Full-text - Norsk entomologisk forening

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438 Tore NielsenSubstrate during sunning: On warm days the species can beseen sunning itself on larger leaves of lower vegetation. E.g. 3specimens were caught on leaves of Menyanthes trifoliata onBratteb~ bog on July 8th 1965.Frequency: Not rare, but tied to humid biotopes. - D e n-m a r k : Lundbeck (1916) finds it rare. Torp Pedersen (1964)writes that he has caught the species at Munkesg, Ribe, on May8th 1964 (18 specimens). - G r e a t B r i t a i n : "Uncommon,in marshy localities" (Coe 1953).Distinguishing characteristics: See under H. lineatus.Distribution: "Europa, Asia sept. et orient., America sept."(Sack 1932). - Northern and middle Europe, towards the northto southern Sweden and in Finland. Rare everywhere (Lundbeck1916).SummaryA total of 917 specimens of Helophilus species were collectedon Jzren, Rogaland county in south-western Norway, mainlyduring the period 1963-65. 7 species were found: Helophilustrivittatus Fabr. (38 specimens), h. pendulus I,. (616 specimens),H. hybridus Loew (98 specimens), H. affinis Wahlb. (8 specimens),H. consimilis Malm (52 specimens), H. lineatus Fabr. (71 specimens)and H. lunulatus Meig. (34 specimens).H. pendulus is common and widely spread throughout thewhole area. The other species were found less numerous and H.trivittatus, H. hybridus, H. consimilis, H. lineatus and H. lunulatusare new to the Norwegian fauna.The position of the investigated area and the occurrence ofthe species are shown on Fig. 1. Fig. 2 is indicating the specificflight periods. As seen from this figure, most of the species canbe caught during a great part of the summer, but one species(H. consimilis) seems to have a more limited flight period.There is a choice of biotopes; the species have been found ingreatest numbers on humid bogs and along borders of lakes andpools, with flowering Comarum palustre L. Thus most of thespecies seem to be hygrofile, while H. pendulus is the most pronouncedmesofjle form.Some remarks about the activity and behaviour of the insectsare included. A periodicity can be traced, and during a periodof sunning in the morning and in the afternoon, defence of territoriesoccurs frequently between the specimens.ReferencesCOE, R. L. 1953. Diptera, Syrphidae. - Handbooks for the identificationof British insects. Val. X, part 1. Royal Ent. Soc. of London.(98 P.).
LUKDBECK, W. 1916. Diptera Danica. Part V. Lonchopteridae, Syrphidae.Copenhagen. (603 p.) .SACK, P. 1932. 31. Syrphidae. E. Lindner: Die Fliegen der palaearktischenRegion. Stuttgart. (451 p.)SOOT-RYEN, T. 1943. 4 review of the literature on Norwegian Dipterauntil the year 1940. - Tromser Museums iirshefter, Naturhistoriskavd. nr. 31. Vol. 65 (1942), nr. 3. Tromsca. (46 p.)TORP PEDERSEN, E. 1964. Syrphidefaunaen i Aulum sogn i Vestjylland.((Flora og Faunacc 70 : 101 -128.
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Page 6 and 7: HymenopteraLDKEN. A .: A nest of Ve
Page 8 and 9: 398 Torgeir EdlandEggs for hatching
Page 10 and 11: 400 Torgeir EdlandTable I shows fem
Page 12 and 13: Torgeir EdlandNO. OFOBSERVATIONSTIM
Page 14 and 15: 404 Torgeir Edlnnd19630 1964.&000 0
Page 16 and 17: 406 Torgeir EdlandSCHBYEN, T. H. 19
Page 18 and 19: ~ber Conosoma testaceum F. und zwei
Page 20 and 21: 410 Andreas StrandSahlberg (1911) h
Page 22 and 23: Ein iiberraschendes Vorkommen vonCe
Page 24 and 25: Andreas StrandFig. 2. Nordeuropaisc
Page 26 and 27: 416 Andreas Strandhieraciifolium an
Page 28 and 29: 418 John 0. SolenzFig. 1. Records o
Page 30 and 31: Mortality of winter eggs of Metatet
Page 32 and 33: 422 Lauritz SammeResultsDaily maxim
Page 34 and 35: Nye finnesteder av NoctuoideaC F. L
Page 36 and 37: Tore Nielse.~Fig. 2. The head of th
Page 38 and 39: Tore NielsenFig. 1. Map of localiti
Page 40 and 41: 430 Tore NielsenThe first hours aft
Page 42 and 43: Tore NielsenH. consimilis: June 2ls
Page 44 and 45: Tore NielsenFig. 3. Helophilus triv
Page 46 and 47: 436 Tore Nielsenfiendulus, like mos
Page 50 and 51: The larval stages of the genus Bemb
Page 52 and 53: 442 Johan Andersentral side of the
Page 54 and 55: 444 Johan Andersenlong as broad (i
Page 56 and 57: 44 6 Johan AndersenB. lapponic~lnzM
Page 58 and 59: The lavval stages of BemhidionFigs.
Page 60 and 61: The larval stages of Bembidion 449F
Page 62 and 63: The larval stages of Bembidion 451F
Page 64 and 65: The larval stages of Bembidion 453s
Page 66 and 67: Koleopterologishe notiser 455f.eks.
Page 68 and 69: BokanmeldelserP a 1 m, T h u r e. 1
Page 70: informative iallfall for norske dyr

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