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

Considering the temporal course of the trapping of Dipogon subintermedius in the four layers of the oak forest the species was fairly continuously captured in the shrub + herb layer (0-3 m) in June and August with an interruption in July and a few specimens were taken in May and September. The interruption in July indirectly indicates its two annual generations in spring and in the high-summer seasons. It was less continuously captured in the layers of canopy (12-14 m) and meadow (0-1 m) from the middle of April to the middle of September as well as from the end of May to the end of the first decade in October, respectively. Above the canopy (25-27 m) the species fell into the trap sporadically: one specimens each in June and August (Table 4). The relative constancy of the presence of Dipogon subintermedius in the shrub + herb layer seems to be confirmed by its bionomy. This pompilid is chasing and preying on spiders mainly of the genera Epiblema, Salticus and Segestria which occur in a great number in oak forests (L. Móczár 1956: 35, Oehlke & Wolf 1987: 340-341, Day 1988: 31). The pompilid species is rather thermophilous, this environmental requirement is more or less given in the oak forest. The second species, Auplopus carbonarius, has occurred in a significantly lower number than the previous species (see Table 4, too); a total of six specimens (4 + 2 dd ) were trapped shared among the three layers: above canopy (1 Ç + 1 d ), in the shrub + herb layer (1 ? + 1 d ) and in the meadow (2 $ ). A. carbonarius is an euryoecic-intermediary species living rather in open vegetations. Its brood is supplied with paralysed spiders coming from many genera (Agelena, Aphantaulax, Chiracanthium, Clubiona, Dendryhantes, Sitticus etc.) and adhering to the soil and low herbaceous biotopes. In Hungary the species is on the wing from May till October (L. Móczár 1956: 37), in Síkfőkút it was captured in June (1 d

), August (2 + 1 d) and September (2 ). VESPOIDEA The numerical proportion of the social wasp to the solitary wasp species is five to three; six species (3 social and 3 solitary ones) have been trapped in one to two individuals, hence their analysis would be unreasonable. Only two species, Vespula germanica and V. vulgaris, were gathered in a greater individual numbers permitting some limited considerations regarding their dispersion and phenology. All nine vespoid species are frequent to common in Hungary. Twelve specimens (4 + 8 ) of Vespula germanica were captured. The four females were caught above the canopy on the 9th October, this time reference indicates well that the females are still active in October searching covert for hibernation. Vespula vulgaris was taken in the greatest number, i.e. 16 specimens: 15 $$ and 1 d no female turned up contrarily to the previous species. The majority of the specimens of both species has been collected in September and October, V. vulgaris occurred also in June (2 ty§ ) and August (1 $ ). This phenological observation coincides with the old experience that the wasps are most frequent on the wing during late summer up to early autumn. The dispersion of the two species shows a rather similar figure. Both species have been trapped in the highest proportion in the meadow: V. germanica 6 (during the time interval 09.22-10.09) and V. vulgaris 9 (during the time interval 08.07-10.09). This dispersional observation indicates that the