Revision of the new Australasian orb-weaving spider genus Salsa (Araneae, Araneidae) Author Framenau, Volker W. https://orcid.org/0000-0002-7724-3831 Harry Butler Institute, Murdoch University, 90 South St, Murdoch, Western Australia 6150, Australia & Department of Terrestrial Zoology, Western Australian Museum, Locked Bag 49, Welshpool DC, Western Australia, 6986, Australia & Zoological Museum Hamburg, Leibnitz Institute for the Analysis of Biodiversity Change (LIB), Centre for Taxonomy & Morphology, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany volker.framenau@murdoch.edu.au Author Castanheira, Pedro de S. https://orcid.org/0000-0002-0623-1622 Harry Butler Institute, Murdoch University, 90 South St, Murdoch, Western Australia 6150, Australia text ZooKeys 2022 2022-05-20 1102 107 148 http://dx.doi.org/10.3897/zookeys.1102.82388 journal article http://dx.doi.org/10.3897/zookeys.1102.82388 1313-2970-1102-107 BCA0CCE5141D46DA9D650DCA6B74DE69 77978D6128585504B99149B61692999F Salsa rueda sp. nov. Figs 1B , 3A-D , 5E , 19A-D , 20A-E , 21 Type specimen. Holotype male, Tubrabucca ( 31°52'S , 151°25'E , New South Wales, Australia), 19 January 1049, RTMP, ANB (MV K-14856). Other material examined. 6 males , 14 females (1 with egg sac), 1 juvenile (in 15 records) (see Suppl. material 1). Etymology. The specific epithet is a noun in apposition and refers to a specific Salsa dancing style, Rueda de Casino, in which changing pairs of dancers from a circle and dance moves are being called out by a single person. It is a noun in apposition. Figure 19. Salsa rueda sp. nov., male holotype (MV K-14856) A dorsal habitus B ventral habitus C left pedipalp, ventral view D left pedipalp, dorsal view. Scale bars: 2 mm ( A, B ); 0.2 mm ( C, D ). Diagnosis. Males of S. rueda sp. nov. are identified from all other species of the genus by the highly elongated median apophysis of the pedipalp and the enlarged basal, curved prong on the terminal apophysis (Figs 3A-C , 19C ). Females can be distinguished from all other species by shape of the epigyne base, which is much longer than wide and has a central longitudinal ridge (Fig. 20A ). Description. Male (based on holotype, MV K-14856). Total length 6.1. Carapace 3.3 long, 2.6 wide, brown, slightly paler in cephalic area and posteriorly (Fig. 19A ). Eye diameter AME 0.16, ALE 0.14, PME 0.09, PLE 0.09; row of eyes: AME 0.47, PME 0.43, PLE 1.37. Chelicerae orange-brown; with four promarginal teeth (basal and apical largest) and three retromarginal teeth (basal largest). Legs shades of brown, femora basally yellow-brown in legs II, III and IV (Fig. 19A, B ). Leg formula I> II> IV> III; length of segments (femur + patella + tibia + metatarsus + tarsus = total length): I - 4.5 + 1.5 + 2.8 + 2.6 + 1.0 = 12.4, II - 3.0 + 1.4 + 2.0 + 2.4 + 0.9 = 9.7, III - 1.7 + 0.9 + 1.2 + 1.2 + 0.6 = 5.6, IV - 2.6 + 1.1 + 1.8 + 2.2 + 0.8 = 8.5. Labium 0.36 long, 0.56, brown; endites brown (Fig. 19B ). Sternum 1.5 long, 1.2 wide, dark brown (Fig. 19B ). Abdomen 2.7 long, 2.6 wide, dorsal folium uniformly olive-grey bordered by broad wavy pale bands (Fig. 19A ); venter dark olive-grey with two ovoid lateral white patches (Fig. 19B ). Pedipalp length of segments (femur + patella + tibia + cymbium = total length): 0.6 + 0.2 + 0.1 + 1.1 = 2.0; paracymbium slightly curved with conspicuous base (Figs 3A, B , 19D ); median apophysis bearing a rounded basal process, elongated C-shaped; basal arch with numerous tubercles (Figs 3A-D , 19C ); conductor lobe broad (Figs 3A-C , 19C ); terminal apophysis sub-rectangular with a curved, heavily sclerotised basal prong (Figs 3A-C , 19C ); conductor heavily sclerotised, spatulate (Figs 3A-C , 19C ); embolus strong and slightly sinuous (Figs 3A-C , 19C ). Figure 20. Salsa rueda sp. nov., female (AM KS.50201) A dorsal habitus B ventral habitus C epigyne, ventral view D epigyne, lateral view E epigyne, posterior view. Scale bars: 2 mm ( A, B ); 0.1 mm ( C-E ). Female (based on AM KS.50201): Total length 10.5. Carapace 4.2 long, 3.5 wide; reddish brown, slightly paler in cephalic area and posteriorly, covered by white setae specifically in cephalic area (Fig. 20A ). Eye diameter AME 0.18, ALE 0.16, PME 0.13, PLE 0.11; row of eyes: AME 0.54, PME 0.52, PLE 2.18. Chelicerae reddish brown, four promarginal teeth (apical and second basal largest) and three retromarginal teeth (basal largest). Legs orange-brown (Fig. 20A, B ). Pedipalp length of segments (femur + patella + tibia + tarsus = total length): 1.1 + 0.4 + 0.7 + 1.3 = 3.5. Leg formula I> II> IV> III; length of segments (femur + patella + tibia + metatarsus + tarsus = total length): I - 4.0 + 1.7 + 3.5 + 3.3 + 1.2 = 13.7, II - 3.7 + 1.6 + 2.8 + 2.9 + 1.1 = 12.1, III - 2.5 + 1.1 + 1.4 + 1.5 + 0.8 = 7.3, IV - 3.5 + 1.6 + 2.2 + 2.6 + 1.0 = 10.9. Labium 0.58 long, 0.86 wide, dark brown; endites dark brown (Fig. 20B ). Sternum 1.8 long, 1.6 wide, dark reddish brown (Fig. 20B ). Abdomen 6.0 long, 6.0 wide; dorsum beige with indistinct darker folium pattern (Fig. 20A ); venter black and laterally with elongate white patches and pale transverse band behind epigastric furrow (Fig. 20B ). Epigyne much longer than wide; atrium with central elevated section and a transverse ridge anteriorly (Fig. 20C ); scape shorter than half the length of epigyne base (Fig. 20C, D ); central division a conspicuous narrow ridge (Fig. 20E ). Spermathecae rounded and located on the basis of the genitalia, separated by the width of the median ridge (Fig. 5E ). Variation. Total length males 6.0-6.8 ( n = 5); females 7.2-10.5 ( n = 4). The colour variations in S. rueda sp. nov. are probably the most uniform with the patterns in the folium often little expressed (Figs 19A , 20A ). There was no evidence of scape breakage in any of the females examined by us. Life history and habitat preferences. Specimens were collected in December and January, with a single female from March, indicating this species to be summer-mature. There was no habitat information on any of the specimen labels. Distribution. Salsa rueda sp. nov. were found in the Australian Capital Territory, New South Wales, Victoria, and Tasmania (Fig. 21 ).