Fauna norv<strong>eg</strong>ica Ser. B Norw<strong>eg</strong>i<strong>an</strong> <strong>Jo</strong>urnal <strong>of</strong> Entomology <strong>Norsk</strong> Entomologisk Forenings tidsskrift Appears with one volume (two issues) <strong>an</strong>nually Utkommer med to hefter pr. if. Editor-in-Chief (Ansvarlig redaktor) Ole A. S
Carabidae <strong>an</strong>d Staphylinidae (Col.) in swede <strong>an</strong>d cauliflower fields in south-eastern Norway ARILD ANDERSEN Andersen. A. Carabidae <strong>an</strong>d Staphylinidae (Col.) in swede <strong>an</strong>d cauliflower fields in southeastern Norway. Fauna norv. Ser. B. 29, 49-61. During May-Oct. 1975 -81 about 20 000 carabids <strong>an</strong>d 48 000 staphylinids were caught in 12 swede <strong>an</strong>d cauliflower fields at Jel0Y (s<strong>an</strong>d <strong>an</strong>d gravel, moraine), As (clay) <strong>an</strong>d Ski (clayish moraine). Carabids were most numerous in May-June (spring breeders) <strong>an</strong>d Aug. (autumn breeders), while staphylinids were most numerous in May-July. The activity density for each species caught in each field is given, as well as the time for itS maximum activity. The three localities had a quite similar fauna, the S0rensen index <strong>of</strong> similarity for carabids being 44 for Jel0y-Ski, 62 for JeI0Y-As <strong>an</strong>d 86 for As-Ski. Among the 10 most numerous carabid species at each <strong>of</strong> the three localities, the following six were in common: Bembidion /ampros (Herbst), Ca/athus me/<strong>an</strong>ocepha/us (L.), Bembidion quadrimacu/atum (L.), Trechus quadristriatus (Schr<strong>an</strong>k), Harpa/us rufipes (D<strong>eg</strong>eer) <strong>an</strong>d Clivina fossor (L) The same holds for the following seven staphylinid species: A/oconota gr<strong>eg</strong>aria (Erichson), Amischa <strong>an</strong>alis (Gravenhorst>, A/eochara bipustu/ata (L.,), Atheta fungi (Gravenhorst>, Anoty/us rugosus (Fabricius), Tachyporus hypnorum (Fabricius) <strong>an</strong>d T. chrysomelinus (L) The eight most numerous carabid <strong>an</strong>d staphylinid species are discussed separately. Their seasonal ch<strong>an</strong>ges during May-Ocr.nlJer are given in histograms <strong>an</strong>d comments are given on their reproduction cyclus. Arild Andersen, Norw<strong>eg</strong>i<strong>an</strong> Pl<strong>an</strong>t Protection Institute, N-1432 As-NLH, Norway. INTRODUCfION The carabids <strong>of</strong> common Europe<strong>an</strong> crops have been quite thoroughly investigated (Thiele 1977). This is mainly due to their value as predators <strong>of</strong> several pest species. The staphylinids are less investigated, both because <strong>of</strong> their difficult taxonomy <strong>an</strong>d because tbeir import<strong>an</strong>ce as pre dators may be f90re doubtful (Geiler 1959/60, Pietraszko & Oercq 1978, Topp & Trittelvitz t980). The purpose <strong>of</strong> the present investigation was to collect information about the fauna <strong>of</strong> these beetles in some Norw<strong>eg</strong>i<strong>an</strong> fields as this was not previously done. It is part <strong>of</strong> a project evaluating the import<strong>an</strong>ce <strong>of</strong>the natural enemies <strong>of</strong>the tur nip root fly Delia floralis (Fallen), a serious pest in several cruciferous crops. Parts <strong>of</strong> the fields were treated with different insecticides. A discussion <strong>of</strong> the effects <strong>of</strong> the in t· secticide treatments on the beetles will, how ever, be given in a separate article. LOCALITIES The fields were located at Jel0Y (near Moss) in 0stfold county <strong>an</strong>d As <strong>an</strong>d Ski in Akershus county, all areas lying 25 - 50 km south <strong>of</strong> Oslo. The trapping was done atJel0Y in 1975 - 81 (except in 1977), at As in 1978- 81 <strong>an</strong>d at Ski in 1979-80. At Jel0Y the soil consisted <strong>of</strong> s<strong>an</strong>d <strong>an</strong>d gravel (moraine). This farm was situated close to the sea <strong>an</strong>d the experimental field was each year a 0.6 ha swede field surrounded by potatoes, barley, meadow, gravel roads <strong>an</strong>d mixed forests. Weeds were removed mech<strong>an</strong>ically <strong>an</strong>d by h<strong>an</strong>d in June, but some occurred in late sum mer, especially Stellaria media (L.) <strong>an</strong>d Chenopodium album L. The experimental fields, one each year, were situated in different parts <strong>of</strong> the farm, not more th<strong>an</strong> 500 meters apart, the pre vious crop being either barley or meadow (not treated with insecticides). From 1978 on, the area was irrigated. Most <strong>of</strong> the field was treated with gr<strong>an</strong>ules <strong>of</strong>either trichloronate, is<strong>of</strong>enphos or chlorfenvinphos at sowing in late May against root flies, but a small part <strong>of</strong>about 400 m2 each year was kept untreated. This farm by the ~ea had a yearly me<strong>an</strong> temperature <strong>of</strong> 6.8°C, .. 3° higher th<strong>an</strong> the other two localities, lying :tbout 10 km in from the sea. At As the soil consisted <strong>of</strong> clay. The experimental field was each year a 4 ha swede field 'urrounded by meadow, turnips, roads <strong>an</strong>d Fauna norv. Ser. B 29.. 49-61. Oslo 1982. 49
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C.r"5tl~ fubricosa Amplllpyrd "agop
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Table 6. Sex ratio and median day o
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Ematurga atomaria. Other species of
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Survey of the Pine Beauty Moth Pano
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Fig. 2. Trap model. (Copied from Bo
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the results indicate certain differ
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terestingly, the lepidopterous host
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Material: Raubekken 900 m I Q 17 Ju
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Chironomidae (Dipt.) from Ekse, Wes
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SYSTEMATIC LIST Podonominae Parochl
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Prodiamesinae Prodiamesa olivaeea (
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Edwards, F.W. 1922. Results of the
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In the species-list previously publ
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Kauri (966) mentions it from SFi: A
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0kland, F. 1939. En vesteuropeisk O
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Table I. Ecologicel notes.Meterial
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4.MEGABUNUS DIAOEMA 5. RIL.'IiHA TR
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IO.L.A&INIL6 EPHIPPIATla II.MITOPU6
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( Short communiCatiOns) THE FUNGIVO
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GUIDE TO AUTHORS. FAUNA NORVEGICA S
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