Allende patagiatus, (SIMON, 1901), Álvarez-Padilla, 2007

Álvarez-Padilla, Fernando, 2007, Systematics of the spider genus Metabus O. P. - Cambridge, 1899 (Araneoidea: Tetragnathidae) with additions to the tetragnathid fauna of Chile and comments on the phylogeny of Tetragnathidae, Zoological Journal of the Linnean Society 151 (2), pp. 285-335: 312

publication ID

http://doi.org/ 10.1111/j.1096-3642.2007.00304.x

persistent identifier

http://treatment.plazi.org/id/038A3406-BF19-FF3B-FF10-F961FA71F8B0

treatment provided by

Felipe

scientific name

Allende patagiatus
status

COMB. NOV.

ALLENDE PATAGIATUS ( SIMON, 1901)   COMB. NOV.

Meta patagiata Simon, 1901: 18   (female holotype in MNHN, examined).

Meta echinata Tullgren, 1902: 19   , pl. 2, f. 1 (male holotype in NRS, examined). New synonymy.

Metabus echinatus ( Tullgren, 1902)   : Archer, 1963: 17.

Diagnosis: This species can be distinguished from other Allende species   by the following combination of characters: epigynum wider than long, and small apical invaginations covered by the dorsal plate ( Fig. 17C–E View Figure 17 ); cymbial median process straight and covered with short macrosetae ( Fig. 17J View Figure 17 ), cymbial basal process apophyses with two apical denticles ( Fig. 17L View Figure 17 ); and the shape of the conductor tip ( Fig. 17K View Figure 17 ).

Description: Female from Nahuelbuta, sendero Piedra del Aguila, Chile (FAP0243). Habitus as in Figure 17A View Figure 17 . Total length 12.3. Cephalothorax 4.0 long, 3.3 wide, 1.1 high. Sternum 1.8 long, 1.7 wide. Chelicerae smooth and light in colouration ( Fig. 17B View Figure 17 ). Abdomen oval 10.0 long, 5.8 wide, 6.3 high, with a caudal protuberance, venter with a median dark brown rectangular area delineated by two thin white lines. AME diameter 0.19. ALE 0.19. PME 0.20. PLE 0.15. Clypeus height 1.3 × AME diameter. AME separation 1.1 × AME diameter. AME–ALE separation 1.7 × AME diameter. PME separation 1.0 × PME diameter. PME–PLE separation 1.5 × PME diameter. Leg I length 19.3, leg II 17.3, leg III 8.7, leg IV 13.3, pedipalp 4.8. Epigynal median plate with two round protuberances ( Fig. 17D, E View Figure 17 ), spermathecae ovalshaped longer than wide ( Fig. 17F, G View Figure 17 ).

Male from Puyehue, Anticura, Chile (FAP0261). Habitus as in Figure 17H View Figure 17 . Total length 7.8. Cephalothorax 3.3 long, 2.5 wide, 0.9 high. Sternum 1.6 long, 1.5 wide. Chelicerae pattern as in Figure 17I View Figure 17 . Abdomen oval, venter as in female. 4.9 long, 3.9 wide, 2.5 high. AME diameter 0.17. ALE 0.14. PME 0.17. PLE 0.13. Clypeus height 1.1 × AME diameter. AME separation 0.9 × AME diameter. AME–ALE separation 1.4 × AME diameter. PME separation 0.9 × PME diameter. PME– PLE separation 1.4 × PME diameter. Leg I length 29.4, leg II 18.3, leg III 8.8, leg IV 12.7, pedipalp 6.1. Pedipalp tibia 3.1 times longer than wide. Embolic basal apophysis short, pedipalp as in Figure 17J–M View Figure 17 .

Variation: The colouration of the dorsal surface of the abdomen varies from almost white to dark brown, and no geographical pattern correlates with this colour variation. Female total length 7.1–12.7, cephalothorax length 2.9–4.0. Male total length 6.2–9.2, cephalothorax length 3.3–4.2.

Distribution: A. patagiatus   is found in Chile and Argentina ( Fig. 11B View Figure 11 ). Its geographical range covers the following latitudes 31°50′0″S to 42°53′55″S, and altitudes from 40 to 1100 m.

Material examined (N = 83): ARGENTINA: Río Negro, El Bolsón , 41°58′0″S, 71°31′0″W, 1.ii.1961, A. Kovacs leg. 1 female ( AMNH) FAP0258 GoogleMaps   . CHILE: Región IV del Coquimbo, Los Vilos , 21.x.1994, L. E. Peña   leg. 1 male ( AMNH) FAP0252   largest male measured. Región V de Valparaiso, Valparaiso, Cerro Molle, 1 female  

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Allende

Loc

Allende patagiatus

Álvarez-Padilla, Fernando 2007
2007
Loc

Metabus echinatus ( Tullgren, 1902 )

Archer AF 1963: 17
1963
Loc

Meta echinata

Tullgren A 1902: 19
1902
Loc

Meta patagiata

Simon E 1901: 18
1901