Full-text - Norsk entomologisk forening

Spiders new to Norway
FINN ERIK KLAUSEN
Klausen, F. E. 1974. Spiders new to Norway. Norsk ent. Tidsskr. 21, 191-194.
Seven species of spiders new to Norway are recorded: Argenna subnigra (0. P.­
Cambr.), Zelotes electus (C. L. Koch), Clubiona similis L. Koch, Scotina celans
(Blw.), Attulus cinereus (Westr.), Attulus saltator (Sim.) and Tetrilus macrophthalmus
(Kulcz.). A short description of locality is given for each species.
Finn Erik Klausen, Zoological Museum, University of Bergen, N-5014 Bergen­
Univ., Norway.
During collecting in South and West Norway
in 1972 and 1973 I captured seven species of
spiders which are new to the fauna.
At least two of the species, Clubiona similis
L. Koch and Attulus cinereus (Westring),
are probably widespread and common in the
coastal sand dunes of the southern and southwestern
districts of Norway. As knowledge
of the Norwegian spider fauna is still poor,
little can be said of the remaining five species.
Three of them, though, are decidedly
rare, Zelotes electus (C. L. Koch), Scotina
celans (Blackwall) and T etrilus macrophthalmus
(Ku1czynski). For these I have given
a description of characters.
All measures are given in mm. Measurements
between eyes are taken between the
most distant point of opposite margins. Diameter
of an eye means the greatest diameter.
AM, AL, PM, PL: anterio median, anterio
lateral, posterio median and posterio lateral,
respectively.
Argenna subnigra (0. P. Cambridge 1861)
V: Moutmarka, Tjome (UTM: 32V NL
800490), 9 July 1973, 1 'j
The specimen was taken on a shore in the
upper littoral zone, composed of pebbles and
stones up to 15 cm in diam. Vegetation was
sparse, mostly Angelica archangelica and
short grass tussocks.
Zelotes electus (C. L. Koch 1839)
VAy: Hanangermona, Farsund (UTM: 32V
LK 662393), 1 July 1973, 1 'j
The specimen was caught on a heath near
several thickets of young Pinus silvestris. The
heath had a sparse covering of Calluna vulgaris
and Empetrum nigrum. The underlying
sandy soil lay fully exposed to the air, however
in some places covered by small patches
of Rhacomitrium sp.
Total length 4.3. Carapace: Length 1.70,
width 1.35. Yellow brown with a tint of red,
bordered with black and with some radiating
black or dark grey streaks. Blackened around
eyes. Chelicerae: Yellow brown, inner margins
with two teeth, outer with three. Sternum:
Yellow brown, faintly suffused with
grey, covered with black hairs. Abdomen:
Dark sooty grey or black covered with black
hairs. Legs: Femora yellow, blackened distally.
Patellae black, dorsal sides brown, tibiae
black with two brown parallel streaks running
along the dorsal side. Metatarsi and
tarsi yellow brown suffused with black. Tibiae