Wandella infernalis, Ivan L. F. Magalhaes, 2016

Ivan L. F. Magalhaes, 2016, On new or poorly known Australian Filistatidae spiders (Araneae: Araneomorphae), including a study on the fine morphology of Wandella, Journal of Natural History 50 (29 - 30), pp. 1815-1858: 22-25

publication ID

http://doi.org/ 10.1080/00222933.2016.1181805

publication LSID

lsid:zoobank.org:pub:327D7F9C-1ACC-4323-9D03-8D3A7B2E83D8

DOI

http://doi.org/10.5281/zenodo.5195193

persistent identifier

http://treatment.plazi.org/id/98A1EE99-6CE0-449F-B899-D2D4C24E542D

taxon LSID

lsid:zoobank.org:act:98A1EE99-6CE0-449F-B899-D2D4C24E542D

treatment provided by

Plazi

scientific name

Wandella infernalis
status

sp. nov.

Wandella infernalis   sp. nov.

( Figures 15 View Figure 15 , 19 – 21 View Figure 19 View Figure 20 View Figure 21 )

Type material

Holotype. Male from AUSTRALIA: Western Australia, 25 km northeast of Fitzroy Crossing, Geikie Range, cave KG- 47 (125.7416, − 18.04027), S. Eberhard & G. Forte, 1 / VII/ 1998 ( WAM T 132988). GoogleMaps  

Paratypes. Two females in the same vial.

Etymology

The specific name is an adjective referring to the subterranean habitat of this species, and is also a tribute to the notorious Australian rock band AC/DC, whose members have written several songs about hell.

Diagnosis

Males are most similar to those of Wandella centralis Gray   and Wandella pallida Gray   in having a long and slender palp; they can be distinguished from these and all other Wandella   species by having a strong ventral bump in the bulb just basal to the embolus ( W. pallida Gray   has a similar, but much more tenuous bump: see his fig. 114), and by the subtriangular paraembolic lamina ending close to the embolus ( Figure 19 View Figure 19 G). Females can be distinguished from other species by the subtriangular inner spermathecae, which point laterad ( Figure 20 View Figure 20 E).

Description

Holotype male from Cave KG- 47, Geikie Range, Western Australia, Australia ( WAM T 132988) ( Figures 19 View Figure 19 , 21 View Figure 21 A). Coloration: carapace cream, with brown median pattern and incomplete clypeal markings, and light brown median area, with slightly dark submarginal bands; chelicerae cream; labium and endites light cream; sternum light cream, with a pair of brown markings anteriorly; legs light cream, with incomplete light brown rings in the base and apex of the femora, tibiae and metatarsi; abdomen dorsum cream, with five light brown subtriangular markings; abdomen venter cream. Anterior margin of the carapace nearly straight. Sternum subrounded, sigillae not visible. Total length 2.74. Carapace length 1.16, width 0.90. Clypeus length 0.25. Eye diameters and interdistances: AME 0.06, PME 0.09, ALE 0.11, PLE 0.1, AME – AME 0.01, PME – PME 0.08. Palp: femur length 0.67, width 0.13, tibia length 0.36, width 0.14. Leg I: femur 2.11, patella 0.41, missing from tibia. II: fe 1.31, pa 0.37, ti 1.24. III: fe 1.18, pa 0.31, ti 1.04. IV: fe 1.56, pa 0.42, ti 1.45, mt 1.55, ta 0.69. Abdomen: length 1.65, width 1.01. Leg macrosetae: absent (leg I missing from tibia). Palp: cymbium horseshoe-shaped, prolateral excavation very large, occupying most of the prolateral face of the tegulum ( Figure 19 View Figure 19 F, Ex), paraembolic process subtriangular, distally detached, pointy, embolus short and nearly straight.

Paratype female from Cave KG- 47, Geikie Range, Western Australia, Australia ( WAM T 132988, preparation IFM-0824) ( Figure 20 View Figure 20 A – C). Coloration as in male. Sternum as in male. Total length 3.53. Carapace length 1.37, width 1.08. Clypeus length 0.24. Eye diameters and interdistances: AME 0.07, PME 0.09, ALE 0.11, PLE 0.09, AME – AME 0.02, PME – PME 0.07. Sternum length 0.86. width 0.62. Palp: femur length 0.96, width 0.23, tibia length 0.61, width 0.18. Leg I: femur 2.05, patella 0.41, tibia 2.5, metatarsus 2.02, tarsus 1.22. II: fe 1.43, pa 0.47, ti 1.26. III: fe 1.25, pa 0.43, ti 1.10. IV: fe 1.77, pa 0.42, ti 1.52, mt 1.45, ta 0.86. Abdomen: length 2.07, width 1.39. Leg macrosetae: absent. Calamistrum with three rows with 7 - 4?- 7 setae (inner to outer row). State of the specimen: left leg I missing from tibia, not dissected, carapace cuticle somewhat displaced beneath.

Paratype female from the same locality ( WAM T 132988, preparation IFM-0651) ( Figures 20 View Figure 20 D, E, 21 B). Epigastric furrow adorned with thick setae posteriorly, and a row of long setae anteriorly. Spermathecae: inner spermathecae subtriangular, more sclerotized than the laterals, pointing laterad, outer spermathecae rounded, on the top of a short annulated stalk.

Variation

Females (n = 2): total length 3.53 – 4.52 (4.03), carapace length 1.37 – 1.71 (1.54), femur I length 2.05 – 2.56 (2.31).

Note

Males and females have been matched because they have been collected in the same cave.

Distribution

Known from a single cave in Western Australia ( Figure 15 View Figure 15 ).

Material examined

Only the types.

WAM

Australia, Western Australia, Perth, Western Australian Museum

WAM

Western Australian Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Filistatidae

Genus

Wandella