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number ofsegments ofthe antennal flagellumis only five (rarely six according to Freeman& Lane, 1985) compared to seven or more inmost other Bibio species. This makes it fairlyeasy to distinguish B. nigriventris from otherNorwegian Bibio species. The body is blackin both sexes. The coxae of the male and thefemora are black, at least the last pair oftibiaare reddish brown. The legs ofthe females aremore brighter reddish-yellow. The frontwing-ribs are dark in both sexes. The last partof the male wings including the ribs is milkywhite, all wingsribs in the last part of thefemale wing, however, is dark and contrasting.The stigma of the male wing is not verydistinct, and only touching the margin of thewingfront in a smaller part. The stigma isdistinct in the female wing. B. nigriventrislarvae may damage roots of larch.EiFig. I. The distribution of Bibio nigriventris Halidayin Norway. Closed circles represent materialseen by the author. Open circle represents publishedrecord, material not seen by the author.ditional Bibionidae material hall been collectedin the last ten years by other methods likelighttraps, Malaisetraps, pitfalltraps and watertraps(yellow trays). Some of the trapshave been collecting all through the summerseason.Morphological charactersB. nigriventris has a body length 6--8 mmand is thus a middle sized Bibio species. TheEarlier records of B. nigriventris0, Halden: Hvaler (Strand, E. 1913). Thismaterial is today not present in Norwegiancollections. Siebke (1877) records B. nigriventris,1
ker 1 ~ 27 June 1873 (ZMO 11293). Probablymaterial published by Siebke (1877) as B.johannis (L.).New records of B. nigriventrisAK, Frogn: Hli0ya. Malaisetrap A 5 ~~ ,Malaisetrap B 1 ~ 2 ~~ . B0, Hurum:Holmsbu 1 ~, Tofte 52 ~~ 27 ~~. BV, Hol:Geilo 1 ~ . YE, Tj0me: Kjrere 1 ~ ,Mostranda2 ~~ 4 ~~. AAY, Arendal: HasseUsen 4 ~~. VAY, Flekkefjord: Hidra, Drag0Y 1 ~ ;S0gne: S0gne Folkeh0gskole 1 ~ . RY, KArst0:Storavann 1 ~,Arvik 1 ~. HOY, Bergen:Bergen I ~ 1 ~ , Sandviken 1 ~ 2 ~~, Hellenesset1 ~ 1 ~ , (Asane) Vollane 1 ~ 2 ~~,(Asane) Golfbanen 1 ~ 4 ~~ ,(Fana) Stavollen1 ~ , (Fana) Stend 2 ~O' 3 ~~ , (Fana)Flesland 1 ~ ; Samnanger: Adland 1 ~ ; Os:R0ykenesvann 1 ~ 2 ~~; Sund: Srele 2 ~~ 2~~ ; Ask0Y: Hestetreet 3 ~~ 1 ~ ; Oster0Y:Herland 2 ~~, SkaftA 3 ~~ 2 ~~; 0ygarden:BlomvAg 1 ~ I ~ . HOI, Etne: Austrheim 10~~ , Brenneland 1 ~ ; Kvinnherad: Berget I~, Guddalsdal 2 ~~ , Rosendal, Baroniet 2~ ~ 1 ~ , Rosendal, near church, I ~ ,Skeie 1~ , Skeiehavn 1 ~ , Uskedall ~, Varalds0Y,Djuvsland, Knarrevikshei 1 ~ ; Ullensvang:Dj0nno 1 ~ , Ring0Y 1 ~ ; Eidsfjord: Hj01modalen 1 ~ , 0vre Eidfjord I ~ 1 ~ ; Ulvik:Granvin 1 ~ 2 ~~ ,Granvin, Seim 3 ~~ I ~ ;Voss: 4 km east of Mj0lfjell 5 ~~ 15 ~~ ;Kvam: Bjerke 3 ~~ 1 ~, T0rrviksbygd, Bergsliane1 ~ . SFY, Gulen: Brekke 1 ~ , IndreTakle 1 ~ . SFI, Lrerdal: Eggum I ~ ,Kvamme 1 ~ . STI, Trondheim: Lade 1 ~ ;Oppdal: Kongsvoll 1 ~ 5 ~~ , Kongsvoll,Raubekken 1 ~ (The Museum, Univ. Trondheim);Klrebu: MAlsj0en 1 ~ (The MuseumUniv. Trondheim): NTI, Steinkjer: Steinkjer1 ~ . NSY, Bod0: Bod0 I ~ 1 ~ , Falkflaugvann3 ~~ 1 ~ ,Falkflaug, upper Falkflaug 8~~ 3 ~~ (two partly damaged Bibio malesprobably also belong here), Urskar, Kronli 3~~ 1 ~,Urskar, Skuti 4 ~~, Valnes, Sjagand5 ~~ 6 ~~ ; GildeskAI: Oterstranda 9 ~~ 6~~ . NSI, Hemnes: Sklirelvdal 2 ~~ (RanaMuseum 2350); Rana: Kvandalen VP 43572~~ (Rana Museum 2983), Kvandalen VP4356 I ~ (Rana Museum 2980), KvandalenVP 4257 2 ~~ (Rana Museum 2969, 2857),Straumbygd 1 ~ (Rana Museum 2983); Beiam:KvAI 1 ~ 1 ~ , Solh0Y 1 ~ ; Saltdal:Rognan 4 ~~ 1 ~ . NN0, Hamar0Y: Fjelltunat Krakmo 1 ~ . TRY, Troms0: Troms0ya 1~ ; Kvrefjord: Borkenes 1 ~ ,Straumsbotn 2~~ 2 ~~. TRI, Bardu: Setermoen 2 ~~ 1 ~.DISCUSSIONThe distribution ofB. nigriventris in Norwayis shown in Fig. 1, and plotted in EIS squares.B. nigriventris is commonly distributed in thelowlands north to Troms province. Pecina(1965) reported B. nigriventris from alpineareas in Middle-Europe, but did not statehow high up into the mountains the specimenswere collected. In Norwegian mountainsB. nigriventris is however, not recordedin the alpine zone (above the tree line), and itis not common in subalpine areas either. Thelocality having the highest elevation is Raubekken,Kongsvoll, South-Tr0ndelag provincewhere one female was taken in a Malaise-trapat 900 m a.s.l. Solem (1985) describedthis site as sub-alpine zone with birchforest. The surroundings of Kongsvoll in theDovrefjell mountains, South Norway, hasthrough several years been surveyed throughoutthe month June to Octover, and a numberof Malaise-traps were used in the middle-,low- and the subalpine zones, but only thisone female was collected. The Bibionidaefauna ofthe Dovrefjell mountains were describedby Greve et al. (1984). Neither was B.nigriventris represented in the IBP collectionsfrom the middle and low alpine zones atHardangervidda.Similar sites to the one in the subalpinezone where B. nigriventris was collected atKongsvoll are one at Geilo at approximately700 m a.s.l., and another at Mj0lfjell at 670 ma.s.l. where B. nigriventris was collected inMalaise-traps during the summers 1985 and1986. These data indicate that B. nigriventrisoccurs in the subalpine zone, but is scarcehere. Other sites where B. nigriventris hasbeen collected are mostly far below theselevels.Pecina (1965) described B. nigriventris asan eurytopical and forest species. This descriptionfits well with the data from Norway,where most specimens have been collected inthe vicinity of or in decidious or mixed forests.Since sweep nets are not the best collectingmethod in forest habitats this maypartly explain why a common species like B.nigriven'ris is scarce in older collections. TheNorwegian material shows that outside forests,B. nigriventris may occur in herbage,gardens, and sometimes in meadows. Pecina(1965) also mentioned habitats similar tothese, and remarks also that in contrast toother Bibio species which swarm in greatnumbers, B. nigriventris often occur in low33
Page 1 and 2: No. 11987SER. B VOL. 34NO. 1Norwegi
Page 3 and 4: Professor Ole A. Srether 50 yearsFo
Page 5 and 6: senting and systemising these chara
Page 7 and 8: Raddum, G. & O. A. Sa:ther 1981. Ch
Page 9 and 10: Contribution to the knowledge of th
Page 11: dia is the type locality, Livonia,
Page 14 and 15: Sverre Kobro, Carl Fredrik Liihr, R
Page 16 and 17: -.Occurrence and life cycle of Dino
Page 18 and 19: width of 1 2 3 4pronotum n: 19 13 I
Page 20 and 21: LITTERAT.UREAubert, J. 1946. Les Pl
Page 22 and 23: Fig. 1. Brachycaudus (Acaudus) popu
Page 24: Nymphal development and food consum
Page 27 and 28: espectively. At 20°C, mean number
Page 29 and 30: than P. mali. Upon examination of t
Page 31 and 32: The first record of Thaumalea ve"al
Page 33: Bibio nigriventris Haliday, 1833 (D
Page 37 and 38: Megamerina dolium (Fabricius, 1805)
Page 39 and 40: New Norwegian Empididae (s.str.) (D
Page 41 and 42: A,H. obscura MeigenRY, Rennes0Y: F0
Page 43 and 44: Influence of temperature on the egg
Page 45 and 46: · soo8 12 16 20 24Fig. 2. Day-degr
Page 47: Distribution and seasonal abundance
Page 50 and 51: Table 2. Percentage composition of
Page 52 and 53: ut from a zoogeographical point of
Page 55 and 56: Table I. Tipulidae species recorded
Page 57 and 58: area, Torne Lappmark (Tjeder 1978).
Page 59 and 60: Twelve species of Neuropteroidea an
Page 61 and 62: Table I. Number of specimens (males
Page 63 and 64: etween summer and autumn. H. stigma
Page 65: Distribution and seasonal abundance
Page 68 and 69: Table I. Number of individuals of v
Page 70 and 71: ,[Table 3. Relative abundance of th
Page 72 and 73: ,(Table 6. Number ofspecies collect
Page 74 and 75: there. This is a northern species,
Page 76 and 77: denticulata, Onychiurus armatus (Tu
Page 78 and 79: Kallvellsj0enStroplsj0enKongsvoll B
Page 80 and 81: Faro. PsilidaeMaterial of Psilidae
Page 82 and 83: The thrips fauna near Kongsvoll in
Page 84 and 85:
Table 1. Habitat/host plants for th
Page 86 and 87:
Table 1, continuesAltitude StageThr
Page 88 and 89:
Sericothrips abnormis (Karny, 1909)
Page 90:
collected from birch in Oslo, in Tr
Page 93 and 94:
Maltbrek, J. 1932. Frynsevinger. Da
Page 95 and 96:
--_..- ---~---'Aug. 1977, a male Ap
Page 97 and 98:
zur Kenntnis der Thermopilie bei Sp
Page 99 and 100:
._- ... _._---------------------
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