Aname aragog, Harvey, Frances S. B., Framenau, Volker W., Wojcieszek, Janine M., Rix, Michael G. & Harvey, Mark S., 2012

Harvey, Frances S. B., Framenau, Volker W., Wojcieszek, Janine M., Rix, Michael G. & Harvey, Mark S., 2012, Molecular and morphological characterisation of new species in the trapdoor spider genus Aname (Araneae: Mygalomorphae: Nemesiidae) from the Pilbara bioregion of Western Australia, Zootaxa 3383, pp. 15-38: 30-32

publication ID

http://doi.org/ 10.5281/zenodo.215484

publication LSID

lsid:zoobank.org:pub:3BC5B4FB-8A70-4363-A45E-08F03E2204AA

persistent identifier

http://treatment.plazi.org/id/64441CB3-C96C-4D3F-893B-BA339DA54573

taxon LSID

lsid:zoobank.org:act:64441CB3-C96C-4D3F-893B-BA339DA54573

treatment provided by

Plazi

scientific name

Aname aragog
status

n. sp.

Aname aragog  n. sp.

Figs 7View FIGURES 5 – 8, 9View FIGURE 9, 25–33View FIGURES 25 – 33

Type material. AUSTRALIA: Western Australia: holotype male, Jimblebar minesite, 35 km E. of Newman, 23 ° 22 ’ 44 ”S, 120 ° 15 ’ 27 ”E, 8 February 2009, P. Bolton, C. Weston ( WAM T 95404View Materials DNA).

Etymology. This species is named for J. K. Rowling’s fictional spider Aragog  which first appeared in Harry Potter and the Chamber of Secrets ( Rowling 1998). The name is to be treated as a noun in apposition.

Diagnosis. Males of A. aragog  are unique in the genus in having metatarsus I with a short and shallow basal excavation, and a very shallow proximal edge of the process on tibia I ( Fig. 31View FIGURES 25 – 33). Males of A. aragog  differ from other Pilbara species described here by their overall darker colouration ( Figs 25–31View FIGURES 25 – 33) and larger size. The embolus is much shorter than that of A. mellosa  ( Fig. 32View FIGURES 25 – 33), and the pedipalpal bulb is much more bulbous than in A. ellenae  and A. marae  ( Fig. 32View FIGURES 25 – 33). Females of A. aragog  are unknown.

Description. Adult male (based on holotype WAM T 95404View Materials): medium-sized nemesiid spider (total length 27.2).

Colour: carapace brown with somewhat darker cephalic region ( Fig. 25View FIGURES 25 – 33), eye region brown ( Fig. 28View FIGURES 25 – 33); sternum light brown, darker towards margins, sigilla and labium brown ( Fig. 27View FIGURES 25 – 33); abdomen dorsally dark greyish brown, centrally darker with dark purple tinge, ventrally light brown ( Fig. 26View FIGURES 25 – 33); chelicerae glabrous very dark brown to black; pedipalp segments uniformly dark brown ( Fig. 32View FIGURES 25 – 33), legs brown, metatarsi and tarsi somewhat lighter in particular ventrally ( Fig. 30View FIGURES 25 – 33).

Carapace: 8.9 long, 6.7 wide; eye group ( Fig. 28View FIGURES 25 – 33) 1.5 wide, 0.8 long; fovea slightly procurved ( Fig. 25View FIGURES 25 – 33).

Sternum and labium: 5.2 long, 3.5 wide; 2 pairs of indistinct elongated sigilla in posterior half ( Fig. 27View FIGURES 25 – 33); labium wider than long, slightly indented anteriorly ( Fig. 29View FIGURES 25 – 33).

Maxillae: with> 150 pin-like cuspules, extending to heel and to centre of maxillae ( Fig. 29View FIGURES 25 – 33).

Chelicerae: without rastellum, promargin with 9 large teeth, retromargin with 5 smaller teeth proximally.

Abdomen: 10.0 long, 5.9 wide ( Fig. 26View FIGURES 25 – 33). Four spinnerets, terminal segment of posterior lateral spinnerets digitiform.

Pedipalp: length of femur 4.7, patella 2.8, tibia 3.1, tarsus 3.1. Femur and patella without spines; tibia with 1 medio-ventral spines and 1 ventro-prolateral spines in apical half, tibia with indistinct disto-ventral depression without setae (accommodates bulb and embolus) ( Fig. 32View FIGURES 25 – 33); tarsus terminally blunt; bulb globular, embolus ca. 0.6 long, curved mainly at base and tapering ( Figs 32, 33View FIGURES 25 – 33).

Legs: femur I with 1 dorsal spine in basal half and 1 disto-prolateral spine, patella with 2 prolateral spines, metatarsi and tarsi without spines. Tibia I with large spur and megaspine, metatarsi incrassate ( Figs 30, 31View FIGURES 25 – 33). Tarsi and apical half of metatarsi of leg I and II ventrally with entire dense scopula, tarsi of legs III and IV with divided scopula. Tarsi, metatarsi and tibiae with numerous dorsal trichobothria of variable length. Paired tarsal claws of legs with two rows of 8–12 teeth each; third tarsal claw reduced and very small.

Leg measurements: length of legs IV>I>II>III. leg I: femur 6.5, patella 4.0, tibia 5.0, metatarsus 5.1, tarsus 3.1, total = 23.7. Dorsal proximal width of patella I = 1.8, tibial index = 0.2, leg I formula = 2.66. Leg II: femur 6.0, patella 3.4, tibia 4.5, metatarsus 4.9, tarsus 3.1, total = 21.9. Dorsal proximal width of patella II = 1.5, tibial index = 0.19; leg II formula = 2.46. Leg III: femur 5.2, patella 3.0, tibia 3.2, metatarsus 6.6, tarsus 2.9, total = 20.9. Dorsal proximal width of patella III = 1.5, tibial index = 0.24; leg III formula = 2.35. Leg IV: femur 7.0, patella 3.5, tibia 5.9, metatarsus 6.3, tarsus 2.9, total = 25.6. Dorsal proximal width of patella IV = 1.6, tibial index = 0.17; leg IV formula = 2.87.

Variation: unknown.

Adult female: unknown.

Distribution. Aname aragog  has been found at a single location at the Jimblebar minesite, ca. 35 km E. of the township of Newman ( Fig. 6View FIGURES 5 – 8).

WAM

Western Australian Museum

DNA

Department of Natural Resources, Environment, The Arts and Sport

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Nemesiidae

Genus

Aname