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

Síkfőkút forest. The traps captured the specimens above the canopy on 23 August ( 1 d) and 18 September (2 66 ), in the canopy 8 October (Id) and in the meadow 1-10 October (4 66) (see Table 1, too). Though female was not caught the species seems a frequent and permanent inhabitant of the Síkfőkút oak forest. ACULEATA SCOLIOIDEA From among the five scolioid species Tiphia minuta occurred only in three layers: 1 Ç (taken in June) in the canopy, 3 Ç (taken in June) in the shrub + herb layer and also 3 (taken in May 1 Ç and in July 2 ) in the meadow (Table 2). The species is frequent in Hungary and as larval semaphoront a well known parasitoid of the Anisoplia and Rhizotrogus species; the imago prefers to lick the nectar of umbelliferous flowers which the tiphiid wasp can find rather in the meadow and less so in the forest in a great quantity. Its melolonthine larval hosts are living in the soil gnawing the roots of the (young) bushes and trees. Hence the occurrence of its hosts in the forest soil explains the relative high number of the tiphiid wasp taken with the Malaise traps. CHRYSIDOIDEA The few species as well as specimen numbers (2 and 3, respectively) of the chrysidid wasps do not allow an interpretation of their dispersion and phenology in the oak forest of Síkfőkút. It is well known in general that they are parasitoids of bee (Apoidea) larvae nesting in earth burrows, cavities and crevices in stems etc. There is a good reason to presume that the chrysidids are living in Síkfőkút in a much greater number (both in species and specimens) than it is shown by the catch of the Malaise traps (see Table 3). POMPILOIDEA Faunistically it is somewhat an unexpected result that one species, Dipogon monticolus Wahis, 1972, taken in Síkfőkút (Noszvaj), proved to be new for the Hungarian fauna increasing the total number of the pompilid species in Hungary to 113. From among the fourteen pompilid species (see Table 4) only Dipogon subintermedius was captured in a strikingly high number, i.e. in 43 specimens or 20 + 23 66 (63.23% of the total number, i.e. 68, of the pompiloid specimens). The rest of the species was represented by 1 to 3 specimens except two species, Auplopus carbonarius and Dipogon monticolus, reaching individual numbers 6 (4 + 2 66 ) and 7 (7 66 ), respectively. During the vegetation period of 1987 one to four pompiloid species fell into the traps and twice maxima were observed: nine and six species in the second and third decades in June and ten and nine species also in the second and third decades in September (Fig. 2). This flying phenology shows, supposedly, more or less the true activity of the pompiloid wasps in the Síkfőkút oak forest.