A Revision and Cladistic Analysis of the Genus Corasoides Butler (Araneae: Desidae) with Descriptions of Nine New Species Author Humphrey, Margaret text Records of the Australian Museum 2017 2017-05-31 69 1 15 64 http://dx.doi.org/10.3853/j.2201-4349.69.2017.1671 journal article 10.3853/j.2201-4349.69.2017.1671 2201-4349 5237569 Corasoides motumae sp. nov. Figs 17 , 18 , 19b–d Holotype ♂ , Clyde Mountain , NSW [ New South Wales ], 35°33'S 150°00'E , 30 March 1999 , Helen Smith, M . Humphrey, KS .71838 ( AM ) . Paratypes as follows: 1♀ , data as for holotype ; 3♂♂ , 1♀ , Monga, NSW, 35°34'S 149°56'E , 30 March 1999 , H. Smith , M. Humphrey , KS.71839 ( AM ) . Other material examined . 2♀♀ , data as for Monga paratypes ; 2♀♀ (remains, including 2 complete abdomens, from electrophoretic work), same data as holotype ( AM ). Diagnosis . Chelicerae and head region dark, almost black. No differentiation in colour between ocular region and rest of head. Cymbium relatively short for genus, less than 2.5 times the diameter of the bulb. Distinguished from C. australis by blunt conductor tip ( Figs 17b , 19b ), ventral apophysis lobe-like and completely sclerotized ( Fig. 17b,e ), and stalk of scape with bulbous portion anterior to genital openings ( Fig. 18b ) Description . Medium to large spider. Carapace . Head region and chelicerae almost black, indiscernible from colouring surrounding eyes ( Figs 17d , 18a,e ). Dark colour, but less intense, extending into the thoracic region of the dorsal carapace. Abdomen . Basic pattern but indistinct. Central pale stripe very wide and largely obscuring rows of spots. Male ( Figs 17 , 18a,c,e,g , 19b–d ). CL 7.4 (6.9), CW 5.2 (2.5), AL 6.3, AW 3.8, HW 3.4, EpGW 1.8, MOQL 0.73, MOQAW 0.64, MOQPW 0.85, SL 3.9, SW 3.0, ML 2.7, MW 1.3, LL 1.5, LW 1.1, ChelL 3.7 (3.3), ChelW 1.5 (1.3), clypeus height 0.5. Cephalothorax . Sternum longer than wide, distinct point posteriorly with bunch of hairs at point ( Fig. 18c ). Labium as long as wide, notched basally, slightly rebordered. Chelicerae . Cheliceral bristles reduced, not crossing in front ( Fig. 17d ). Teeth retromarginal 5(6), promarginal 3(4). Transverse ridges present between margins. Fangs with serrations. Leg lengths: I II III IV Palp femur 8.3 7.3 6.3 8.0 5.5 patella 3.2 2.5 2.1 2.1 2.1 tibia 9.3 6.5 4.8 7.4 2.1 metatarsus 8.5 6.4 6.9 9.0 — tarsus 3.3 2.1 2.0 2.3 4.4 total 32.5 24.8 22.0 28.8 14.1 Spination . Leg I: femur d1,1,3,1,1,1,1,3; tibia v2,1,2,2; metatarsus v1,1,2. Leg II: femur d3,1,3,1,1,1,1,3; tibia d1,1 p1; metatarsus d1,1 v2,2,2. Leg III: femur d3,3,3,3,3; tibia d1,2,3 v2,2,2; metatarsus d1,2,2,2, v2,2,2. Leg IV: femur d1,2,1,1,1,1,1,3; tibia d1,1,1 v2,2,2 p1 r1; metatarsus d3,3,3,3,3 v2,1,1,2,2. Palp: femur d1,1,2,3; tarsus several. Row of 7 trichobothria on 1st tarsus. Male palp . Digitiform portion of cymbium relatively short for this genus—cymbium length less than 2.5 times diameter of bulb. Ventral apophysis lobe-like, not enclosing any intersegmental membrane. Retrolateral apophysis broad, flattened, curving retrolaterally, with terminal spine-like portion pointed back towards bulb ( Figs 17e , 19c ). Origin of embolus basal. Conductor roughly T-shaped, covering most of bulb. Conductor tip twisted, with ridges ( Figs 17a–c , 19b,d ). Single row of 5 trichobothria on cymbium. Female ( Figs 18b,d,f ), similar to male. CL 7.4 (7.9), CW 5.1 (5.0), AL 7.6, AW 5.1, HW 3.8, EpGW 1.8, MOQL 0.77, MOQAW 0.65, MOQPW 0.86, SL 3.6, SW 2.9, ML 2.4, MW 1.5, LL 1.4, LW 1.3, ChelL 4.0 (3.9), ChelW 1.5 (1.4), clypeus height 0.4. Chelicerae . Teeth as for male. Leg lengths: I II III IV Palp femur 7.5 8.6 6.3 7.9 3.3 patella 2.5 2.6 2.3 2.4 1.3 tibia 7.4 5.1 4.6 6.9 2.1 metatarsus 7.0 6.3 5.1 7.1 — tarsus 2.8 2.1 2.3 2.5 3.3 total 27.1 22.8 20.5 26.8 9.9 Spination . Leg I: femur d1,1,3,1,3,3; tibia v2,2,1,1,2; metatarsus v2,2,2. Leg II: femur d3,4,3,3,3; tibia d1,1,1 v2,2,2 p1,1; metatarsus d1,1 v2,2,2. Leg III: femur d3,3,2,2,1,3,3; tibia d1 v2,2,2 p1,1; metatarsus d3,3,2,2 v1,1,2,3; Leg IV: femur d3,3,3,3,3; tibia d1,1,1 v2,2,2 p1 r1,1; metatarsus: d3,3,3,3,3, v1,1,1,1,2. Palp: femur d1,1,2,3; tarsus several. Trichobothria on 1st tarsus: single row of 6–7 decreasing in length proximally. Abdomen . Anterior lateral spinnerets with tail of small spigots. Epigyne ( Fig. 18b ). Length almost equal to width. No ridges or beaks. Stalk of scape bulbous posteriorly, narrow, less than half the diameter of the genital atria. Lateral extension of scape short extending to halfway across apparent genital atrium area. Origins of insemination ducts almost posterior. Insemination ducts very weakly convoluted (1 bend) ( Fig. 18d,f ). No diverticula. Spermathecae touching (Fig, 18d). Habitat . Cool temperate rainforest and wet sclerophyll forest. Webs commonly found in crevices in dead tree trunks, fallen timber and rubble. Some webs in the wet sclerophyll descended into crevices in the ground or leaf litter. Web heights from ground level to 1.5 m . Distribution . Monga and Clyde Mountain, southeastern New South Wales ( Fig. 18g ). Etymology . Named after Dr Helen Motum Smith who collected the first specimens known to me.