Illawarra, Gray, 2010

Gray, Michael R., 2010, A Revision of the Australian Funnel-web Spiders (Hexathelidae: Atracinae), Records of the Australian Museum 62 (3), pp. 285-392 : 309

Illawarra n.gen.

Type species Illawarra wisharti new species.

Diagnosis. Differs from other atracine species as follows—in males, by having broad midventral spine row on male tarsi

I–IV ( Fig. 3B ); in females, by having a robust, aspinose leg

I with metatarsus partially fused to tarsus and tarsal claws enlarged.

Description. With the characters of the Atracinae . Colour light to dark brown with distinct abdominal chevrons.

Carapace longer than wide; relatively low with caput weakly raised ( CH /CW 0.37) and narrow frontally (CFW/CL 0.54).

Cheliceral paturon less robust than in other genera. (Figs.

16A,B; 17B,C). Cheliceral groove narrow, lateral margins Figure 15. Collection records for Illawarra wisharti . parallel; central tooth row short; basal; prolateral tooth row may be incomplete; retrolateral row complete (Fig. 16C). Other material examined. New South Wales (males): AMS KS921 , Willowvale , 4 km W. of Gerringong , 11 May 1977, G. Wishart; AMS Labium short (LL/LW 0.70) (Fig. 16D), cuspule numbers KS922 ,Willowvale, 4 km W.of Gerringong, 20 May 1977, G.Wishart; AMS low to moderate (85–154). Apical segment of posterior KS1448 , Willowvale, 4 km W. of Gerringong, 5 April 1978, G. Wishart; lateral spinnerets relatively short. Leg I more robust than AMS KS918 , Ulladulla, Ulladulla Ambulance Station ; AMS KS10796 , other legs, especially in females; female leg I without spines, Unanderra, January 1983, M. Senior .

tarsal claws enlarged and metatarsus thickened proximally

(wedge-shaped) and partially fused to the tarsus ( Fig. 17H,I ). Diagnosis. CL 6.77–10.13 (male). Male tarsi I–IV strongly Male tarsi highly spinose (43–93 spines), with two lateral spinose (tarsus I with 43–93 spines), with a middle ventral spine rows and a full midventral spine row ( Fig. 3B ). Female spine row as well as lateral ventral rows ( Fig. 3B ). Female tarsi with few spines. Male femora I, II with slender dorsal leg I robust, aspinose; metatarsus I thickened proximally and spines (Fig. 16F,H); legs I, II without apophyses; tibia I, II partially fused with tarsus I, tarsal claws enlarged ( Fig. 17H,I ). and metatarsus I, II spinose, spines slender and scattered

( Fig. 18D–J ). Male palpal patella a little wider than femur.

Palpal bulb with a broad tegular area; groove between tegulum and subtegulum sometimes wide, exposing middle haematodocha.; embolus short, wide. (Figs. 16I, 18B).

Female spermathecae two very short, distally broad sacs

( Fig. 17E ).

Included species. Illawarra wisharti n.sp.

Distribution. The Illawarra region of southern New South

Wales.

Figures

Figure 3. (A) Hadronyche infensa, ventral tarsus II, scopula and lateral spine rows; (B) Illawarra

Figure 17. Illawarra wisharti, female: (A) sternum, labium

Figure 18. Illawarra wisharti, male (A,D–J, AMS KS15748; B,C, AMS KS5356):(A) palp, prolateral; (B) bulb; (C) embolus, distal; (D,E) distal patella and tibia I—D, ventral, E, prolateral; (F) metatarsus I, ventral; (G,H) distal patella and tibia II—G, ventral, H, prolateral; (I,J) metatarsus II—I, ventral, J, prolateral. Scale lines: 0.3 mm, except A 0.2 mm, and B 1.0 mm.