Notes on Mediterranean Theridiidae (Araneae) – II
Author
Knoflach, Barbara
University of Innsbruck, Innsbruck ,, Austria
Author
Rollard, Christine
Museum national d'Histoire naturelle, Paris ,, France
Author
Thaler, Konrad
Institute of Ecology, University of Innsbruck ,, France
text
ZooKeys
2009
2009-07-29
16
16
227
264
journal article
10.3897/zookeys.16.237
6183f557-d88b-466e-81ea-549149b529cb
1313–2970
576484
Theridion semitinctum
Simon, 1914
Figs 68
,
76-77
Material
examined.
Spain
:
El Pardal
(CM),
3 ♀
(
MHNP
AR 2298
)
.
Italy
:
Lombardia
,
Lake Lugano
,
Porlezza
,
1 ♀
(CTh),
30.6.1962
(
Thaler 1966
, Abb. 2d, sub
Theridion
sp.)
.
Description
, identification.
This species has not been reported since the description of
Simon (1914: 270
, 297). A more detailed redescription including that of the unknown male is planned in comparison with the other members of the
Theridion melanurum
group (Knoflach, in preparation). For comparative analysis and illustration of females see
Thaler (1966)
.
Measurements
.
One female from El Pardal: Total length 3.2, carapace length 1.2, width 1.1, length femur I 1.8, tibia I
1.5 mm
.
Somatic
features, colouration.
The species is clearly a representative of the
Theridion melanurum
-group (
Thaler 1966
) and shares its general appearance, colour pattern and overall conformation of genital organs with
Theridion betteni
,
T. melanurum
,
T. mystaceum
, etc. Abdomen with clear folium.
Figures 76-77.
Theridion semitinctum
Simon
from
Spain
, El Pardal (MHNP AR 2298). Epigynum/ vulva, ventral (
76
), dorsal view (
77
), drawn at same scale. Scale line:
0.20 mm
.
Epigynum
/vulva
(
Figs 68
,
76-77
). Epigynal cavity a little longer than wide, scarcely sclerotised. Copulatory orifices about
0.1 mm
apart, situated at posterior inner side of cavity. Copulatory ducts extensively coiled with large overlap of coils. Receptacula seminis globular.
Distribution
.
Simon (1914)
reported
Theridion semitinctum
from
France
(Provence),
Spain
, and the
Balearic islands
(
Simon 1914
). A further record came from northern
Italy
(
Thaler 1966
sub
Theridion
sp.). The species has probably been confused with
T. mystaceum
.