Hoggicosa duracki Langlands & Framenau, 2010

Langlands, Peter R. & Framenau, Volker W., 2010, Systematic revision of Hoggicosa Roewer, 1960, the Australian ‘ bicolor’ group of wolf spiders (Araneae: Lycosidae), Zoological Journal of the Linnean Society 158 (1), pp. 83-123 : 96-97

publication ID	https://doi.org/ 10.1111/j.1096-3642.2009.00545.x
persistent identifier	https://treatment.plazi.org/id/EC1F510B-FF9F-6233-FF7D-10B2FD25AA4E
treatment provided by	Felipe
scientific name	Hoggicosa duracki
status	comb. nov.

Treatment

HOGGICOSA DURACKI ( MCKAY, 1975) View in CoL COMB. NOV.

( FIGS 6G, H View Figure 6 , 7B View Figure 7 , 16A–E View Figure 16 , 18 View Figure 18 )

Lycosa duracki McKay, 1975: 313–316 , fig. 2A–E; Brignoli, 1983: 450; McKay, 1985: 76.

Types: Holotype. ♀ from Western Australia: Old Argyle Downs Station (today submerged under Argyle Dam), Ord River , 16°12′S, 128°48′E, 23.x.1971, R. J. McKay, W. H. Butler, with young spiderlings ( WAM 74 View Materials /494). GoogleMaps

Paratypes. 1 ♂ and 2 ♀ s from same location as holotype: 5.x.1971 ( WAM 74 View Materials /495-7) GoogleMaps .

Other material examined: Six males and three females from five records (Appendix S1).

Diagnosis: Males can be distinguished from the similarly coloured H. snelli by a very short terminal apophysis ( Fig. 16A View Figure 16 ) and a large tegular apophysis, which has a ventral process with a bifurcate tip ( Fig. 6G, H View Figure 6 ). Both sexes can be distinguished from H. snelli by the plain cream venter which lacks the black stripe of H. snelli ( Fig. 4F View Figure 4 ).

Description: Male: Based on paratype. Dorsal shield of prosoma pale orange, covered in fine black and white setae. Sternum pale orange, labium orange-brown, both with scattered black setae. Chelicerae dark brown with white setae. Legs pale orange-yellow. Opisthosoma dorsally cream, cover of fine black setae with longer black bristles scattered throughout. Opisthosoma laterally cream, venter cream with white setae. Terminal apophysis of pedipalp very short, robust, and pointing retrolaterally ( Fig. 16A, B View Figure 16 ). Pars pendula thick and opaque, connected to embolus at embolus tip ( Fig. 7B View Figure 7 ). Large tegular apophysis with a long ventral process located basally and pointing strongly away from tip of tegular apophysis. Ventral process with a bifurcate tip and no continuous ridge to the apical point ( Fig. 6G, H View Figure 6 ).

Female: Based on holotype. Dorsal shield of prosoma pale orange-yellow with fine white setae. Sternum, labium, and chelicerae as male. Legs pale yellow. Opisthosoma dorsally cream, covered with white setae and scattered longer black bristles. Opisthosoma laterally cream, venter cream with two faint dark spots at anterior end. Epigyne with small anterior pockets, close to the median septum ( Fig. 16E View Figure 16 ).

Remarks: The epigyne of one of the female paratypes (WAM 74/496, Fig. 16C, D View Figure 16 ) is vastly different to that of the holotype ( Fig. 16E View Figure 16 ). Unfortunately, the epigyne of the second female paratype (WAM 74/497) is missing, but from McKay’s (1975: fig. 2E) figure of the ventral view it appears to match that of the holotype. This difference may indicate that the epigynes of H. duracki are highly variable. However, the elongated structure of the ventral process on the tegular apophysis of the male specimens appears unlikely to ‘match’ the holotype epigyne (see Zyuzin, 1993). The dimensions of the tegular apophysis fit better with that of the paratype epigyne figured here ( Fig. 16C View Figure 16 ). Therefore, the females of H. duracki may represent two species, but given the current lack of material, in particular a morphologically different male, we currently consider them as conspecific.

Measurements: ♂ paratype (♀ holotype): TL, 18.8 (19.4); PL, 9.4 (10.6); PW, 8.0 (8.0). Eyes: AME, 0.50 (0.62); ALE, 0.35 (0.38); PME, 1.15 (1.35); PLE, 0.81 (1.23). Sternum (length/width): 4.4/4.0 (4.9/3.8). Labium (length/width): 1.5/1.3 (1.5/1.5). OL, 9.4 (8.8); OW, 5.7 (6.2). Legs, lengths of segments (femur + patella/tibia + metatarsus + tarsus = total length): pedipalp, 4.4 + 4.3 + – + 3.8 = 12.5; I, 9.4 + 11.4 + 9.4 + 4.7 = 34.9; II, 9.1 + 10.8 + 9.4 + 4.7 = 34.0; III, 8.6 + 9.8 + 9.3 + 4.4 = 32.1; IV, 10.1 + 11.8 + 11.4 + 4.8 = 38.1 (pedipalp, 5.0 + 5.0 + – + 3.6 = 13.6; I, 8.2 + 10.2 + 6.2 + 3.4 = 28.0; II, 7.9 + 9.6 + 6.2 + 3.6 = 27.3; III, 7.5 + 8.8 + 6.2 + 3.8 = 26.3; IV, 8.8 + 10.6 + 8.1 + 4.4 = 31.9).

♂ (♀) (range, mean ± SD): TL, 15.7–18.8, 16.8 ± 1.3; PL , 7.9–9.4, 8.7 ± 0.7; PW, 6.1–8.0, 7.2 ± 0.8; N = 4 (TL, 19.4–19.8, 19.5 ± 0.2; PL, 9.5– 10.6, 10.0 ± 0.6; PW, 7.4–8.1, 7.8 ± 0.4; N = 3).

Natural history: Hoggicosa duracki have been collected from bare gravel slopes and ridges without vegetation in heavy clay-gravel. Burrows were 15–20 cm deep and up to 14 mm diameter with or without hinged doors ( McKay, 1973). Mature males and females have been collected in October and November. The holotype female was collected with young in October.

Distribution: Northern Western Australia ( Fig. 18 View Figure 18 ).