A taxonomic revision of the genus Drassodex Murphy, 2007 (Araneae: Gnaphosidae)
Author
Hervé, Christophe
Author
Roberts, Michael J.
Author
Murphy, John A.
text
Zootaxa
2009
2171
1
28
journal article
10.5281/zenodo.189206
60cbb643-8df2-44b2-b799-b8b1fe7b61a2
1175-5326
189206
Drassodex heeri
(
Pavesi, 1873
)
Figs 10–15
Drassus heeri
Pavesi, 1873
: 126
, fig. 4–6 (male and females
syntypes
, presumably in Pavia,
Italia
, not located).
?
Drassus hispanus
Lebert, 1877
: 223
.
?
Drassus hypocrita
Bösenberg, 1902
: 291
, 292, 296, fig. 434.
Drassodes heeri
Lessert, 1905
: 186
, figs 1–3;
Lessert, 1910
: 50
, figs 41–43;
Simon, 1914
: 133
, 207, figs 219–222 (in part);
Reimoser, 1919
: 161
;
Roewer, 1954
: 386
;
Bonnet, 1956
: 1566
; Wiehle, 1967: 13, figs 48–53;?
Tyschchenko, 1971
: 95
;
Grimm, 1985
: 109
, figs 122, 130–131 (in part);
Heimer & Nentwig, 1991
: 418
, fig. 1104;
Canard, 2005
: 190
.
Drassodex heeri
Platnick, 2008
.
Remarks.
We did not have the opportunity to examine the
syntype
specimens of
D. heeri
described and illustrated by
Pavesi (1873)
from Ticino (
Switzerland
). Examination of numerous specimens collected from several parts of the Alps allow us to consider the presence of at least three, perhaps four (see Remarks under
D. drescoi
sp. nov.
), very similar morphospecies, which can agree at first sight with the illustrations of Pavesi (see also figures of
D. drescoi
sp. nov.
,
D.
aff.
drescoi
and
D. simoni
sp. nov.
). One of these morphospecies, represented by the specimens collected in Allgäu (illustrated by Wiehle 1967) and in Graubünden Canton, corresponds better with the descriptions and illustrations of Pavesi. We decide here that these specimens belong to
D. heeri sensu
Pavesi.
Material examined.
SWITZERLAND
. No specific locality:
1 Ƥ, Nicholson, O. P.-Cambridge collection (
HECO
B. 236); 1 Ƥ, 1899, R. J. Pickard-Cambridge, O. P.-Cambridge collection (
HECO
B. 236); 1 Ƥ and 1 immature 3, 1906, R. J. Pickard-Cambridge, O. P.-Cambridge collection (
HECO
B. 236).
Graubünden Canton
:
1 Ƥ, 1907, R. Lessert, Simon collection n° 23822 (
MNHN
AR
9166).
AUSTRIA
.
Tyrol
:
Sölden, 1 Ƥ, A. W. Pickard-Cambridge, O. P.-Cambridge collection (
HECO
B. 235).
GERMANY
.
Allgäu
:
2 Ƥ and
1 3,
2000
–2100 m,
Aug. 11–13, 1965
, Harms, det. Wiehle (
SMF
22517/13).
Diagnosis.
D. heeri
can be associated with
D. drescoi
sp. nov.
and
D. simoni
sp. nov.
in a complex of species characterised by the presence of 3 or 4 retrolateral spines on tibiae IV, a large embolar coil looped around twice and spiralling upwards along only one axis (
Figs 12
,
22, 26
), and a spiral-column shaped coiled duct, following internal contour of the membranous coil (
Figs 11, 15, 17, 19
,
21, 25
). However,
D. heeri
can be distinguished from these by the shape of the RTA, almost symmetric, with an inferior prong greatly sharpened and as long as the superior prong (
Fig. 13
), the blunt tip of the embolar coil (
Figs 12–13
), and the distal part of the membranous coils, extending and projecting forwards (
Figs 11, 15
).
Description.
Male dimensions (SMF 22517/13): total length 9.72. Carapace 4.43 long, 3.14 wide. Leg I: femur 3.81, patella 2.06, tibia 3.52, metatarsus 2.97, tarsus 1.92, total 14.28. Leg II: femur 3.57, patella 1.83, tibia 2.84, metatarsus 2.65, tarsus 1.74, total 12.63. Leg III: femur 3.29, patella 1.65, tibia 2.48, metatarsus 2.51, tarsus 1.66, total 11.59. Leg IV: femur 4.19, patella 1.84, tibia 3.52, metatarsus 3.85, tarsus 1.92, total 15.32. Leg spination: femora: I, II d1-1-0; III r0-1(0)-1; IV p0-0-1; tibiae: I
v1
p(0)-2-0; II v0-2-0; III p1-1(1- 1-1),
v2-2
-2, r1-1-1(1-1); IV
v2-2
(1p)-2, r1-1-1-1; metatarsi: III
v2-1
p(2)-2, r1-2-2; IV
v2-2
-2. RTA bifid, superior prong short and strongly curved; inferior prong sharp and as long as superior branch, both almost symmetric (
Fig. 13
); median apophysis pointing inwards; embolar coil looped almost twice, spiralling upwards along one axis, without terminal apophysis and blunt at its tip (
Figs 12–13
).
Female dimensions (SMF 22517/13): total length 10.45–11.36. Carapace 4.95–5.14 long, 3.81–3.86 wide. Leg I: femur 3.95–4.03, patella 2.24–2.27, tibia 3.29–3.29, metatarsus 3.03–3.19, tarsus 1.84–1.90, total 14.46–14.57. Leg II: femur 3.74–3.76, patella 2.14–2.22, tibia 2.93–3.02, metatarsus 2.79–2.79, tarsus 1.74–1.79, total 13.45–13.47. Leg III: femur 3.50–3.50, patella 1.86–2.00, tibia 2.64–2.65, metatarsus 2.72–2.72, tarsus 1.67–1.74, total 12.46–12.54. Leg IV: femur 4.50–4.55, patella 2.06–2.15, tibia 3.86–3.87, metatarsus 3.99–4.07, tarsus 1.99–2.06, total 16.48–16.62. Leg spination: femora: I, II d1-1-0; III r0-1-1; IV p0-0-1; tibiae: II
v1
p(0)-2-0; III
v2-2
-2, r1-1-1(1-1); IV r1-1-1-1; metatarsi: III
v2-1
p(0)-2, r1-2-2; IV
v2-2
-2, r1(2)-2-2. Atrium, subtriangular, wider than high (0.37–0.49 wide, 0.32–0.36 high, ratio 1.09–1.38), anterior tongue rectangular and projecting posteriorly (
Figs 10, 14
); copulatory openings narrow, not easily visible in ventral view, clearly separated; membranous coils looped more than twice, with internal contour followed by spiral-column shaped coiled ducts (
Figs 11, 15
).
FIGURES 10–19.
10–15
Drassodex heeri
(Pavesi, 1873)
(10–13 SMF 22517/3; 14–15 MNHN AR 9166). 10–11, 14–15 epigyne (10, 14 ventral view; 11, 15 dorsal view); 12–13 left male palp (12 ventral view, 13 retrolateral view). 16–17
Drassodex simoni
sp. nov.
(MNHN ARM 034a, holotype). 16–17 epigyne (16 ventral view, 17 dorsal view). 18–19
Drassodex
aff.
drescoi
(MNHN AR 9167). 18–19 epigyne (18 ventral view, 19 dorsal view). (A = atrium; AA = anterior arch; B = bursa; CD = coiled duct; CO = copulatory opening; EC = embolar coil; FLS = flattened lanceolate structure; IP = inferior prong of the RTA; MA = median apophysis; MC = membranous coil; S = socket; SP = superior prong of the RTA).
Distribution.
Central Alps.