Ariadna levii Grismado, 2008

Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114 : 81-83

publication ID	https://doi.org/ 10.11646/zootaxa.4400.1.1
publication LSID	lsid:zoobank.org:pub:59CC08B8-5B13-42EC-943E-C930D7D0DD7F
DOI	https://doi.org/10.5281/zenodo.5987904
persistent identifier	https://treatment.plazi.org/id/039B87D1-FFB4-B148-169B-FE3CC5DDF896
treatment provided by	Plazi
scientific name	Ariadna levii Grismado, 2008
status

Treatment

Ariadna levii Grismado, 2008 View in CoL

Figures 50‒51 View FIGURE 50 View FIGURE 51 , 70 View FIGURE 70

Ariadna levii Grismado, 2008: 345 View in CoL , figs 5D‒E, 6D‒I (♂ holotype from N of Tiltil [33°04'00"S; 71°01'59"W], 800‒1300m, Cuesta La Dormida, Santiago, RM Región Metropolitana de Santiago, Chile, 13‒18.XI.1982, L. Peña leg., deposited in AMNH, examined; ♂ paratype from farmland, Isla Teja, ValdiVia, X Región de Los Lagos, Chile, 6.III.1965, H. LeVi leg., deposited in MCZ 47261, not examined).— World Spider Catalog (2018).

Additional material examined: CHILE: V Región de Valparaíso: Petorca Province: Zapallar [32°33'13"S; 71°27'32"W], Acon., 1♂, 27.XI.1950, Ross & Michelbacher leg. ( CAS 9046508 About CAS ) GoogleMaps ; Valparaíso [33°03'S; 71°37'W], 1♀, IV.1970, Fritz leg. (MACN-Ar 10509); VII Región de Maule: Cauquenes Province: Cauquenes, R. N. Los Ruiles, elev. 174M (35°50'02.6"S; 72°30'35.7"W), 3♂ 1imm., 17.VII.2010, A. Ojanguren et al. leg. (MACN-Ar 29452); Curicó Province: Curicó, Las Tablas, East of Curicó (34°59'S; 71°14'W), 2♀ 2imm., II.1985, L. Peña leg. ( AMNH); IX Región de Araucanía: Cautín Province : Temuco , Cerro Ñielol [38°43'40.91"S; 72°32'34.42"W], 1♂, 15.I.1989, M. Ramírez leg. (MACN-Ar 10088); XIV Región de Los Ríos: Valdivia Province : Valdivia [39°49'51"S; 73°13'15"W], 3♀, 1983, E. Krahmer leg. ( MHNS 836 ) GoogleMaps .

Diagnosis. Ariadna levii is similar to A. crassipalpa , A. mollis , A. boesenbergi , A. calilegua , A. changellkuk and A. perkinsi due to the dark abdominal pattern with arrow-shaped marks ( Figs 1A‒C View FIGURE 1 , 18A, F View FIGURE 18 , 20A, F View FIGURE 20 , 22A, F View FIGURE 22 , 31A, E View FIGURE31 , 45A, F View FIGURE 45 , 47A, F View FIGURE 47 , 50A, F View FIGURE 50 ), but males differ by the presence of metatarsi I straight with two apophyses: one ventro-prolateral bearing a short and curved macrosetae, and a ventro-retrolateral one, with non-modified macrosetae ( Fig. 50C‒E View FIGURE 50 ; Grismado 2008, fig. 6H); females are distinguished by the presence of a dorsal lobe longer than the ventral lobe ( Fig. 51C‒D View FIGURE 51 ).

Description. Male (MACN-Ar 29452). Carapace and chelicerae reddish brown ( Fig. 50A View FIGURE 50 ). Endites brownish orange; labium dark brownish orange. Sternum brownish orange, with darker margins, marbled with dark pigment, and three pairs of fainted dark marginal areas ( Fig. 50B View FIGURE 50 ). Palps light orange ( Fig. 51A‒B View FIGURE 51 ). Legs brownish orange, pairs I‒II darker with dark pigment forming diffuse rings in the distal region of metatarsus ( Fig. 50C‒E View FIGURE 50 ). Abdomen whitish grey, with a conspicuous dark dorsal pattern comprising arrow-shaped marks ( Fig. 50A‒B View FIGURE 50 ). Total length 7.24; carapace 3.44 long, 2.24 wide. Palps: tibia incrassated, with the dorso-ventral diameter slightly shorter than the bulb; cymbium with a dorsal chemosensory patch; bulb rounded, mid-portion about two times shorter than the embolus; transition mid-portion/embolus conspicuous; embolus tubular and tapered ( Fig. 51A‒B View FIGURE 51 ). Legs: robust and densely coated with setae ( Fig. 50C‒E View FIGURE 50 ); tarsal brush of putative chemosensory setae present in legs I‒III, but reduced. Leg formula: I-II-IV-III. Leg measurements: I, femur 2.88, patella 1.24, tibia 2.6, metatarsus 2.76, tarsus 0.72, total 10.2; II, 2.6, 1.28, 2.76, 2.64, 0.72, 10.0; III, 2.04, 1.0, 1.6, 1.6, 0.56, 6.8; IV, 2.32, 1.08, 2.04, 1.76, 0.6, 7.8. Macrosetae: I, femur d0-0-0-0-1-1/2-0, p0-0-0-0-2-1-0; patella p0-1-0; tibia d0/1-2/1-0-2-0-1/2-0, p0-0-0-1-0- 1-0, vp1-0-1-0-1-0-1, vr2-0-1-0-1-0-1, r1-1-1-1-1-1-0; metatarsus vp1-0-0-1(reduced/apophysis)-0-0-1, vr0-0-0-1- 0-0-1 ( Fig. 50C‒E View FIGURE 50 ); II, femur d0-1/0-0-1-0-1-0-2-0, p0-0-0-0-0-0-1-1-0; patella p0-1-0; tibia d0-0-0-1-0-1-0, p1-0/ 1-0-1-0-1-0, vp0-0-0-0-1-0-1, vr2-0/1-1-0-1-0-1, r1-1-1-1-1-1-0; metatarsus vp1-0-0-1-0-0-1, vr1-0-0-1-0-0-1, r0- 1-0-0-0-0-0; IV, femur d1-1-1-0/1-1-0/1-1-0, r0-0-0-0-0-0-1-0; tibia vp0-0-1/0-0-0-0-1, vr0-0-0-0-0-0-1, r0-0-0-0- 0-1/0-0; metatarsus p1-0-0-0-0-0-0, vp1-0-0-1-0-0-1, vr metatarsal comb with 4 macrosetae.

Female (MHNS 836). Coloration of carapace, chelicerae, endites, sternum and abdomen as in male ( Fig. 50F‒G View FIGURE 50 ). Palps brownish orange, with tibia and tarsus reddish. Legs brownish orange, with pairs I‒II darker. Tibia, metatarsus e tarsus I‒II reddish orange ( Fig. 50H‒I View FIGURE 50 ). Total length 9.68; carapace 3.6 long, 2.12 wide. Legs: robust and densely coated with setae; legs I‒II with ventro-prolateral and ventro-retrolateral tibial macrosetae of similar size, and metatarsal macrosetae of different sizes ( Fig. 50H‒I View FIGURE 50 ). Leg formula: I-II-IV-III. Leg measurements: I, femur 2.2, patella 1.12, tibia 1.96, metatarsus 1.68, tarsus 0.56, total 7.52; II, 1.96, 1.04, 1.88, 1.52, 0.52, 6.92; III, 1.6, 0.92, 1.2, 1.12, 0.48, 5.32; IV, 2.0, 1.16, 1.6, 1.28, 0.52, 6.56. Macrosetae: I, femur d0-0-0-0-1-2-0, p0-0-0-0-2- 1-0; patella p1/0; tibia p0-1/0-0-1-0-1-0, vp1-0-1-0-1-0-1, vr1-0-1-0-1-0-1, r0-1-0-1/0-0-1-0; metatarsus vp1-1-1- 1-1-1-1-1, vr1-1-1/0-1-1-1-1-1 ( Fig. 50H‒I View FIGURE 50 ); II, femur d0-0-0-0-1/0-2-0, p0-0-0-0-1-1-0; tibia p0-1-0-1-0-1-0, vp1(slender)-0-1-0-1-0-1, vr1-0-1-1-1-0-1, r1/0-0-0-0-0-0-0; metatarsus vp1-1-1-1-1-1-1-1, vr1-1-1-0-1-1-1-1; IV, femur d0-1/0-1-0-0-0-0, r0-0-0-0-0-0/1-0; metatarsus vp1/0-1-0-0-0-0-1, vr metatarsal comb with 4-5 macrosetae. Internal genitalia: anterior receptaculum with the glandular ducts plate in the median region ( Fig. 51C‒D View FIGURE 51 ).

Variation. Male (n=6): Total length 5.08‒7.24; carapace 2.08‒3.72 long, 1.84‒2.28 wide; femur I 2.44‒3.0. Female (n=5): Total length 7.44‒9.68; carapace 3.2‒4.16 long, 1.96‒2.48 wide; femur I 2.04‒2.76.

Distribution. Center of Chile ( Fig. 70 View FIGURE 70 ).