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Aim of presented work is to characterize and compare nesting biology and ecological requirements of five species of solitary wasps (Hymenoptera: Apoidea). Four species of family Sphecidae: Ammophila heydeni Dahlbom 1845, A. pubescens Curtis 1829, A. sabulosa (Linnaeus 1758), Sphex funerarius Gussakovskij 1934) and one representative of family Crabronidae (Bembix tarsata Latreile 1809) are treated here. Field observations were performed at spoil banks originated by coal mining by Most, Northwestern Bohemia. Obtained data bring exact parameters characterizing nesting habitats of studied species. Included are data on soil granulometry and penetrability, slope angle and vegetation cover. Significant difference between Ammophila species group and Bembix tarsata together with Shex funerarius was identified. Bembix tarsata and especially Sphex funerarius require softer soils and have broader valence in slope of nesting site sompared to Ammophila spp. Orientation of skew surface was almost south which has influence on microclimate of inhabited site microclimate. Biotic parameters such as cleptoparasite abundance were also tested. Three species of parasitic species Diptera: Sarcophagidae have been detected: Hilarella hilarella (Zettersedt, 1844), H. stictica (Meigen, 1824) a Metopia argyrocephala (Meigen, 1824)... |
