S. Mahunka szerk.: Folia Entomologica Hungarica 61. (Budapest, 2000)

Notes on Andricus malpighii (Adler) - valid name to replace Andricus nudus Adler (Hymenoptera: Cynipidae) J. Pujade-Villar and G. Melika Notes on Andricus malpighii (Adler) - valid name to replace Andricus nudus Adler (Hymenoptera: Cynipidae) — We propose Andricus malpighii (Adler, 1881 ) as a valid name for a Palaearctic oak cynipid gall wasp species currently known as Andricus nudus Adler, 1881. Key words: Cynipidae, taxonomy, synonymy, gall inducing wasps. Adler (1881) described two new oak cynipid gallwasp species, Aphilotrix malpighii Adler, 1881 and Andricus nudus Adler, 1881, and in the same paper proved that these two species are alternate, asexual and sexual generations of the same species. In Dalla Torre's (1893) catalogue citation of pages where Adler described these two species were erroneously changed and many subsequent authors reproduced this mistake. Docters van Leewen (1957) determined some galls as Andricus malpighii Adler fonna nudus Adler but according to Wiebes-Rijks (1976) these galls were Andricus quadrilineatus Hartig (= kiefferi Pigeot). Probably this taxonomic mistake was the reason for not considering the name proposed by Docters van Leewen (1957) as a valid one. After consulting the original Adler (1881) work and according to the International Code of Zoological Nomenclature we concluded that the correct valid name of this species is Andricus malpighii (Adler, 1881), sexual form and A. malpighii (= nudus Adler, 1881), asexual form, because the specific name has been maintained by a catalogue mistake and so, do not justify the election of the species name. This species has been mentioned from many European countries from Portugal to Ukraine (Dalla Torre and Kieffer 1910, Tavares 1919, Hoffmeyer 1925, Ionescu 1957, Pfützenreiter and Weidner 1958, Weidner 1960, Eady and Quinlan 1963, Ambrus 1974, Wiebes-Rijks 1979, Nieves-Aldrey 1988, Melika and Csóka 1993, Diakontshuk and Melika 1994, Pujade-Villar 1997, and many others). The sexual generation produce small catkin galls in spring. These galls are glabrous and differ from Andricus quadrilineatus (= kiefferi Pigeot) by the white sparse pubescence at the apical area below the apical tip. Galls of the asexual generation are similar to those of Andricus callidoma, A. amenti, and A. alniensis, however, A. malpighii asexual galls began to develop in September-October while the above-mentioned species develops during the summer.