Philisca doilu (Ramírez)

Soto, Eduardo M. & Ramírez, Martín J., 2012, Revision and phylogenetic analysis of the spider genus Philisca Simon (Araneae: Anyphaenidae, Amaurobioidinae) 3443, Zootaxa 3443 (1), pp. 1-65 : 14-17

Philisca doilu (Ramírez)

Figs 6–8 , 34e , 38e

Liparotoma doilu Ramírez, 1993 (female holotype, from Argentina: Neuquén: Lanín Natl. Park: Tromen Lake , I.1991, V. Fiorani, MACN, reexamined).

Philisca doilu: Ramírez 2003: 191 .

Diagnosis: Resembles P. hyadesi by the low cephalic area ( Ramírez 1993: fig. 30), the transversely wrinkled median field of the epigyne advanced from the epigastric furrow ( Fig. 6b ), and the elongate paramedian apophysis ( Fig. 8 ). It can be distinguished by the narrower sternum ( Fig. 7c ; width less than 63% of the sternum length).

Description: Female: described in Ramírez (1993).

Male (MACN-Ar 15097): Total length 11.97. Prosoma length 5.45, width 4.26. Length of tibia/metatarsus: I, 6.12/4.79; II, 5.05/4.26; III, 2.39/2.53; IV, 3.72/3.46. Chelicerae very strong ( Fig. 34e ), with two teeth on retromargin (basal tooth larger) and three on promargin (apical one very large). Sternum length 2.93, width 1.87. Spines: leg I, femur d 1–1–1, p 2ap. II, femur d 1–1–1, p d2ap. III, femur d 1–1–1, p and r d1ap or 0; patella r d1; tibia v 1–2ap or 0–2ap, p 0–1, r d1–1; metatarsus v 2–0–2, p and r d1–2ap. IV, femur d 3–2–1 or 2–2–1, r d1ap or 0; patella r d1; tibia v 2ap or p1ap, r d1–1; metatarsus v 2–p1–p1–2 or 2–0–0–2, d 2ap, p 1ap, r d1–1. Opisthosoma length 6.38, spiracle–epigastrium 2.80, spiracle–spinnerets 0.53. Color in ethanol ( Fig. 7 ): Prosoma and chelicerae reddish brown with white pubescence. Sternum brown. Legs brown with black spots, leg I darker than the others. Opistosoma light brown, with dorsal and ventral brown pattern. Femur IV in dorsal view with 2–4 spines at base. Palp ( Fig. 8 ): Tibia width/length 0.28. Embolus short, anterior margin longitudinally flattened, slightly projecting in a ridge; basal process flattened, rounded ( Fig. 8 ). MA long, with one big branch at base ( Fig. 8h ). PMA long and sinuous. Sperm duct without apical or retrolateral loop. pPMA simple, wide. Conductor complex, with canal, dentate prolateral ridge absent, prolateral portion with triangular, flattened projection; retrolateral portion thin, projecting in acute peak.

Variability: Spines: Females: III, tibia v 0–p1–2; IV, femur d 3–1–1, p 0, r d1ap; tibia r d1–d1–0–1. Males: IV, femur d 4–1–1 or 3–1–1, p d1ap.

Distribution: Southern forests in Chile, from Arauco (Region VIII) to Valdivia provinces (Region XIV), and in Argentina, in Neuquén province ( Fig. 38e ).

New records: ARGENTINA: Neuquén: Cerro La Mona , S40,5678º W71,69727º, 1500m, I.2006, V. Werenkraut, Pitfall, 1 male ( MACN-Ar 15097 ) , 2 males ( MACN-Ar 15098 ) . CHILE: Región IX (Araucanía): Malleco Prov.: Nahuelbuta Natl. Park , S37º47’ W73º00’, 1200m, 12.II.2005, J. Barriga T., fogging Nothofagus dombeyi , 1 female ( MACN-Ar 26762 ) , 1 immature ( MACN-Ar 26761 ) ; Malalcahuello Way Lonquimay , fogging, 1236m, 15ºC S38º26.377’ W71º30.540’, N. dombeyi , 35m, 9:47AM, 19.I.2007, Arias et al. Berkeley, 1 immature ( CASENT 9039004 ) ; Malalcahuello Way Lonquimay , fogging, 1221m, 29°C, S38°26.388’ W71°30.613’, N. dombeyi , 50m, 6:55PM, 18.I.2007, Arias et al. Berkeley, 1 immature ( CASENT 9039011 ) ; Malalcahuello Way Lonquimay , fogging, 1236m, 15ºC, S38º26.377’ W71º30.540’, N. dombeyi 35m, 9:47AM, 19.I.2007, Arias et al. Berkeley, 3 immatures ( CASENT 9039005 ) . Región XIV (de los Ríos): Valdivia Prov.: Valdivia , Chaihuin , Reserva Costera Valdiviana , Las Garzas , S39°59.640’ W73°35.197’, 360m, 20.9° C Fogging 150cc/l Nothofagus nitida , 11:00AM, 27.II.2008, Arias et al. UCB, 1 immature ( CASENT 9039015 ) ; Valdivia, Chaihuin, Reserva Costera Valdiviana , Las Garzas , S39°49.687’ W73°15.227, 360m, 17.3°C, fogging 150cc/l N. nitida , 11:00AM, 27.II.2008, Arias et al., 1 female and 9 immatures ( CASENT 9039063 ) , 1 female ( CASENT 9039067 ) .

Material re-examined: ARGENTINA: Neuquén: Lanín Natl. Park, Lago Huechulaufquen, Coloradas , 1.I.1985, M. Ramírez, 1 female ( MACN-Ar 14800 ) .

Figures

FIGURE 6. Female of Philisca doilu Ramírez (MACN-Ar 26762). (a female dorsal habitus; b epigyne, ventral view; c cleared epigyne, dorsal view). (AB: accessory bulbs, CD: copulatory ducts, MF: median field, S: spermathecae).

FIGURE 7. Philisca doilu Ramírez (MACN-Ar 15097). a–d male (a dorsal habitus; b prosoma, dorsal view; c ventral habitus; d prosoma, ventral view).

FIGURE 8. Philisca doilu Ramírez (MACN-Ar 15097). Male, a–c left palp (a prolateral view, b ventral view, c retrolateral view); d–h copulatory bulb (d prolateral view, e ventral view, f retrolateral view, g apical view, h apical–retrolateral detail view). (C: conductor, E: embolus, MA: median apophysis, PMA: paramedian apophysis, rPMA: retrolateral cusp of the paramedian apophysis).

FIGURE 34. Male chelicerae of Philisca species, anterior view. a P. hahni Simon (EMS-00123). b P. tripunctata Nicolet (MACN-Ar 26812). c P. amoena Simon (MACN-Ar 14805). d P.hyadesi Simon (MACN-Ar 3682). e P. doilu Ramírez (MACN- Ar 15097). f P. huapi Ramírez (MACN-Ar 14819). g P.ingensBerland (MACN-Ar 27955). h P.ornata Berland (EMS-00104).

FIGURE 38. Distribution of the continental species of Philisca.