Therlinya horsemanae, Gray & Smith, 2002

Gray, Michael R. & Smith, Helen M., 2002, Therlinya, a new genus of spiders from eastern Australia (Araneae: Amaurobioidea), Records of the Australian Museum 54 (3), pp. 293-293 : 303-304

Therlinya horsemanae n.sp.

Figs. 8a–f , 12

Type material. AUSTRALIA: QUEENSLAND —H OLOTYPE: Ƌ, KS58196 ( AMS), Bulburin Forestry Nursery, NW of Bundaberg , 24°31'S 151°29'E , 22 Mar. 1975, M. R. Gray & C. Horseman, sheet webs on roadside bank. PARATYPES: ♀, KS58199 , data as for holotype; ♀, KS58197, Ƌ, KS58198, ♀ KS71038 , data as for holotype, except 21 Mar. 1975; Ƌ, KS69652, ♀, KS34798, Bulburin Forestry Area , 24°34'S

151°29'E, 22 Mar. 1975, M. R. Gray & C. Horseman, 580 m, bank beside road; Ƌ, QM S45529, data as for holotype .

Diagnosis. CL 2.53–3.67. Separated from other species by possession of a short, broad scape, widely truncated at level of epigastric groove; and by the slender, apically pointed, distal conductor.

Male (holotype). BL 5.96, CL 2.78 (2.53–2.98), CW 1.92, CapW 1.18, EGW 0.82, LL 0.41, LW 0.39, SL 1.31, SW 1.20. Legs: 1243 (I 14.82, II 13.55, III 10.53, IV 13.02); ratio tibia I length:CW = 1:0.50. Male palp: Fig. 8a,b . Cymbium with moderately developed retrolateral flange. Bulb subcircular with retrolaterally placed tegular lobe. Embolus origin basal. Stem of T-shaped conductor prolaterally directed, posterior limb placed prolaterally; tegular window placed basally. RTA weakly dorsad, visible in ventral view; RVTA moderately long, with beak-like apex turned toward upper side in ventral view.

Female (KS58197). BL 7.51, CL 3.67 (3.06–3.67), CW 2.29, CapW 1.73, EGW 1.08, LL 0.57, LW 0.55, SL 1.73, SW 1.45. Standard colour pattern. Legs: 1423 (I 13.55, II 11.47, III 9.47, IV 11.84); ratio tibia I length:CW = 1:0.66. Epigynum: Fig. 8c–e . Scape short and broad, not extended beyond epigastric groove; in side view distoventral scape protuberant; epigynal fossae narrow, oriented horizontally. Internal genitalia: Fig. 8f .

Distribution. Recorded only from the type locality near Bundaberg, Queensland.

Etymology. The specific name is in recognition of Christine Horseman, former Technical Officer in Arachnology at the Australian Museum.

Figures

Figure 8. Therlinya horsemanae. a,b, male palp (holotype): a, ventral; b, retrolateral. c–f, epigynum (KS58197): c, ventral; d, lateral; e, posterior; f, dorsal—internal genitalia. Scale lines 0.5 mm: vertical, a,b; horizontal, c–f.

Figure 12. Distribution of Therlinya species:northern New South Wales and southeast Queensland. A T. wiangaree, Δ T. vexillum, * T. horsemanae, O T. ballata, Z T. bellinger.