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242 A. Lillehammer Fig. 53. Distribution of Capnia vidua Klapalek. • Records from Sweden and Finland. Fig. 55. Distribution of Leuctra digitata Kempny. ,( ~: . .~~~ er Fig. 54. Distribution of Capnopsis schilleri Fig. 56. Distribution of Leuctra fusca (Linnaeus). (Rostock) • The northernmost record in Finland.
Norwegian stoneflies II 243 Tobias (1974). In southern Norway the species is common and numerous both in the coastal areas in the west and in the Sub Alpine belts in the mountains. It has been taken in small and large streams, in rivers and lakes. Leuctra fusca may be one of the dominating species both in rivers such as Suldalslagen and in small streams such as Leirelva. The highest locality is at 1100 m a.s.l. in 0vre Heimdalen. The species has been taken both in southern and northern Sweden (Brinck 1949). Leuctra hippopus is probably the most common Norwegian stonefly species, and occurs all over Norway (Fig. 57). It often dominates the stonefly fauna, especially where Capniids are absent. It has been taken in the coastal areas of the south-west and the south and it is also common in the Sub-Alpine vegetation belt in the mountains. The Low-Alpine belt at heights of 1100 m a.s.l. is its limit. The species is common and numerous in small and large streams and rivers and has been taken on different substrata. It also occurs in lakes. It is as common in northern Norway as in the south. The species has been taken both in northern and southern Sweden (Brinck 1949). Leuctra nigra is found in both southern and northern Norway (Fig. 58), but not in the coastal areas of the south-west. The species is most common in small streams, but also occurs in large streams. Leuctra nigra is the species in the genus Leuctra which usually goes highest up the mountains. It is common in the Sub-Alpine vegetation belt and the highest locality is at about 1200 m and in the Low-Alpine belt of 0vre Heimdal. The species has been taken both in northern and southern Sweden and is, according to Brinck (1949), a characteristic inhabitant of small ~tony streams. Discussion Several species have shown great differences in habitat preference and some of the most pronounced differences will be discussed below. Leuctra fusca has been said to prefer large rivers (Ulfstrand 1968), but in southern Norway this is not the case and Leuctra fusca is a common inhabitant of both small and large Fig. 57. Distribution of Leuctra hippopus Kernpny. Fig. 58. Distribution of Leuctra nigra (Olivier).
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Norsk Entorriologisk Tidsskrift Nor
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451 1 I I I I I I I 4 6 8 10 12 14
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Dry Weight , mg. Fig. 7. Correlatio
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Table 11. Caloric values per g dry
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Talbe IV. Oxygen consumption given
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etween the sexes during the respira
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128 A. Fjellberg Fig. 2. A. sefiten
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130 A. Fjellberg HABITATS Until now
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132 L. Semme the autumn. The prelim
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'~0~1-0611 '96 'lourouy 'uu3 's3asu
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136 J. E. Brittain Fig. 1. The loca
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138 J. E. Brittain period was longe
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140 J. E. Brittain Table 11. Ph~sic
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142 J. E. Brittain Table IV. Physic
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144 J. E. Brittain EPHEMEROPTERA Am
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146 J. E. Brittain 0-3 NYMPHS I I 1
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148 J. E. Brittain 1-3 NYMPHS 01 I
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150 J. E. Brittain Nemzlrella picte
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152 J. E. Brittain ture and the inc
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(Nord-Norwegen) (Trichoptera, Pleco
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from anoxia. Drops of haemolymph we
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Notes on little known spiders in No
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Symphyla and Pauropoda from two con
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Symphyla and Pauropoda 163 Table 11
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sults it is clear that the animals
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168 7. R. Nielsen K L M N Fig. l. O
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170 T. R. Nielsen Table 1. A compar
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Abundance and diversity in the faun
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Nocturnal moths 175 Table 1. Number
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Nocturnal moths 177 Grimstad Amli 1
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Nocturnal moths 179 Am/i. Norway 19
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Nocturnal moths 181 Grimstad, Norwa
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Nocturnal moths 183 %60 50 40 30 20
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Spinosellina forms of Sminthurides
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A constant pressure microrespiromet
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Microrespirometer 189 termination o
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Page 80 and 81: 194 F. E. Klausen REFERENCES Ardii,
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