Revisions of Australian ground-hunting spiders VI: five new stripe-less miturgid genera and 48 new species (Miturgidae: Miturginae) Raven, Robert J. Hebron, Wendy Williams, Kylie Zootaxa 2023 2023-10-24 5358 1 1 117 Raven & Hebron & Williams, 2023 Raven & Hebron & Williams 2023 [151,419,1878,1905] Arachnida Zoropsidae Miturgopelma Animalia Araneae 16 17 Arthropoda species archeri sp. nov.   Fig. 7   Diagnosis.Differs from males of  Miturgopelma kinchega  sp. nov.in the short, not trianguloid vRTA and the ridge like median apophysis making it appear truncate in ventral view ( Fig. 7a). Female unknown.   Etymology.The species epithet is a patronym in honour of Professor Michael Archer, who, while at the QueenslandMuseum, recognised the significance of the Riversleigh fossil site, the typelocality.   Type material.  Queensland: male holotype, Riversleigh, site D, lagoon, 18°52’12.108”S 139°05’17.88”E,  123 m,  10 Jul–24 Sep 2006, R.  Raven, B. Baehr, A. Amey, Pitfall Trap, QM S77092.    Paratype. 1 male, same data as holotype, QM S77085.   Description.Male, holotypeQM S77092 Carapace 2.92 long, 2.27 wide. Opisthosoma 2.39 long, 1.91 wide. Total 4.3. Legs damaged. Colour in alcohol. Carapace yellowish with faintly discernible dark lateral scallops; opisthosoma dorsally pallid with black thread like lines forming faint ostiate pattern; legs pallid. Eyes. PME slightly biggest. AER just form two rows; PER with 15% overlap. Palp. RTA with blunt vRTA with folded tip, dRTA a short twisted triangular process with shallowly bifid tip. Cymbium with very narrow retrolateral groove in basal third. Bulb with large shield-like tegulum retrolaterally; embolus arising mid-prolaterad, tapers quickly. Median apophysis broad, short, with short, pointed apex aligned to appear blunt from below.   Distribution and Habitat.Known only from the famous fossil site in northwestern Queensland, Riversleigh, a rocky area of sparse dry vegetation. 4442871558 2006-07-10 2006-09-24 2006-07-10 R 123 -18.87003 Riversleigh 1 139.08829 17 18 1 Queensland holotype 4442871329 [455,1047,1604,1631] QM Raven, B & Baehr, A 17 18 S77092 1 Queensland holotype 4442871643 [199,807,1640,1667] 2006-07-10 2006-09-24 2006-07-10 QM 123 -18.87003 Riversleigh 1 139.08829 17 18 S77085 1 1 Queensland paratype