Kochosa erratum, Framenau & Castanheira & Yoo, 2023

Framenau, Volker W., Castanheira, Pedro De S. & Yoo, Jung-Sun, 2023, The artoriine wolf spiders of Australia: the new genus Kochosa and a key to genera (Araneae: Lycosidae), Zootaxa 5239 (3), pp. 301-357 : 325

publication ID	https://doi.org/ 10.11646/zootaxa.5239.3.1
publication LSID	lsid:zoobank.org:pub:BF1FF837-56D5-4829-8D46-E821D9D31AB3
DOI	https://doi.org/10.5281/zenodo.7634823
persistent identifier	https://treatment.plazi.org/id/193AC81C-001A-FFE2-FF3C-FF1F19BB67AC
treatment provided by	Plazi
scientific name	Kochosa erratum
status	sp. nov.

Treatment

Kochosa erratum sp. nov.

( Figs 12A–E View FIGURE 12 , 13 View FIGURE 13 )

Holotype. Male , 7 km NE Mt Bluffkin (22º35′46″S 149º14′10″E, Queensland, AUSTRALIA), G. & S. Monteith, 16 December 1999 – 22 March 2000, pitfall trap ( QM S57812 View Materials ). GoogleMaps

Etymology. The specific epithet is a Latin noun in apposition meaning error. It refers to the fact that we initially included the specimens of this species in K. australia sp. nov. due to their similar male genital morphology.

Other material examined. 2 males, 7 km NE Mt Bluffkin , 22º35'46''S 149º14'10''E ( QM S57772 View Materials ) GoogleMaps .

Diagnosis. Males of K. erratum sp. nov. are most similar to those of K. confusa sp. nov. due to the exposed, arching base of the embolus and the sperm duct that is visible through the tegulum forming a closed loop ( Figs 10C View FIGURE 10 , 12C View FIGURE 12 ). Male K. erratum sp. nov. differ from K. confusa sp. nov. by details in the embolic division of the pedipalp, specifically the longer embolus and the presence of a sclerotised retrolateral edge ( Fig. 10E View FIGURE 10 vs 12E). The female of K. erratum sp. nov. is not known.

Description.

Male ( based on holotype, QM S57812 View Materials ) .

Cephalothorax. Dorsally dark brown; median light brown band narrowing posteriorly, lateral flanks marked by indistinct broad patches of white setae ( Fig. 12A View FIGURE 12 ). Sternum dark brown ( Fig. 12B View FIGURE 12 ).

Abdomen. Dorsally olive-grey, cardiac mark continuous ( Fig. 12A View FIGURE 12 ); venter light brown, centrally somewhat darker ( Fig. 12B View FIGURE 12 ).

Pedipalps ( Fig. 12C–E View FIGURE 12 ). Basoembolic apophysis reduced; tegular apophysis broad, transparent; embolus basally arched, then long and thin, strongly curved specifically apically ( Fig. 12E View FIGURE 12 ).

Legs. Brown; tibia and metatarsi I and II with distinct white setae prolaterally; spination of leg I: femur: 2 dorsal, 2 apicoprolateral; tibia: 3 ventral pairs, 1 apicoventral; metatarsus: 3 ventral pairs.

Measurements. TL 4.11, CL 2.48, CW 1.52. Eyes: AME 0.05, ALE 0.09, PME 0.22, PLE 0.18. Row of eyes: AE 0.67, PME 0.59, PLE 0.77. Sternum (length/width) 1.15/0.94. Labium (length/width) 0.40/0.36. AL 1.85, AW 1.30. Legs: Length of segments (femur + patella/tibia + metatarsus + tarsus = total length): Pedipalp 0.85+0.55+- +0.85=2.25, I 1.50+2.00+1.20+0.80=5.50, II 1.45+1.80+1.10+0.75=5.10, III 1.35+1.50+1.20+0.65=4.70, IV 1.85 +2.30+2.00+0.95=7.10.

Variation. Size (range, mean ± s.d.): TL 3.70–4.11, 4.03 ± 0.31; CL 2.15–2.48, 2.27 ± 0.18; CW 0.80–1.52, 1.21 ± 0.40, n = 3. The two other males examined, also from the type locality, are somewhat lighter than the holotype illustrated here and lack the distinct white prolateral setae on tibiae and metatarsi I and II.

Female. Unknown.

Life history and habitat preferences. The males of K. erratum sp. nov. have been found in pitfall traps from October to March. There was no habitat information on the collection labels with the specimens.

Distribution. Kochosa erratum sp. nov. is only known from the type locality, Mt Bluffkin, in central east Queensland ( Fig. 13 View FIGURE 13 ).