Knotodo eneabba, 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 : 79-81

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.10169212

persistent identifier

https://treatment.plazi.org/id/7A20879E-5747-FFAC-7DD4-F98D3AD47217

treatment provided by

Plazi

scientific name

Knotodo eneabba
status

sp. nov.

Knotodo eneabba sp. nov.

Figs 63–64 View FIGURE 63 View FIGURE 64

Diagnosis. Males resemble those of K. toolinna sp. nov., but differ in the apex of the median apophysis scoop-like, with only a mound basally ( Fig. 63a View FIGURE 63 ). Female unknown.

Etymology. The species epithet is a noun in apposition from the type locality.

Type Material. Western Australia: male holotype, Eneabba , Revision Guild Corp., area 4, 29°50`S 115°15`E=29.8333 115.2500, 1 Jun 1993, R.P. McMillan & R.J. Colum, pitfall trap, WAM T33482 GoogleMaps .

Paratypes. 2 ma., Grass Valley , 28 April 2012, Mick Davis, WAM ; 1 ma., Trayning , 31°07’S, 117°48’E, 18 May 1989, A. Dugand, WAM 98 About WAM /761; GoogleMaps 1 ma., Grasspatch, Fitz. Loc 41, 33°14’S, 121°43’E, 4 May 1989, A.F. Longbottom, WAM T74167 GoogleMaps ; 2 ma., Queen Victoria Spring Nature Res., Ponton Ck , 30°25’04”S, 123°35’7.8”E, 18 Apr 1996, R. Horley, Trapline , WAM98 About WAM /736–7; GoogleMaps 6 ma., Fitzgerald River NP, 34°01’32”S, 119°34’42”E, Apr 1986, A. Chapman (via B.Y. Main), WAM98 About WAM /762–767; GoogleMaps 1 ma., Perth Airport Site 3, 31°55’24”S, 115°58’40”E, 5–8 May 1987, W. Humphreys et al., WAM T74169 GoogleMaps . South Australia: 1 ma., Renmark , 32 km N, 33°53’S, 140°44’E, chenopod scrubland, flight/ ground intercept trap, 29 Mar–3 May 1995, K. R. Pullen , QM S41781 GoogleMaps .

Description. Male, holotype WAM T33482

Carapace 3.92 long, 3.01 wide. Opisthosoma 4.13 long, 2.09 wide. Total, 8.1.

I: 5.27, 1.67, 5.40, 5.40, 3.47, 21.21. II: 5.60, 1.87, 5.54, 5.60, 3.60, 22.21. III: 6.14, 1.74, 6.00, 6.80, 4.20, 24.88. IV: 7.47, 1.94, 7.07, 8.00, 4.60, 29.08. Palp: 1.74, 0.87, 1.54, -, 2.00, 6.15.

Colour. Carapace fawn with strong wide black sash medially from and including all eyes narrowing prefoveally and widening again posteriorly, black flecks laterally on caput, two at caput construction on margin and one subcentrally; opisthosoma dorsally fawn with long wide black sash medially breaking up slightly on posterior edges; venter pallid save for 2 black marks lateral of spinnerets; femora yellow brown with slightly black mottling. Carapace margins with long hoary white hair.

Eyes: Eight in 2 recurved rows; front edge of ALE in base of back edge of AME, likewise in back row. Relative sizes: AME>PME>PLE>ALE. Front width, back width, long, 41:49:32. Sizes: AME, 11; ALE, 6; PME, 8; PLE, 10. AME–AME, 6; AME–ALE, 6; PME–PME, 7; PME–PLE, 0. Chelicerae. Promargin with 3 teeth, retromargin with 2. Sternum pilosity: long white hairs on margins, rest short brown bristles centrally directed, more thickened.

Legs. Very long. Trochanter notches ca. x 1.5 wider than deep. STC with 6 long teeth. Tarsi bowed. Scopula thin in bands 1/2–2/3 of metatarsi I–IV; denser but still thin on tarsi I–IV; pseudotufts not dense but extend beyond claws. Spines. I: fe pv1p2d3r4; pa 0; ti p2d3r2v2.2.2; me p1.2r1.1.v2.2. II: fe pv1p3d3r3; pa 0; ti p2d3r2v2.2.2; me p0r1. v2.2. III: fe p4d3r4; pa 0; ti p2d2.1r2v2.2.2; me p1.1.1.1r2.1.1v2.2.1. IV: fe p4d3r3; pa 0; ti p2d2.1r2v2.2.2; me p1.1.1.2r2.1.2v2.2.1. Palp: fe p1d1.1.2; pa p1d1.1 (including 1 apical); ti p3d1.

Spinnerets: PLS and ALS long cylindrical; PLS ca. 0.5 x diameter of ALS with conical apical article; PMS smaller cylinders.

Palp. Tibia short with longitudinal ridge on prolateral edge. RTA large trianguloid, widest basally, laterally resembles lip of univalve mollusc with strong sclerotised ridged fold dorsally meeting rounded fold with less sclerotisation and basal twisting ridge ventrally. From above, dorsal process pointed, horn-like, ventral lobe rounded with subapical lobe, intervening area unsclerotised. Cymbium dorsally with long white hairs and brown bristles, none thick, scopula absent; apical cone short, sharply conical with pallid crescent under apex; lateral margins all narrow. Median apophysis large, like head of cobra with narrow prolateral edge, narrow ridge, and scooped retrolateral flare sclerotised for most of its length and fused on prolateral edge to base of embolus. Embolus originates probasally, sweeps above median apophysis, unsclerotised conductor extends from prolateral corner of tegulum to behind median apophysis. Tegulum deep, gourd-shaped. Subtegulum smaller L-shaped with narrow ridge between embolus base and basal tegulum.

Distribution. Known from South Australia and Western Australia.

WAM

Australia, Western Australia, Perth, Western Australian Museum

QM

Australia, Queensland, South Brisbane, Queensland Museum

WAM

Western Australian Museum

R

Departamento de Geologia, Universidad de Chile

QM

Queensland Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Xenoctenidae

Genus

Knotodo

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