S. Mahunka szerk.: Folia Entomologica Hungarica 56. (Budapest, 1995)

SYMPHYTA* In Hungary, disregarding the parasitoid orussids, the sawflies or Symphyta are phytophagous both in their larval and imaginai semaphoront life. Surprisingly, the sawflies' foodplants extend over a long series of herbaceous (and arboraceous) plants, however, oak trees (Quercus species) are conspicuously avoided although they are living in a relatively high species number in oak forest, too, like in Síkfőkút. The fourteen sawfly species, i.e. the overwhelming number of the species, trapped in the oak forest were represented by a single individual each and only two species, Apethymus abdominalis and Athalia rosae, reached higher specimen numbers (see Table 1). The fourteen species may thus be regarded unsuitable for further consideration. This unsuitability is well expressed also by the phenology of the sawflies (Fig. 1). Almost in each decade one or two species were caught except the second decade in June and first decade in October when four and six species were trapped, respectively. In the latter decade (1-10 October) Apethymus abdominalis and Xiphydria longicollis increased to the maximum number (5 and 1 specimens, respectively) of the species in the traps. Subsequently the two indicated sawfly species are analysed. Athalia rosae is common in Hungary and occurs in open vegetation. Also in Síkfőkút it was trapped only in the meadow (outside the forest) a total of six specimens (5 Ç ). Its cruciferous foodplants like Armoracia, Barbarea, Rorippa, Sinapis, Sisymbrium, Tropaeolum species (Zombori 1982: 52) are found also in the smaller or larger meadows of oak forests. The flying period of this species extends from April till September and annually several generations may be on the wing (Zombori I.e.) in Síkfőkút, however, the six specimens were trapped on one day, viz. 28th September (see Table 1, too). Surely, more specimens of the population in Síkfőkút had been on the wing and the flight must have lasted over a longer period, this actual dispersion and flight were not reflected by the trapping. Apethymus abdominalis is the only sawfly species in Síkfőkút which was trapped in all three vegetation layers, i.e. above the canopy, in the canopy and in the meadow along Table 3. Height and time of collecting data of the Chrysidoidea species in 1987 Species of Chrysidoidea Quercetum petraeae-cerris 25-21 m 12-14 m 0-3 m Festucion 0-1 m Chrysis cyanea (Linnaeus, 1758) 06.16: 1 6 08.30: 1 ? Chrysis ignita Linnaeus, 1761 07.16: 1 ó Total number of species: 2 Total number of specimens: 3 Number of species taken only in one layer: 2 * On our request Dr. L. Zombori, Symphyta specialist (Hungarian Natural History Museum, Budapest) was kind enough to identify the sixteen species as well as to prepare the most important capturing notes. His taxonomic work is highly appreciated by us and essentially promoted our present account.