campestre, F: 1 (125); Nadap, 26.09.1985, Acer tataricum, F: 1 (116); Sátorhely, 27.08.1981, Acer sp., leg. Kozár and Nagy, F:l (69); Szársomlyó, 27.08.1981, Acer sp., leg. Kozár and Nagy, F: 1 (70); Szeged, 12.09.1981, Acer campestre, F: 1 (72); Szögliget-Ménesvölgy, 30.07. 1987, Acer campestre, F:l (134); Tahi-Hegyesdi kapu, 5.09.1986, Acer campestre, F: 1 (127); Vértesszentkereszt, 18.10.1984, Acer campestre (107); Visegrád, 29. 09. 1979. Acer sp., leg. Yasnosh, F: 1 (52); Visegrád-Kaán forrás, 5.09.1986, Acer campestre, F: 1 (126). V. Italy: Bologna, 19. 09.1982, Acer campestre, F: 1 (78). VI. Rumania: Bucharest, 18. 10. 1983, Acer campestre, F: 1 (90); Bucharest, 20.10.1983, Acer campestre, F:2 (99). 2. Aleurochiton aceris (Modeer, 1778) (= A. complanatus Baerensprung, 1849). According to MOUND and HALSEY (1978) monophagous on Acer platanoides. Distribution: Austria, Czechoslovakia, England, France, Germany, Hungary, Netherlands, Poland, Rumania Sweden, U.S. S.R., Yugoslavia (MOUND and HALSEY 1978); Finland (HULD EN 1986), Italy (IACCARESIO and TREMBLAY 1977). New data: I. Bulgaria: Dybnik, 7. 10. 1982, Acer platanoides, leg. Kozár and SzalayMarzsó, F: 2 (88); Sofia, 4.10.1982, Acer platanoides, leg. Kozár and Szalay-Marzsó, F: 2 (87), new for the Bulgarian fauna. II. Czechoslovakia: Chlum, 28.08.1979, Acer platanoides, F:2 (46); Praga-Ruzine, 3.10.1985, Acer platanoides, F: 1 (118); Smolenice, 21.11.1978, Acer sp., F:l (39). III. France: Toulouse, 10. 10. 1979, Acer platanoides, leg. Kozár and Canard, F:l (62). IV. G. D.R. : Eberswalde, 27. 10. 198?, Acer platanoides

, F:2 (81); Ekhart, 29.10. 1982, Acer platanoides, F: 1 (84). V. Hungary: Budapest, 6.06.1983, Acer sp., (84); Csopak, 3.10.1979, Acer platanoides, leg. Kozár and Yasnosh, F:2 (53); Debrecen, 12.09. 19o6, Acer platanoides, F: 1 (128); Dobogókő, 18.08.1979, Acer sp., F: 1 (61); Kápolnásnyék, 26.09.1985, Acer platanoides, F:2 (113); Majk, 18.10.1984, Acer platanoides, F:2 (105); Vaja, 13.10.1986, Acer platanoides, F:3 (129); Zicsiujfalu, 8.09.1981, Acer sp., F: 1 (71). VI. Poland: Kornik, 12.10.1979, Acer platanoides, F:2 (58); Kornik, 12.10.1979, Acer trinahata, F:2 (57). VII. Rumania: Bucharest, 18.10.1983, Acer platanoides, F:2 (91). VIII. U. S. S. R. : Kisinev, 4.09.1985, Acer platanoides, F:2 (112); Ternovka, 4.09.1985, Acer platanoides, F:2 (111). 3. Aleurochiton (= Nealeurochiton) pseudoplatani Visnya, 1936. The only Aleurochiton species recorded from different Acer species, but mostly from A. pseudoplatanus (MOUND and HALSEY 1978). Distribution: Austria, Czechoslovakia, Germany, Hungary, Netherlands, U.S.S.R; Italy (IACCARDMO and TREMBLAY 1977). New data: I. Czechoslovakia: Karlstein, 1.10.1985, Acer pseudoplatanus, F: 1 (117); Praga-Ruzine, 3.10.1985, Acer pseudoplatanus, F: 1 (119). II. Hungary: Velence, 26.09.1985, F:l (115). III. Poland: Blazhejevka, 11. 10. 1979, Acer sp.. F:2 (54). IV. Rumania: Bucharest, 19. 10. 1983, Acer pseudoplatanus, F: 1 (93). This species is new for the Rumanian fauna, its presence in Rumania was supposed by DOBREANU and MANOLACHE (1969).