Tetralycosa arabanae Framenau, Gotch & Austin, 2006

Framenau, Volker W. & Hudson, Peter, 2017, Taxonomy, systematics and biology of the Australian halotolerant wolf spider genus Tetralycosa (Araneae: Lycosidae: Artoriinae), European Journal of Taxonomy 335, pp. 1-72 : 23-25

Tetralycosa arabanae Framenau, Gotch & Austin, 2006

Figs 5 E–H; 7A–E; 9

Tetralycosa arabanae Framenau, Gotch & Austin 2006: 24–25 , figs 48–57.

Diagnosis

The somatic morphology and colouration of T. arabanae is very similar to that of T. caudex sp. nov. Both species are very light yellow-brown without any distinct colour patterns. Whereas the epigyne of T. arabanae has two separate anterior hoods, the anterior margin of T. caudex sp. nov. is continuous. The male of T. caudex sp. nov. is not known.

Type material

Holotype

AUSTRALIA: ♂, South Australia, Jersey Spring , 29°20′ S 136°35′ E, 18 Jul. 1996, D. Niejalke leg. ( SAM NN13871 ) (examined).

Paratypes

AUSTRALIA: 1 ♂, 2 juvs, same data as holotype ( SAM NN13872) (examined); 7 ♂♂, 2 ♀♀, 1 ♀ with 41 spiderlings, South Australia, Jersey Spring, 29°21′ S, 136°45′ E, 12 Nov. 1997, K.-J. Lamb leg. ( SAM NN13887–96) (examined).

Other material examined

AUSTRALIA, South Australia: 1 ♂, Blanche Cup Mound Springs, 29°27′ S, 136°52′ E ( SAM NN13884); 1 ♂, Buttercup Mound Spring, 29°29′ S, 136°54′ E ( SAM NN13885); 1 ♀, Coongie Lake, 27°12′ S, 140°10′ E ( SAM NN13869); 4 ♂♂, 1 ♀, Elizabeth Springs (North A), 29°21′ S, 136°46′ E ( SAM NN13878–82); 1 ♀, Elizabeth Springs (North B), 29°21′ S, 136°46′ E ( SAM NN13883); 1 ♀, 1 juv., Elizabeth Springs Bore, 29°21′ S, 136°46′ E ( SAM NN13870); 2 ♂♂, 4 juvs, Francis Swamp mound spring, 29°06′ S, 136°18′ E ( SAM NN13876–7); 1 ♀ with 67 spiderlings, Gosse East Spring, 29°28′ S, 137°21′ E ( SAM NN13886); 2 ♀♀, Gosse Springs, 29°28′ S, 137°18′ E ( WAM T47297); 1 ♀, 1 juv., Hermit Hill Springs, 29°34′ S, 137°25′ E ( SAM NN13873); 20 ♂♂, 10 ♀♀, 1 juv., Horse East Spring, 29°29′ S, 136°55′ E ( SAM NN13897–916); 2 ♀♀, Horse Springs, 29°29′ S, 136°55′ E ( WAM T47299); 1 ♀, Lake Frome, 31°00′ S, 139°46′ E ( SAM NN13867); 1 ♀, Lake Hart, 31°14′ S, 136°22′ E ( SAM NN13933); 1 ♀, 1 juv., Lake Hope Channel, 3.9 km S Lake Appadare, 28°15′ S, 139°12′ E ( SAM NN13868); 2 ♂♂, 1 ♀, 1 juv., McLachlan Springs, 29°28′ S, 137°18′ E ( WAM T47298); 1 ♀, Morris Creek Bore, 29°26′ S, 137°34′ E ( WAM T47296); 1 ♂, Morris Creek Bore, 29°28′ S, 137°19′ E ( WAM T47295); 1 ♂, 4 juvs, Old Finnis Spring, 29°45′ S, 137°31′ E ( SAM NN13874); 1 ♂, Smith Spring, 29°30′ S, 137°22′ E ( SAM NN13875); 5 ♂♂, 2 ♀♀, 5 juvs, Tregalana Salt Lake, 32°51′ S, 137°38′ E ( SAM NN13862–4, NN13929–32).

Description

Tetralycosa arabanae was described recently in detail ( Framenau et al. 2006). Microscopic photographs of males and females ( Fig. 5 E–H) and drawings of male and female genitalia ( Fig. 7 A–E) are depicted here to illustrate diagnostic features of this species.

Life history and habitat preference

Tetralycosa arabanae was mainly collected at South Australian artesian springs ( Framenau et al. 2006). Here, it inhabits the lower parts of the spring tail and the ephemeral wet regions beyond the permanent vegetated wetland. It has also been found near semi-permanent saline waterholes near Hermit Hill Springs. Most females and males have been found between July and December; however, there is also some adult activity in April and May.

Distribution

Tetralycosa arabanae can mainly be found at springs fed by the Great Artesian Basin in South Australia ( Fig. 9 ).

Figures

Fig. 5. Tetralycosa Roewer, 1960, microscopic photographs showing dorsal and ventral views. A–B. T. oraria (L. Koch, 1876), ♂ (WAM T93541). C–D. T. oraria (L. Koch, 1876), ♀ (WAM T93944). E–F. T. arabanae (Framenau, Gotch & Austin, 2006), ♂ (WAM T47298). G–H. T. arabanae (Framenau, Gotch & Austin, 2006), ♀ (WAM T47298). I–J. T. caudex sp. nov., ♀ (WAM T55576). Scale bars: A–J = 2.00 mm.

Fig. 7. Tetralycosa arabanae (Framenau, Gotch & Austin, 2006), ♂, paratype (SAM NN13887) and ♀ (WAM T47297, T47296). A–B. Left male pedipalp, ventral and retrolateral view. C. Left male pedipalp, palea section of bulbus, ventral view. D. Female epigyne, ventral view (WAM T47297). E. Female epigyne, dorsal view (WAM T47296). Scale bar: A–B = 1.02 mm; C = 0.32 mm; D–E = 1.00.

Fig. 9. Tetralycosa oraria (L. Koch, 1876), T. arabanae (Framenau, Gotch &Austin, 1976) and T. caudex sp. nov., distribution records in Australia.