Redescription of Clubiona blesti Forster, 1979 (Araneae: Clubionidae) with a preliminary molecular phylogeny of New Zealand Clubiona
Author
Malumbres-Olarte, Jagoba
Author
Vink, Cor J.
text
Zootaxa
2012
3277
27
42
journal article
10.5281/zenodo.212922
61c2b34b-1ff5-49ce-b9fe-7a06a69db58e
1175-5326
212922
Clubiona blesti
Forster, 1979
Figs 1–3, 4a, 5–6, 7c–f
Clubiona blesti
Forster, 1979
: 78
, fig. 309 (description of female).
Type
material.
NEW
ZEALAND
: Fiordland:
holotype
female (not examined), Lyttles Flat, in wet tussock in bog,
17 February 1975
, A.D. Blest (Otago Museum).
FIGURE 2.
Clubiona blesti
. a male habitus (BLCO6), b female habitus (BLCO2).
FIGURE 3.
Clubiona blesti
, left pedipalp. c—conductor, e—embolus, rta—retrolateral tibial apophysis, sd—sperm duct, t—tegulum, ta—tegular apophysis. Scale bars = 0.5 mm.
Other material examined.
NEW
ZEALAND
: Otago Lakes:
Temple Peak
44º47.158’S
168º27.804’E
,
27 February 2003
, C.J. Vink,
1 female
(
LUNZ
00012640).
Mid Canterbury:
Ellangowan Scenic Reserve
43º47.9’S
173º01.6’E
,
12 December 2006
, J. Malumbres-Olarte,
1 female
(
LUNZ
00012641); same data except
20 February 2007
,
1 female
(
LUNZ
00012642).
Central Otago:
Te Papanui Conservation Park
45º40.8’S
169º45.3’E
,
2 March 2008
, J. Malumbres-Olarte,
1 male
(
LUNZ
00012648); same data,
1 female
(
LUNZ
00012646); same data except
21 December 2007
,
1 female
(
LUNZ
00012649); same data except
45º39.9’S
169º47’E
,
18 January 2008
,
1 female
(
LUNZ
00012643); same data except
20 February 2008
,
1 female
(
LUNZ
00012644); same data except
45º40’S
169º46.6’E
,
4 March 2008
,
1 female
(
LUNZ
00012645); same data except
14 December 2008
,
1 female
(
LUNZ
00012647).
Dunedin:
Swampy Spur
45°48.08’S
170°29.40’E
,
20 October 2011
, M. Wakelin,
1 female
(
LUNZ
00012709).
FIGURE 4.
Left pedipalps, retrolateral view. a
Clubiona blesti
; b
Clubiona cambridgei
; Travis Wetland (CMMC2); c
Clubiona cambridgei
, Lake Wairarapa
(CMWA2); d
Clubiona cambridgei
, Lake Wairarapa
(CMWA1).
Other locality records.
NEW
ZEALAND
: Nelson:
Lake Sylvester, Cobb,
1300 m
, tussock,
30 April 1969
, J.S. Dugdale (Otago Museum, not examined).
Diagnosis.
Clubiona blesti
is distinguished from other
New Zealand
Clubiona
species by an abdominal pattern that consists of only a medium band that extends along the entire length of the dorsal surface (
Fig. 2
). This band is either absent, partial or accompanied by lateral stripes in other
New Zealand
Clubiona
species (see
Forster 1979
: figs 286-296). Males can be identified by the apically notched retrolateral tibial apophysis, which is broader than in
C. cambridgei
(
Fig. 4
a-d and see
Forster 1979
: figs 299–300). Females can be recognised by the oval shape of the copulatory opening, which is constricted somewhat at the anterior end (
Figs 5
,
6
,
7
).
Description. Male (LUNZ00012648):
Carapace length 3.2, width 2.2, height 1.7; abdomen length 3.7, width 1.8; sternum length 1.7, width 1. AME 0.17, ALE 0.19, PME 0.13, PLE 0.15, AME-AME 0.09, AME-ALE 0.2, ALE-ALE 0.87, PME-PME 0.46, PME-PLE 0.33. Leg I 8.3 (2, 1.5, 2.3, 1.7, 0.8); leg II 8.2 (2.1, 1.5, 2.1, 1.7, 0.8); leg III 6.2(1.7, 1, 1.3, 1.6, 0.6), leg IV 8.7 (2.2, 1.3, 1.9, 2.5, 0.8).
Chelicerae with five promarginal teeth in a row and no retromarginal teeth.
Pedipalp as in diagnosis. Embolus arising from tegular apophysis, bent 90 degrees ventrally, extending almost to tegulum. Sperm duct with horizontal U-turn visible through tegulum. Tegular apophysis with nob-like projection (
Fig. 3
).
Colour in ethanol (
Fig. 2
a). Carapace and sternum yellowish-brown, darker in cephalic area. Abdomen pale grey-brown with dorsal dark-brown medium folium. Legs pale yellow-brown.
FIGURE 5.
Clubiona blesti
, epigynum, ventral, not cleared. cd—copulatory duct, co—copulatory opening, ea—epigynal atrium. Scale bar = 1.0 mm.
Female (LUNZ00012640):
Carapace length 3.9, width 2.9, height 1.8; abdomen length 5.8, width 3; sternum length 2.3, width 1.3. AME 0.2, ALE 0.23, PME 0.13, PLE 0.15, AME-AME 0.16, AME-ALE 0.25, ALE-ALE 1.09, PME-PME 0.63, PME-PLE 0.47. Leg I 9.4 (2.5, 1.7, 2.5, 1.8, 0.9); leg II 9.4 (9.4, 2.5, 1.7, 2.5, 1.8, 0.9); leg III 7.3 (2.1, 1.3, 1.6, 1.7, 0.6), leg IV 10.8 (2.9, 1.5, 2.6, 3, 0.8, 10.8). Size range: carapace length 2.2–4.8 (mean 3.5, n=10), body length 6.0–10.2 (mean 8.1, n=10).
Five promarginal cheliceral teeth, with the second one the largest and the distal one very small, and two or three retromarginal teeth.
Copulatory opening as in diagnosis. Epigynum strongly sclerotised and laterally flat, with rugose ventral surface; posterior margin with a pair of lobes in all examined specimens except for specimen LUNZ00012642, from Central Canterbury, which had a flat margin. Single copulatory opening with slight septum at posterior edge that leads to anteriorly visible copulatory ducts. Copulatory ducts bent vertically and directed ventrally, and connected to spermathecae. Spermathecae separated into two parts with fertilisation ducts arising from ventral side (
Figs 5
,
6
,
7
c–f).
FIGURE 6.
Clubiona blesti
, epigynum, dorsal view, cleared. cd—copulatory duct, fd—fertilisation duct, s—spermatheca. Scale bar = 1.0 mm.
Colour in ethanol (
Fig. 2
b). As for male.
Biology.
Forster (1979)
suggested that
C. blesti
is an active hunter associated with tussocks. The examined specimens were collected from the leaves and bases of
Chionochloa rigida
(Raoul) Zotov
, an alpine tussock grass species.
Distribution.
New Zealand
South Island (Fiordland, Dunedin, Central Otago, Otago Lakes, Mid Canterbury, Nelson) (Fig. 1).