Namea nebo Rix & Wilson & Harvey 2020, sp. nov.
Creators: name: Rix, Michael G.
name: Wilson, Jeremy D.
name: Harvey, Mark S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Nemesiidae
Namea
Namea nebo

description: Namea nebo sp. nov.
(Figs 13, 16a, b, 68–80)
http://zoobank.org/?lsid= urn:lsid:zoobank.org:act: 4213049D-94A4-41B9-8014-8335C2C77F6F
Namea sp. ‘Nebo’ Rix et al., 2020: 683, 686, figs 2, 3.
Type material. AUSTRALIA: Queensland: male holotype, Mount Nebo, D’Aguilar National Park, Boombana section, site 1, 27°24’06”S, 152°47’24”E, pitfall trap, rainforest, 440 m, 1–30 August 2004, QM Party (QMB S65274 DNA). Paratypes: 3 males, same data as holotype except 30 June–1 August 2004 (QMB S67171).
Diagnosis. Males of Namea nebo can be distinguished from those of all other described congeners except N. bunya and N. nigritarsus by the following combination of four characters: embolus long, reflexed and whip like (Figs 78–80); retroventral margin of palpal tibia with single, isolated, proximal macroseta (Figs 71, 72); tibia I with prolateral (p) macrosetae (Figs 75, 77); and macroseta v1 on tibia I short, not reaching beyond ventro-distal margin of tibia I (Fig. 77). Males can be further distinguished from those of N. bunya by the longer macroseta v1 on tibia I (Fig. 77; cf. Rix et al. 2020, fig. 121); and from those of N. nigritarsus by the heart-shaped palpal bulb (Figs 78–80; cf. Figs 65–67), the more strongly concave ventro-distal excavation anterior to macroseta v1 (Fig. 77; cf. Fig. 64), and the covering of downy, reflective setae on the carapace (Figs 68, 70; cf. Figs 55, 57).
Females are unknown.
Description (male holotype): Total length 14.3. Carapace 5.7 long, 4.4 wide. Abdomen 5.9 long, 3.3 wide. Carapace (Fig. 68) dark chocolate-brown, covered with reflective downy setae (Fig. 70); lateral margins with fringe of anteriorly curved, porrect black setae, longest posteriorly; fovea straight. Eye group (Fig. 71) rectangular, twice as wide as long, PLE–PLE/ALE–ALE ratio 1.0; AME separated by less than their own diameter; PME separated by 3.4 X their own diameter; PME and PLE almost contiguous. Maxillae each with field of ca. 40–50 cuspules confined to heel and inner proximal corner (Fig. 72); labium without cuspules. Abdomen (Figs 69, 74) elongate-oval, dark grey-brown with course pale beige-brown marbled pattern dorsally, and pale beige-brown ventrally with finer dark brown mottling, the latter concentrated slightly anterior to spinnerets; covered with short, fine setae. Legs (Figs 68, 75–77) dark tan-brown, with light scopulae on tarsi I–II and distal half of metatarsi I–II; tibia I with 3 prodorsal, 3 prolateral, 4 proventral, 4 ventral, and 1 (small) retrolateral macrosetae; macroseta v1 not reaching beyond ventrodistal margin of tibia I (Fig. 77). Leg I: femur 4.4, patella 2.7, tibia 3.4, metatarsus 3.9, tarsus 2.6, total length 17.0. Leg I femur–tarsus/carapace length ratio 3.0. Pedipalpal tibia (Figs 78–80) 2.6 X longer than wide, with isolated, proximal retroventral macroseta, 1 retrodistal macroseta, 1 dorsal macroseta, 1 prodistal macroseta, 1 proventral macroseta, and 1 prolateral macroseta. Cymbium (Figs 78–80) setose, distally cleft in retrolateral view, with distal scopula. Bulb (Figs 78–80) heart-shaped, with long, whip-like, reflexed embolus arising from prolateral base of bulb.
Etymology. The specific epithet is a noun in apposition, in reference to the type locality of this species.
Distribution. Namea nebo is endemic to the D’Aguilar Range, where it is known only from rainforest at Mount Nebo (Fig. 2).
Remarks. This extremely rare species has only ever been collected at a single location within the Boombana section of D’Aguilar National Park. Nothing is known of its biology or life history, other than that males appear to be active in winter (July to August).
description: Published as part of Rix, Michael G., Wilson, Jeremy D. & Harvey, Mark S., 2020, The open-holed trapdoor spiders (Mygalomorphae: Anamidae: Namea) of Australia's D'Aguilar Range: revealing an unexpected subtropical hotspot of rainforest diversity, pp. 71-91 in Zootaxa 4861 (1) on pages 88-90, DOI: 10.11646/zootaxa.4861.1.5, http://zenodo.org/record/4414567