Storenosoma tasmaniensis, Milledge, 2011

Milledge, G. A., 2011, A Revision of Storenosoma Hogg and Description of a New Genus, Oztira (Araneae: Amaurobiidae), Records of the Australian Museum 63 (1), pp. 1-32 : 25

Storenosoma tasmaniensis , n.sp.

Figs 8c,g , 23a–b , 27a

Type material. HOLOTYPE ♂, Plateau Rd, Tasman Penninsula , 43°02'48"S 147°54'30"E, 25 Feb 1990, G. Cassis & I. Pegler ( AMS KS69668 ) . PARATYPES: 2♂, 2♀, same data as holotype ( AMS KS69666 ) . 1♀, Sandspit River , 42°42'S 147°51'E, 25 Feb 1990, G. Cassis ( AMS KS69667 ) .

Other material examined. TASMANIA: 1♀, Cascades , 6 Nov 1943 V.V. Hickman ( S 46469 ) : 1♀, Mt Wellington, 23 Jul 1943, V.V. Hickman ( S 46467 ) . 1♀, same data ( S 46468 ) (all QM) . 6♂, Warra , 43°05'S 146°41'E, site 663, 25 Sep 1997, D. Bashford . 4♂ 1♀, same data except site 338 . 2♂ 1♀, same data except site 147 . 7♂ 2♀, same data except site 254 . 2♂, same data except site 59 . 2♂, same data except site 60 . 1♂, same data except site 70, 7 Nov 1997 . 2♂ 1♀, same data except site 226 . 4♂ 1♀, same data except site 254 . 4♂ 1♀, same data except site 147 . 2♂, same data except site 338 . 2♂, same data except site 59 . 2♂, same data except site 60 . 3♂, same data except site 663. (all QVM) . 1♀, ca 6 km SE of Tombs Lake , 42°16'19"S 147°51'36"E, 1 Jun 1972, J.L. Hickman ( KS 107523) . 1♂ 1♀, same data ( KS 107559) . 1♂, same data ( KS 107561) (all AMS) .

Diagnosis. Male palp ( Figs 23a–b ) with TA reduced to stout hump below base of embolus. MA compact with slender prolateral projection but no other pronounced projections. Embolus with basal expansion and pointed tip. Palpal patella with one dorsal spine, palpal tibia without spines. Tarsal organ capsulate ( Fig. 8c,g ), situated distally of trichobothria.

Description. Male. Measurements: BL 6.20, CL 3.20, CW 2.65, PLE 0.36, PME 0.26 (AMS KS69668). Female. Measurements: BL 8.35, CL 4.10, CW 2.85, PLE 0.36, PME 0.26, (AMS KS69666). For morphological description see species diagnosis and generic description.

Etymology. The specific name refers to the type locality.

Distribution. Known only from southeastern Tasmania ( Fig. 27a ).

Remarks. The female specimens attributed to this species all have the epigynum plugged making the morphology unclear. For this reason it has not been illustrated. Since no other species of Storenosoma is known from Tasmania, it is presumed they are S. tasmaniensis .

Figures

Fig. 8. Tarsal organ and trichobothria. (a, e) Storenosoma forsteri (KS52409): (a) tarsus leg I, (e) tarsal organ and trichobothrial base. (b, f) Storenosoma smithae (ANIC, NSW, Mt Clarke, Mar 2004): (b) tarsus leg I, (f) tarsal organ and trichobothrial base. (c, g) Storenosoma tasmaniensis (TMG147): (c) tarsus leg I, (g) tarsal organ and trichobothrial base. (d, h) Storenosoma victoria (K4277): (d) tarsus leg I, (h) tarsal organ and trichobothrial base.

Fig. 23. Storenosoma tasmaniensis. (a–b) male palp (KS69666):(a) ventral; (b) RTA, retrolateral. Scale line 0.25 mm.

Fig. 27. Distribution of Storenosoma spp.: (a) • S. tasmaniensis,  S. hoggi,  S. forsteri, * S. supernum. (b)  S. victoria,