The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
Author
Barrientos, José Antonio
Author
Brañas, Neus
Author
Mederos, Jorge
text
Zoosystema
2020
2020-01-23
42
1
1
29
journal article
24248
10.5252/zoosystema2020v42a1
f3328b3e-6059-40b6-b7f5-1c19aa90f676
1638-9387
3627057
urn:lsid:zoobank.org:pub:D14C124B-4CB6-4097-95F9-CACECBE4C844
Palliduphantes megascapus
Barrientos
n. sp.
(
Figs 12
;
15
D-F)
urn:lsid:zoobank.org:act:
885DDD66-4851-4A1D-BC5E-812B5D20ADBE
TYPE
MATERIAL. —
Holotype
.
Morocco
.
1♀
;
Puits Cochrisco C.A.
8,
Azour
ou
Aghroud
,
Tarhazoute
,
Agadir Ida Ou Tanane
;
27.IX.2016
;
C. Fontgivell
leg.;
MZB 2016-4101
.
Paratypes
.
Morocco
.
3♀
; same locality and date as the
holotype
;
MZB 2017-0668
.
OTHER
MATERIAL. —
Morocco
.
1♀
;
Ifri Laghar
(=
Ifri Tagaderth
, =
Al Andalus
),
Tizgui N’Chorfa
,
Agadir Ida Ou Tanane
;
23.VII.2003
;
J. Esquius
leg.;
MZB 2003-1261
•
2♀
; same locality;
23.VII.2003
;
F. Fadrique
&
J. Esquius
leg.;
MZB 2003-1288
•
1♀
; same locality;
13.X.2015
;
F. Fadrique
leg.;
MZB 2015-8618
•
1♀
;
Puits Cochrisco C.A.
10,
Azour
ou
Aghroud
,
Tarhazoute
,
Agadir Ida Ou Tanane
;
26.VII.2003
;
F. Fadrique
&
J. Esquius
leg.;
MZB
2013-2950
•
1♀
,
1 juv.
;
Cv. Imi Ougoug
,
Assif N’Talma
,
Immouzzer
,
Agadir Ida Ou Tanane
;
27.VII.2003
;
F. Fadrique
leg.;
MZB
2013-2949
.
DIAGNOSIS. — The epigyne is very developed, occupying a large part of the middle ventral zone of opisthosoma. Its anterior and lateral walls are lengthened and oriented backwards. The scape acquires a great development. The proscape is narrow, elongating backwards, the middle part is very long, almost reaching the opisthosomal wall, where it curves in “C” and connects with the distal part. The whole structure is very sclerotized. Its development and appearance is visible particularly laterally.
ETYMOLOGY. — The name of the new species refers to the enormous development of the female genitalia, in relation to the size of the opisthosoma, especially; to the length of the scape.
DISTRIBUTION. — The four cavities in which this species is found are in the province of
Agadir
Ida Ou Tanane (two in Tarhazoute [C.A.8 and C.A.10], one in Tizgui N’Chorfa [Ifri Laghar] and another in Immouzzer [Cv. Imi Ougoug]), in Antiatlas, southern
Morocco
.
DESCRIPTION
Female (
holotype
)
Body.
Total body length: 2.40. Carapace: 1.03 long by 0.83 wide, light brown, without additional pigmentation pattern, but with some hairs scattered on the cephalic part. Eyes developed and pigmented, with black areolas that meet the eyes MA, LA and LP; arranged in the two typical transverse lines. Chelicerae:
0.42 in
length and with a similar coloration to that of carapace; three teeth on the promargin (the basal much smaller and separated from the others) and unarmed retromargin. Brown legs, with darker femurs, long and thin; measurements: leg I (1.37 + 0.27 + without + without + without), leg II (1.30 + 0.27 + 1.22 + 1.17 + 1.59), leg III (1.15 + 0.22 + 0.93 + 0.95 + 0.22), and leg IV (1.40 + 0.25 + 1.30 + 1.22 + 0.73). Opisthosoma, 1.37 long by 1.08 wide, more or less uniform grayish, and without dorsal pigmentation pattern, but covered with thin and scattered hairs.
Female genitalia.
Epigyne (
Figs 11A, B
;
15
D-F) highly developed and protruding on the ventral side of the epigastrum, tilted backwards and covering the central half of the postepigastrum. Its basal part elongate in front and on the sides, orienting itself towards the back; bursa copulatrix opening in its distal part. Anterior and lateral walls with a scattered and clearly distinct pilosity, with some long hairs areolated at their base. Posterior wall with a middle plate, not very visible because arranged against the opisthosomal surface. The side walls not forming “wings”, although they cover the base of the scape. Proscape quite narrow and not very individualized; merging with the end of the anterior wall and elongate backward, giving a rather voluminous structure. Middle part of the scape bending and facing forward. Entire scape narrowed, elongated and well sclerotized. Near the back wall, distal part of the scape widening and curved again, describing a “C. The whole structure forming a rigid and narrow structure revealing the fertilization ducts by transparency. The two receptacles also observed, at the base of the structure.
Male
Unknown.