Storenosoma grayi, 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 : 19-20

Storenosoma grayi n.sp.

Figs 7a,e–f , 17a–d , 27b

Type material. HOLOTYPE ♂, “Scalloway”, Willowvale, near Gerrigong, NSW, 34°45'S 150°50'E, 24 Jun 1989, G. Wishart ( AMS KS31749 ) . PARATYPES: 1♂, 1♀, Macquarie Rd , Buckenbowra State Forest, NSW, 35°38'09"S 149°53'16"E, 16 Mar 1999, L. Wilkie, R. Harris & H. Smith ( AMS KS68199 ) .

Other material examined. NEW SOUTH WALES: 1♀, Badja Fire Trail, Badja State Forest , 36°07'30"S 149°31'37"E, 13 Mar 1999, J. Tarnawski & S. Lassau ( KS69903 ) . 1♀, same data ( KS69904 ) . 3♀, Boundary Fire Trail, Monga State Forest , 35°37'22"S 149°54'43"E, 15 Mar 1999, L. Wilkie, R. Harris & H. Smith ( KS69902 ) . 1♀, Burkes Rd, Badja State Forest , 36°10'33"S 149°31'58"E, 13 Mar 1999, J. Tarnawski & S. Lassau ( KS68201 ) . 1♀, Coondella Fire Trail, Deua National Park , 35°58'44"S 149°53'05"E, 11 Mar 1999, J. Tarnawski & S. Lassau ( KS69909 ) . 1♀, same data except 35°58'47"S 149°53'13"E, ( KS69910 ) . 1♀, Dampier Mt Fire Trail, Deua National Park , 35°59'09"S 149°42'32"E, 11 Mar 1999, J. Tarnawski & S. Lassau ( KS69907 ) . 2♀, same data except 35°58'26"S 149°41'20"E, ( KS69908 ) . 1♀, Macquarie Rd, Buckenbowra State Forest , 35°38'09"S 149°53'16"E, 16 Mar 1999, L. Wilkie, R. Harris & H. Smith ( KS69911 ) . 1♀, Peters Rd, Badja State Forest , 36°08'52"S 149°32'09"E, 13 Mar 1999, J. Tarnawski & S. Lassau ( KS69906 ) . 2♂, 5♀, Rocky Pic Rd, Tallaganda State Forest , 35°37'08"S 149°30'17"E, 15 Mar 1999, J. Tarnawski & S. Lassau ( KS69899 ) . 1♀, same data except 35°35'34"S 149°30'14"E, ( KS69900 ) . 1♂, 1♀, South Forest Way, Tallaganda State Forest , 35°42'50"S 149°32'20"E, 15 Mar 1999, J. Tarnawski & S. Lassau ( KS69901 ) . 1♀, Wiola Creek Fire Trail, Badja State Forest , 36°05'24"S 149°34'51"E, 13 Mar 1999, J. Tarnawski & S. Lassau ( KS69905 ) (all AMS) . 3♀, Clyde Mt. , 3 Mar 1968, J. Balderson . 1♂, 3♀, Clyde Mt. , 3 Mar 1970, S. Curtis . 7♂, 4♀, Clyde Mt. , 14 Apr 1970, E.F. Riek . 2♂, 1♀, Clyde Mt. , 15 Jul 1973, R.J. Kohout . 3♂, 2♀, Clyde Mt. , 35°33'S 149°57'E, 15 May 1984, R.B. Halliday & M.S. Harvey . 2♂, 2♀, Clyde Mt. , 4 Sep 1982, L.Hill . 2♂, 2♀, 2 km N of Monga , 18 Sep 1983, M.S. Harvey (all ANIC) .

Diagnosis. Male palp ( Figs 17a–b ) with low blunt tipped TA. MA with elongate proximal projection, curving prolaterally with blunt rounded tip and with short narrow prolateral projection. Embolus with bluntly pointed tip and sometimes with expanded section near base. Palpal patella with one dorsal spine, palpal tibia with one dorsal and one prolateral stout spine. Female epigynum ( Figs 17c–d ) with pronounced lateral teeth. Tarsal organ rod like, situated proximally to trichobothria.

Description. Male. Measurements: BL 6.25, CL 3.40, CW 2.50, PLE 0.35, PME 0.20 (AMS KS31749). Female. Measurements: BL 6.25, CL 3.20, CW 2.40, PLE 0.35, PME 0.20 (AMS KS68199). For morphological description see species diagnosis and generic description.

Etymology. The specific name is in honour of Dr M.R. Gray for his contributions to Australian arachnology.

Distribution. Known from south eastern New South Wales ( Fig. 27b ).

Remarks. This species is known from the type locality, near Gerringong, south to the forests west of Moruya. Males from the southern end of the range have a less prominent TA and the proximal projection of the MA is narrower and more curved.

Figures

Fig. 7. Tarsal organ and trichobothria. (a, e–f) Storenosoma grayi (KS69899): (a) tarsus leg I, (e) tarsal organ and trichobothrial base, (f) tarsal organ ventral. (b, g–h) Storenosoma altum (KS37226): (b) tarsus leg I, (g) tarsal organ and trichobothrial base, (h) tarsal organ lateral. (c, i) Storenosoma hoggi (K4097): (c) tarsus leg I, (i) tarsal organ and trichobothrial base. (d, j) Storenosoma bondi (KS18071): (d) tarsus leg I, (j) tarsal organ and trichobothrial base.

Fig. 17. Storenosoma grayi. (a–b) male palp (KS31749): (a) ventral; (b) RTA, retrolateral. (c–d) female genitalia (KS69899): (c) epigynum, ventral; (d) internal. Scale lines 0.25 mm.

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