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

http://doi.org/ 10.11646/zootaxa.4400.1.1

publication LSID

lsid:zoobank.org:pub:59CC08B8-5B13-42EC-943E-C930D7D0DD7F

persistent identifier

http://treatment.plazi.org/id/039B87D1-FFB4-B148-169B-FE3CC5DDF896

treatment provided by

Plazi

scientific name

Ariadna levii Grismado, 2008
status

 

Ariadna levii Grismado, 2008 

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

Ariadna levii Grismado, 2008: 345  , 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 9046508View Materials)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 ‒CView FIGURE 1, 18A, FView FIGURE 18, 20A, FView FIGURE 20, 22A, FView FIGURE 22, 31A, EView FIGURE31, 45A, FView FIGURE 45, 47A, FView FIGURE 47, 50A, FView 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 ‒EView FIGURE 50; Grismado 2008, fig. 6H); females are distinguished by the presence of a dorsal lobe longer than the ventral lobe ( Fig. 51C ‒DView FIGURE 51).

Description. Male (MACN-Ar 29452). Carapace and chelicerae reddish brown ( Fig. 50AView 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. 50BView FIGURE 50). Palps light orange ( Fig. 51A ‒BView FIGURE 51). Legs brownish orange, pairs I ‒II darker with dark pigment forming diffuse rings in the distal region of metatarsus ( Fig. 50C ‒EView FIGURE 50). Abdomen whitish grey, with a conspicuous dark dorsal pattern comprising arrow-shaped marks ( Fig. 50A ‒BView 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 ‒BView FIGURE 51). Legs: robust and densely coated with setae ( Fig. 50C ‒EView 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 ‒EView 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 ‒GView 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 ‒IView 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 ‒IView 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 ‒IView 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 ‒DView 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. 70View FIGURE 70).

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Segestriidae

Genus

Ariadna

Loc

Ariadna levii Grismado, 2008

Giroti, André Marsola & Brescovit, Antonio Domingos 2018
2018
Loc

Ariadna levii

Grismado 2008: 345
2008