Miturgopelma echinoides, Raven & Hebron & Williams, 2023

Raven, Robert J., Hebron, Wendy & Williams, Kylie, 2023, Revisions of Australian ground-hunting spiders VI: five new stripe-less miturgid genera and 48 new species (Miturgidae: Miturginae), Zootaxa 5358 (1), pp. 1-117 : 44-46

publication ID	https://doi.org/ 10.11646/zootaxa.5358.1.1
publication LSID	lsid:zoobank.org:pub:1A17A242-2E91-4F43-9E5D-063F8C0CBE72
DOI	https://doi.org/10.5281/zenodo.10169175
persistent identifier	https://treatment.plazi.org/id/7A20879E-5722-FFD1-7DD4-F9933C0C73CC
treatment provided by	Plazi
scientific name	Miturgopelma echinoides
status	sp. nov.

Treatment

Miturgopelma echinoides sp. nov.

Figs 2g View FIGURE 2 , 31–32 View FIGURE 31 View FIGURE 32

Diagnosis. Males are similar to those of Miturgopelma echidna sp. nov. in the presence of dorsal spines on the cymbium but differ in that RTA very short and the spines few and marginal on cymbium. The diagnostic feature of the median apophysis of M. echinoides sp. nov. is the median apophysis with an extensive unsclerotised area that projects as a rounded shelf retrolaterally ( Fig. 31a View FIGURE 31 , arrow). Epigyne with median septum short and wide, anterior septum, and procurved ridges with deeper median zone.

Etymology. The species epithet refers to the spinose form of the cymbium.

Type material. Western Australia: male holotype, Barrow Island, Bandicoot Bay , 20°52 115°20, 4 Nov –3 Dec 1993. M.S. Harvey, J.M. Waldock, Wet Pitfall traps, WAM98 View Materials /752.

Paratypes. 2 ma., 7–8 km. WNW of Point Salvation , 28°12”S 123°36”E, 1–3 Dec 1990, E. R . Pianka , pitfall trap, WAM T74061 , 74062–73 View Materials ; 1 ma., 2 fem., Woodstock Stn , site WS2, 21°36”S 118°57”E, 23–30 Sep 1988, J. Dell et al., Acacia orthocorpa and spinifex, WAM 97 View Materials / 749–751; 5 ma., Boodarie Hill area , 15 km SW Port Headland, 20°24’S, 118°31’E, 11–17 Oct 1994, G. Harold J. Dell, dry pit trap, WAM98 View Materials GoogleMaps / 878–887; 9 ma., Woodstock Stn , 21°36’35”S, 118°57’44”E, 23–30 Sep 1988, J. Dell et al., Wet pit trap, site W53, WAM98 View Materials GoogleMaps / 840–850; 5 ma., Woodstock Stn. Site WS5, 21°36’35”S, 118°59’16”E, 23–30 Sep 1988, J. Dell et al., Wet pit trap, WAM98 View Materials GoogleMaps / 858– 872; 18 ma., 7–8 km WNW of Point Salvation , 28°12’S, 123°36’E, 13–14 Nov 1990, E. R GoogleMaps . Pianka , pitfall traps, WAM98 View Materials /920–940.

Queensland: 8 ma., Thorntonia, 12 km NNE on Gregory Downs-Camooweal R, 19°24’25.74”S 138°59’8.52”E, 228m GoogleMaps , Pitfall Trap, 30 Jun–23 Sep 2006, QM S77093 , S77105 .

Description. Male, holotype WAM98/752

Carapace 3.08 long, 2.60 wide. Opisthosoma 3.32 long, 2.60 wide. Total, 6.7.

I: 3.12, 1.28, 2.72, 2.72, 1.92, 11.76. II: 2.72, 1.20, 2.56, 2.80, 1.60, 10.88. III: 3.04, 1.04, 2.24, 3.12, 1.68, 11.12. IV: 4.00, 1.20, 2.88, 4.24, 1.68, 14.00. Palp: 1.28, 0.64, 0.64, -, 1.28, 3.84.

Colour: Carapace pallid; opisthosoma, dorsally pattern not discernible, poor condition; entirely pallid; ventrally none, pallid. Eyes: AME very much bigger than PME. Legs moderately long.

Palp: Tibia and patella similar sized; cymbial hairs all similar, but with small ovoid scopula for distal third, but two large separated spines on prolateral edge and two slightly smaller almost adjacent to them but on prodorsal surface; retrobasally with unmodified, narrow edge; apex of ventral lobe short, triangular, laterally broad where it distally joins short sclerotised dorsal hook. Embolus origin at mid-length or just basal of it, base curves broadly and slowly. MA much longer than wide with broad unsclerotised zone almost to tip, unsclerotised area widens apically and projects as a rounded shelf retrolaterally.

Female WAM 97/750

Carapace 6.82 long, 5.45 wide. Opisthosoma 4.00 long, 3.64 wide. Total, 10.82.

I: 4.00; 1.64; 3.36; 2.91; 2.00; 13.91. II: 4.00; 1.64; 3.36; 2.82; 1.91; 13.73. III: 4.09; 1.73; 3.18; 3.45; 1.36; 13.82. IV: 5.18; 1.91; 4.45; 5.36; 2.27; 19.18. Palp: 2.18; 1.00; 0.91; -; 2.71; 5.64.

Scopula on tibia I narrow, ventral and lateral bands for distal 0.4 of I only. Epigyne: Median septum short wide anterior septum, procurved ridges with deeper median zone.

Distribution. Known from Barrow Island to Point Salvation, Western Australia, and western Queensland.