Anomalosa, Framenau, Volker W., 2006

Framenau, Volker W., 2006, Revision of the Australian wolf spider genus Anomalosa Roewer, 1960 (Araneae: Lycosidae), Zootaxa 1304, pp. 1-20 : 11-15

Anomalosa oz sp. nov.

Figs 13–21

Anomalosa kochi (Simon) . Murphy et al. 2006: 586, table 1, figs 2–5 (misidentification).

Type material. Holotype: Male, Barmah State Forest [35°52’S, 145°07’E, Victoria, Australia], 12 November 2001, A. Ballinger, pitfall trap ( WAM T65677). Paratypes: 3 females, Lake Eppalock, Twin Rivers [36°55’34”S, 144°32’24”E, Victoria, Australia], 27 December 2003, V.W. Framenau, M.L. Thomas, waters edge of dam, cracked mud and rocks ( WAM T56076­7, T70050).

Other material examined. AUSTRALIA: New South Wales: 1 male, Belmore Station, Lower Murray­Darling Region, 33°30’50”S, 141°00’10”E (AM KS66606); 1 male, 1 female, Boonal Road, 100m S, 0.8km E junction with Moree­Boomi Road, 28°52’20”S, 149°40’52”E (AM KS71791­2); 3 males, 3 females, Boonal Road, 50m E, 5.2km E junction with Moree­Boomi Road, 28°50’26”S, 149°42’07”E (AM KS71793, KS71797­9); 2 males, 1 female, Castlereagh Highway, 5km S of entrance to Bairnkine Station, 29°49’10”S, 148°07’32”E (AM KS76663); 1 female, Cudgee, 28°16’S, 153°33’E (QM S61246 ); 1 female, Gwydir Highway, 300m N of Minnamurra Station turnoff, 29°41’51”S, 148°21’40”E (AM KS76671); 1 female, Marthaguy Creek on Oxley Highway, 14km W of Gilgandra, 31°40’44”S, 148°31’07”E (AM KS76619); 3 males, 2 females, Maynes Lagoon, E bank, Parkdale Station, 28°39’58”S, 150°20’16”E (AM KS76669, KS76678); 1 male, 1 female with eggsac, McIntyre River, 2.8km S of Boggabilla on Bruxner Highway, 28°37’41”S, 150°22’30”E (AM KS76727­8); 5 males, 3 females, Moppin­Aveymore Road, 400m S of junction at Dolgelly Bore, 28°53’26”S, 149°51’30”E (AM KS76664, KS76667, KS76676); 1 male, Narrabri, 24km NW, 30°13’S, 149°47’E ( ANIC); 1 male, Narran Lakes Reserve, 9.7km on access track from Narran Lakes Road, 29°43’57”S, 147°24’34”E (AM KS76675); 15 males, 5 females, Old Bruxner Highway to Toomelah, 38.3km SE of Newell Highway junction, 28°46’18”S, 150°41’06”E (AM KS76668, KS76672­3, KS76679, KS76725); 2 males, 1 female, Parkdale Station, S of access track to Maynes Lagoon, 28°40’03”S, 150°19’58”E (AM KS76666, KS76674); 11 females, Turners Dip, 31°01’S, 152°42’E (QM, S61257 ); 7 males, 1 female, Watercourse Road, 200m S of Allambie Bridge, 29°50’27”S, 149°25’49”E (AM KS76618, KS76620­1, KS76665, KS76670); 1 male, 2 females, Wolgan, 33°15’S, 150°10’E (QM S71684 ); 2 males, 1 female, Wyndabyne Station, 0.7km N of turnoff to Warren­Quambone Road, 31°08’12”S, 147°50’46”E (AM KS76677). South Australia: 1 male, 1 female, Slaney Creek, Chowilla, 33°56’S, 140°56’E ( SAM NN 682). Victoria: 8 males, 5 females, Barmah State Forest, 36°58’S, 145°57’E ( WAM T53569, T53710­1, T65678); 1 male, 2 females, Castle Creek, 36°36’S, 145°21’E (MV K8114); 1 female, Echuca, 36°08’S, 144°45’E (MV K7659); 1 female, 2 females with eggsac, Lake Eppalock, Twin Rivers, 36°55’34”S, 144°32’24”E ( WAM T56076­7); 42 males, 4 females, 5 juv., Reedy Lake Wildlife Reserve, 2.1km S along Reedy Lake Road from Davies Road, 36°43’38”S, 145°07’11”E (MV K9266, K9272­3, K9291­3, K9295­6); 1 female, Runnymede Flora Reserve, 1.6km N of Elmore­Clonbinane Road along Two Chain Road, 36°34’51”S, 144°43’59”E (MV K9281).

Description. Male (holotype from Barmah State Forest, Victoria; WAM T65677):

Prosoma, dorsal shield. Dorsal profile straight in lateral view; shiny dark brown to black; very indistinct darker radial pattern ( Fig. 13 ); narrow light median band; covered with sparse black setae, white setae in median band and between PE; black macrosetae around eyes, in particular PE.

Eyes. Row of AE procurved and shorter than row of PME.

Sternum. Shiny dark brown to black; black setae which are denser and longer towards margins.

Labium. Dark brown; front end truncated and white.

Chelicerae. Brown­black; covered with black setae which are densest and longest basolaterally; three promarginal teeth, the median largest; three retromarginal teeth of similar size.

Pedipalps ( Figs 15–18 ). Prolateral tegular lobe longer than the triangular, membranous tegular apophysis; embolus long and slender, in resting position sitting in cavity of terminal apophysis; terminal apophysis with two lateral tips ( Fig. 18 ).

Opisthosoma. Very dark grey; light median longitudinal band with a cover of white setae; otherwise sparse black setae ( Fig. 13 ). Venter grey, slightly lighter than dorsally, covered with silver­grey setae. Spinnerets black.

Legs. Leg formula VI>I>II>III; coxae distally yellow­brown, femora black, femora II–IV with basal yellow annulation that increases in width from leg II–III; tibiae brown with central light annulation; metatarsi and tarsi brown. Spination of leg I: femur: 2 dorsal, 1 apicoprolateral; patella: 1 apicodorsal; tibia: 2 ventral pairs, 1 retrolateral; metatarsus: 3 ventral pairs.

Female (paratype from Lake Eppalock, Victoria; WAM T70050):

Prosoma, eyes, labium, sternum and chelicerae. As male.

Opisthosoma. As male, but median band very faint ( Fig. 14 ).

Epigyne, ventral view ( Fig. 19 ). Simple sclerotised plate with a posterior incision.

Epigyne, dorsal view ( Fig. 20 ). Spermathecae large, ovoid; copulatory ducts not visible in dorsal view.

Legs. Leg formula IV>I>III>II; colouration as male, but with second annulation on femora II–IV. Spination of leg I: as male.

Measurements. Male holotype, WAM T65677) (female paratype, WAM T70050): TL 5.56 (6.56), PL 2.59 (2.82), PW 1.73 (1.91). Eyes: AME 0.09 (0.09), ALE 0.07 (0.08), PME 0.19 (0.19), PLE 0.17 (0.17). Row of eyes: AE 0.43 (0.48), PME 0.46 (0.49), PLE 0.63 (0.69). Sternum (length/width) 1.30/1.11 (1.37/1.22). Labium (length/width) 0.30/ 0.33 (0.32/0.39). OL 2.84 (3.28), OW 1.48 (1.98). Legs: Lengths of segments (femur + patella/tibia + metatarsus + tarsus = total length): Pedipalp s 0.88 + 1.07 + ­ + 0.76 = 2.71, I 1.98 + 2.36 + 1.45 + 1.14 = 6.93, II 1.75 + 2.13 + 1.41 + 1.07 = 6.36, III 1.75 + 2.06 + 1.68 + 0.99 = 5.48, IV 2.48 + 2.97 + 2.44 + 1.29 = 9.18 (Pedipalp 1.07 + 1.07 + ­ + 0.91 = 3.05, I 2.21 + 2.67 + 1.68 + 1.22 = 7.78, II 2.13 + 2.36 + 1.56 + 1.07 = 7.12(?), III 2.13 + 2.29 + 1.75 + 1.07 = 7.24, IV 2.90 + 3.43 + 2.74 + 1.30 = 10.37).

Variation. Males (females) (range, mean ± s.d.): TL 4.57 – 5.80, 5.23 ± 0.35; PL 2.47 – 3.09, 2.74 ± 0.17; PW 1.61– 2.10, 1.78 ± 0.13; n = 12 (TL 4.82 – 6.79, 5.71 ± 0.50; PL 2.22 – 2.96, 2.63 ± 0.21; PW 1.61– 1.98, 1.79 ± 0.11; n = 12).

Distribution. South­eastern Australia, including New South Wales, South Australia and Victoria ( Fig. 21 ).

Life history and habitat preferences. Anomalosa oz sp. nov. appears to prefer similar habitats to A. kochi , such as creek banks and the borders of lakes and dams. For example, I have caught this species, including females carrying eggsacs, running in cracked mud with rocks near the water of Lake Eppalock in Victoria. Other habitat descriptions include grassy areas and open woodland. Anomalosa oz sp. nov. was frequently caught in pitfall traps during a survey of Victorian Box­Ironbark woodlands (E ucalyptus microcarpa, E. polyanthmos, E. melliodora, E. goniocalyx, E. sideroxylon, E. tricarpa) by the Museum Victoria. One record from Castle Creek in Victoria (MV K8114) supports at least temporary web­building behaviour, since the spiders were caught in sheetwebs in an ephemeral wetland.

Most spiders, males and females, where caught in pitfall traps exposed in November and December. Occasional records are from February, April and August.

Figures

FIGURE 15. Male pedipalp (SEM) of Anomalosa oz sp. nov. from Barmah State Forest, Victoria, Australia (WAM T 53569), ventral view.

FIGURES 16 – 20. Anomalosa oz sp. nov., male holotype (WAM T 65677) from Barmah State Forest, Victoria, Australia, and female paratype (WAM T 70050) from Lake Eppalock, Victoria, Australia. 16 – 17 Left male pedipalp (16 ventral, 17 retrolateral view); 18 Apical part of bulbus, ventral view. 19 – 20 Female epigyne (19 ventral, 20 dorsal view). Scale bar: 16 – 17, 1.30 mm; 18, 0.75 mm; 19 – 20, 0.30 mm.

FIGURE 21. Records of Anomalosa oz sp. nov. in Australia.

FIGURES 13 – 14. Anomalosa oz sp. nov. 13 Male (WAM T 65678) from Barmah State Forest, Victoria, Australia; 14 Female paratype (WAM T 70050) from Lake Eppalock, Victoria, Australia. Total length male 5.60 mm, female 6.56 mm.