A revision and phylogenetic analysis of the spider genus Aysenia Tullgren (Araneae: Anyphaenidae, Amaurobioidinae)
Author
González, María E.
Author
Ramírez, Martín J.
text
Zootaxa
2012
3201
1
26
journal article
45379
10.5281/zenodo.280155
e3adc1ca-993c-44e6-97dc-a1af67a65ff9
1175-5326
280155
Aysenia grismadoi
new species
Figs 10–11
Type
material:
Male
holotype
from
Chile
, Región IX de Araucanía, Malleco province, Nahuelbuta National Park,
S 37° 47’
W 73° 00’
,
1200 m
, fogging
Nothofagus dombeyi
,
12.II.2005
, J. E. Barriga, temporary preparations MGM-00020, MGM-00021, deposited in
MHNS
. Male
paratype
, same data as
holotype
, deposited in MACN-Ar 27075.
Etymology:
The specific name is a patronym, in honor of Cristian Grismado for his help and support during the preparation of this study.
Diagnosis:
Males can be distinguished by having a hook-shaped process on the C2 (
Fig. 11
b).
FIGURE 10.
Aysenia grismadoi
new species
.
a -d
male (
a
dorsal habitus;
b
prosoma, dorsal view;
c
ventral habitus, ventral view;
d
prosoma, ventral view).
Description:
Male
(
holotype
): Prosoma length 1.68, width 0.98, narrowed in front (
Fig. 10
b). Tibia/metatarsus length: I, 1.58/1.28; II, 1.16/1.00; III, missing; IV, 1.16/0.94. Chelicerae strong, with thick anterior bristles (
Fig.
10d), three contiguous teeth on retromargin and three on promargin. Sternum length 0.88, width 0.64. Spines: leg
I
, femur d 1-1-1, p d1ap; tibia
v 2
-r1-2, p d1-0-
v1
-d1-0; metatarsus
v 2
-r1, p 0-d1-0-d
1.
II
, femur = I; tibia v r1-r1-2, p 0-d1-1-0; metatarsus
v 2
-r1, p 0-d1-d
1.
III
, femur = I.
IV
, femur d 1-1-1; tibia v p1-p1-2, r 0-1-1; metatarsus d 2ap, v p1-p1-2, p 0-1-1, r d1-0-1. Opisthosoma length 2.28, spiracle–epigastrium 1.16, spiracle–spinnerets 0.30. Color in ethanol (
Fig. 10
a): Prosoma brown, ocular region slightly darker. Chelicerae brown. Legs yellowish brown with coxae and trochanters slightly lighter. Labium and sternum dark brown. Opisthosoma brownish violet, with two pale yellow dorsal spots, covered by white hairs. Venter dark brown. Palp (
Fig. 11
a–c): Tibia short, width/ length 0.48, RTA shorter, acute, wider at base. Cymbium relatively small. Cymbial conductor wide. Tegulum basal. Embolus with basal process flat, short, wide. Median apophysis apical, small and hook-shaped, behind the cusps of the APM and slightly sclerotized. Primary conductor with canal, heavily sclerotized in apical region. Paramedian apophysis with two cusps, slightly sclerotized, pPMA closer to median apophysis, rPMa close to tegulum (
Fig. 11
b). Secondary conductor with hook-shaped process.
Female
unknown.
Variability:
Tibia/metatarsus length: III, 0.72/0.7. Spines: leg
II
, metatarsus
v 2
-0-2-0.
III
, tibia d r1bas, p 1- d1-0-0, r 0 or r d1-0; metatarsus, d 0-p1-2,
v 2
-r1-2, p d1, r 1ap.
IV
, tibia v p1-p1-2, r 0- 1-1 or r 1-1-1; metatarsus, d 0-p1-2,
v 2
-p1-2.
Natural history:
Unknown.
Distribution:
Only known from the
type
locality in Malleco province.