Aysenia grismadoi, González, María E. & Ramírez, Martín J., 2012

González, María E. & Ramírez, Martín J., 2012, A revision and phylogenetic analysis of the spider genus Aysenia Tullgren (Araneae: Anyphaenidae, Amaurobioidinae), Zootaxa 3201, pp. 1-26 : 13-14

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).

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.

Figures

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).

FIGURE 11. Aysenia grismadoi new species. a - c male left palp, (a prolateral view; b ventral view, arrow to process on secondary conductor; c retrolateral view); d prosoma, lateral view.