Systematics of the spider genus Metabus O. P. - Cambridge, 1899 (Araneoidea: Tetragnathidae) with additions to the tetragnathid fauna of Chile and comments on the phylogeny of Tetragnathidae
Author
Álvarez-Padilla, Fernando
text
Zoological Journal of the Linnean Society
2007
2007-10-31
151
2
285
335
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2007.00304.x
journal article
10.1111/j.1096-3642.2007.00304.x
0024-4082
5431084
SYSTEMATICS OF
METABUS
AND
TETRAGNATHID SPIDERS 325
Figure 22.
A–E,
Chrysometa maitae
. A, female habitus. B, epigynum ventral view cleared. C, dorsal view cleared. D, central view. E, caudal view. F–I,
Chrysometa levii
. F, male habitus. G, male pedipalp ectal view. H, dorsal view. I, mesal view. Scale bars 0.2 mm; except A 1 mm.
(
Fig. 22A
); the epigynum shape, and the posterior origin of the fertilization ducts (
Fig. 22B–E
).
Description:
Female from Anticura, Puyehue National Park,
Chile
(FAP0354). Habitus as in
Figure 22A
. Total length 4.1. Cephalothorax 1.7 long, 1.3 wide, 0.7 high. Sternum 0.8 long and wide. Chelicerae same colour as cephalothorax. Abdomen oval with two dorsal tubercles 2.82 long, 2.97 wide, 1.88 high, venter with two parallel lines of guanine silver patches. AME diameter 0.11. ALE 0.11. PME 0.13. PLE 0.11. Clypeus height 0.7 × AME diameter. AME separation 1.0 × AME diameter. AME–ALE separation 1.3 × AME diameter. PME separation 1.0 × PME diameter. PME–PLE separation 1.2 × PME diameter. Leg I length 6.7, leg II 5.0, leg III 2.9, leg IV 4.2, pedipalp 1.6. Epigynum as in
Figure 22B–E
.
Variation:
Female total length 3.3–4.1, cephalothorax length 1.6–1.7.
Distribution:
Endemic of to
Chile
(
Fig. 11C
).
Material examined
(
N
= 12):
CHILE
:
Región X
de
los Lagos
,
Osorno
, 4.1
Km
E of Anticura
, trap site 662,
19–26.xii.1982
.
A. Newton
&
M. Thayer
leg.
1 female
(
AMNH
)
FAP0357
;
Aguas Calientes, P. N
. Puyehue,
500 m
,
2–5.i.1982
, L.
E. Peña
leg.
1 female
and
5 immatures
(
AMNH
)
FAP0354
largest female measured;
450 m
,
27.i.1986
,
N. I. Platnick
, & R.
T
.
Schuh
leg.
1 female
(
AMNH
)
FAP0356
;
Anticura
, E.
of
Puyehue
, 26-31.viii.
1–5.xi.1983
, L.
E. Peña
leg.
1 female
(
AMNH
)
FAP0355
;
Antillanca rd.
,
470–720 m
,
18–24.xii.1982
,
A. Newton
&
M. Thayer
leg.
1 female
(
AMNH
)
FAP0358
;
P. N. Puyehue
,
Anticura
,
40°40′0″S
,
72°10′30″W
,
350 m
,
13.xii.2000
−
2.i.2001
,
J. Miller
,
F. Álvarez
,
J. A. Coddington
&
G. Hormiga
leg.
1 female
(
USNM
)
FAP0352
smallest female measured;
G. Hormiga
leg.
1 female
(
USNM
)
FAP0353
.