A Revision of the Malagasy Crack-Leg Spiders of the Genus Uduba Simon, 1880 (Araneae, Udubidae), with Description of 35 New Species from Madagascar Author Griswold, Charles Arachnology Lab, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA. E-mail: cgriswold @ calacademy. org; dubick @ calacademy. org (https: // orcid. org / 0000 - 0002 - 3813 - 8174); Author Ubick, Darrell Arachnology Lab, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA. E-mail: cgriswold @ calacademy. org; dubick @ calacademy. org (https: // orcid. org / 0000 - 0002 - 3813 - 8174); Author Ledford, Joel Department of Plant Biology, University of California, Davis, Davis, CA 95616 - 5270, USA. E-mail: jmledford @ ucdavis. edu; Author Polotow, Daniele Departamento de Ecologia e Biologia Evolutiva (DEBE), Universidade Federal de São Carlos (UFSCar), Campus São Paulo, Rodovia Washington Luís, Km 235, CEP 13565 - 905 São Carlos, SP, Brazil. E-mail: danielepolotow @ gmail. com; https: // orcid. org / 0000 - 0002 - 1069 - 1808 text Proceedings of the California Academy of Sciences 2022 2022-12-15 67 1 193 journal article 10.5281/zenodo.13158554 0068-547X 13158554 74E0D22E-9890-4FF0-80AB-8FCBBA976B2F Uduba salegy , new species Figures 7 E , 9 D , 11 A , 60 A–C , 74 A, B , Maps 2, 13. Type material. Holotype male ( CASENT9006044 ) from montane rainforest at 1000m elevation in Parc National Montagne d’Ambre , Antsiranana Province , Madagascar , collected 21–30 November 1993 by Jonathan Coddington , deposited in the USNM . Paratypes , two females ( CASENT9006045 ), also from Parc National Montagne d’Ambre , Antsiranana Province , Madagascar , collected 12 August 1992 by Vince and Barbara Roth , deposited in CAS . Etymology. The species epithet, Salegy , is a popular music genre from Madagascar that has its home in the north of Madagascar ; a noun in apposition. Diagnosis. Uduba salegy are members of Group I.a, the Uduba dahli group ( Map 13 ) of Group I, the Epigynal atrium group. They are cribellate, with large, divided cribellum or vestige. Males can be distinguished from those of other Uduba with a screw-shaped TA3 by having the TA3 J-shaped and extending apicad of TA2, MA small, simple ( Figs. 60 A–C ). The females can be distinguished from those of other Uduba of the of Group I, the Epigynal atrium group, which have an epigynal plate with the median lobe surrounded by a depressed atrium, by having the median lobe end well anteriad of epigastric furrow, with the posterior margin of atrium entire, forming a posterior pocket ( Fig. 74 A ). Description. Male ( Holotype ): Total length 10.00. Markings as in Figs. 9 D , 11 A . Carapace 5.79 long, 4.07 wide, 1.79 high; clypeus 0.25 high. Eye diameters: AME 0.20, ALE and PME 0.21, PLE 0.23. Chelicerae 2.29 long; sternum 2.71 long, 2.04 wide; labium 1.07 long; palpal coxae 1.57 long. Divided cribellum. Spination: palpus–femur d0-0-1, p0-0-1, r0-0-1; leg I–femur d1-0-0-1, p0-0-2, r0-1-0-1, patella p1, tibia d0-0-1-1, p0-1-1-0, v2-2-2-2, r0-1-1-0, metatarsus p1-1-0, v2-2- 3, r1-1-0; leg II–femur d0-1-0-1, p0-1-2, r0-1-0-1, patella p1, tibia d0-0-1-1, p0-1-1-0, v2-2-2-2, r0-1-1-0, metatarsus p1-1-2, v2-1-1, r1-1-1; leg III–femur d0-0-1-1, p0-1-1-1, r0-1-1-1, tibia d1-0- 1-0, p0-1-1-0, v1-2-2, r0-1-1-0, metatarsus d0-1-0, p1-1-2, v2-2-2, r1-1-2; leg IV–femur d1-1-0- 1, p0-0-0-1, r0-0-0-1, patella r1, tibia d0-1-1-0, p0-1-0-0, v2-2-2, r0-1-1-0, metatarsus p1-2-2, v2- 2-2, r0-1-2. Scopulae: cymbium, apicodorsal; weak beneath tarsi and apices of all metatarsi. Leg measurements: I: 5.00 + 2.14 + 5.07 + 5.14 + 2.93 = 20.09; II: 4.50 + 1.93 + 3.79 + 4.29 + 2.50 = 17.00; III: 3.71 + 1.79 + 2.00 + 3.07 + 1.93 = 12.50; IV: 5.00 + 1.93 + 4.00 + 5.07 + 2.36 = 18.36; palpus: 2.29 + 0.93 + 0.86 + NA + 2.50 = 6.57. Leg formula 1423. Male palp ( Figs. 60 A–C ): palpal tibia 0.38 times cymbial length, RTA straight, with pointed apex ( Fig. 60 C ), RTA length 0.47 tibia, length 1.78 times width, VTA slender, conical, elongate ( Figs. 60 B, C ), length 2.00 times width, length 0.44 tibia width; tibia lacking stout spines; tegulum convex, without ridge, tegulum length 0.84 times width; TA1 extends distad of tegulum apex, TA1 extends past TA3 apex by 1.16 times tegulum length; TA3 J-shaped ( Fig. 60 A ), apicad of TA3 to TA2 by 1.125 tegulum length, TA2 a large triangular blade, behind TA3 apex; MA very small, simple ( Figs. 60 A, C ), origin at 0.44 tegulum length, length (including apical processes) 0.73 times width, length 0.19 tegulum length, width 0.22 tegulum width; conductor fan entire ( Fig. 60 C ). Female ( Paratype , CASENT9006045): Total length 15.00. Markings as in male and as in Fig. 7 E . Carapace 7.57 long, 5.00 wide, 2.64 high; clypeus 0.43 high. Eye diameters: AME 0.21, ALE 0.25, PME 0.27, PLE 0.30. Chelicerae 3.50 long; sternum 3.39 long, 2.50 wide; labium 1.71 long; palpal coxae 2.57 long. Divided cribellum. Spination: palpus–femur d0-0-1, tibia p1-0, tarsus p2-0, v0-0-1; leg I– femur d1-0-1, p0-0-1, tibia v2-2-2-2, metatarsus p0-0-1, v1-2-2; leg II–femur d1-0-0, p0-0-1, tibia v1-1-2, metatarsus p0-0-1, v2-2-2; leg III–femur d0-1-0-1, p0-0-1-1, tibia d1-0-1-0, p0-1-1-0, v0- 1-2, r0-1-1-0, metatarsus p1-2-2, v2-2-2, r1-1-2; leg IV–femur d1-0-0, tibia v1-1-2, r0-1-1-0, metatarsus p0-0-1-1, v1-2-2, r0-2-1. Scopulae: strong ventral beneath all tarsi and beneath metatarsi I and II and apices of metatarsi III and IV. Leg measurements: I: 5.00 + 2.50 + 4.43 + 3.79 + 2.36 = 18.07; II: 4.50 + 2.29 + 3.21 + 3.00 + 2.14 = 15.14; III: 3.79 + 2.14 + 1.86 + 2.64 + 1.64 = 12.07; IV: 5.14 + 2.29 + 4.07 + 4.64 + 2.36 = 18.50; palpus: 2.29 + 1.29 + 1.36 + NA + 2.64 = 7.57. Leg formula 4123. Female genitalia: epigynal plate with median lobe surrounded by depressed atrium, plate width 1.18 times length ( Fig. 74 A ) ; atrium sides deeply concave, atrium wide, width 2.27 times atrium length, atrium with deep transverse concavity along posterior margin ( Fig. 74 A ); epigynum length 2.50 times atrium length, atrium width 0.77 times epigynum width; atrium width at side of ML 1.42 times ML width; atrium and ML end well anteriad of epigastric groove, atrium origin at 0.24 of epigynal plate length, median lobe narrow, slightly wider at base, median lobe length 2.08 times width, ML extends well anteriad of atrium apex, ML length extends 0.18 times epigynum length anteriad of atrium, ML length 0.45 times epigynal length; LL narrow, atrium width 7.15 times LL width; copulatory openings hidden beneath lateral margins of atrium, distance between CO 0.61 width of epigynal plate, CO distance from epigastric furrow 0.36 times epigynum length. Vulva ( Fig. 74 B ) with spermathecal ducts making four broad, transverse curves, vulva length 0.82 times width, fertilization ducts close-together, vulva width 11.25 times distance between fertilization ducts. Variation. Male (N = 4): Total length = 10.00–12.57, carapace length / width = 1.37–1.48, carapace height / width = 0.44–0.55, PER / carapace width = 0.62–0.82, PER/OAL = 2.42–2.62, PER/AER = 1.32–1.38, OAL/OQL = 1.07–1.15, OQP/ OQA = 1.18–1.29, clypeus height / AME = 0.91–1.27, cheliceral length / clypeus height = 9.14–14.80, sternum length / width = 1.30–1.40, palpal coxa length / width = 1.93–2.45, femur I length / carapace width = 1.20–1.23, metatarsus I length / carapace width = 1.23–1.30, femur IV length / carapace width = 1.19–1.25, cymbium length / carapace width = 0.55–0.63, cymbium length / palpal patella length = 2.67–2.75, cymbium length / palpal tibia length = 2.92–3.07, cymbium length / palpal femur length = 1.06–1.21, palpal tibia length / palpal patella length 0.88–0.92. Female (N = 5): Total length = 11.00–17.14, carapace length / width = 1.43–1.53, carapace height / width = 0.47–0.62, PER / carapace width = 0.67– 0.89, PER/OAL = 3.06–3.39, PER/AER = 1.33–1.45, OAL/OQL = 1.10–1.19, OQP/ OQA = 1.03– 1.25, clypeus height / AME = 1.23–2.00, cheliceral length / clypeus height = 8.17–10.25, sternum length / width = 1.29–1.36, palpal coxa length / width = 1.79–2.40, femur I length / carapace width = 0.92–1.05, metatarsus I length / carapace width = 0.68–0.79, femur IV length / carapace width = 0.96–1.11, palpal tarsus length / carapace width = 0.41–0.53, palpal tarsus length / palpal tibia length = 1.50–2.06, palpal tarsus length / palpal tibia length = 1.50–1.95, palpal tarsus length / palpal femur length = 0.82–1.16, palpal tibia length / palpal patella length = 0.94–1.06. Epigynum with median lobe length 1.80–3.33 times width; distance from atrium base to epigastric fold 0.19– 0.26 times epigynum length. M aterial examined. MADAGASCAR : Antsiranana Province : Parc National Montagne d’Ambre , 2.79 air km NE of park entrance, 12°32ʹS, 49°10ʹE, elev. approx. 1000m , 21–30 November 1993 , C. Griswold , R.Andriamasimanana , N. Scharff , S. Larcher and J. Coddington ( Holotype , CASENT9006044 , 1♂ , USNM ), ( CASENT9065490 , 1♂ , 2♀ , CAS ), ( CASENT9006043 , 1♂ , CAS ), ( CASENT9006049 , 1♀ , USNM ) , pitfall traps , ( CASENT9006047 , 1♀ , CAS ) ; Parc National Montagne d’Ambre , 12°30ʹ57ʺS , 49°11ʹ4“ E , 12 August 1992 , V. and B. Roth [VR-MA-1992- 01 ( paratypes , CASENT9006045 , 2♀ , CAS ), ( CASENT9006048 , 1♀ , 1jj, CAS ), [tracheal preparation of juvenile] ( CASENT9006046 , 2 jj, CAS ) ; Parc National Montagne d’Ambre , 3.6 km 235°SW Joffreville , 12°32ʹ4ʺS , 49°10ʹ46ʺE , elev. 925m , montane rainforest, general collecting day, 20–26 January 2001 , J. J. Rafanomezantsoa et al., [JJR0112] ( CASENT9002793 , 1♀ , CAS ), ( CASENT9002792 , 1♀ , CAS ), ( CASENT9002791 , 1♀ , CAS ) ; montane rainforest, ex ground level, 20–26 January 2001 , Lisa J. Boutin , [LJB0001.2] ( CASENT9003398 , 1♀ , CAS ) . Natural history. This species, Uduba salegy , is only known from montane rainforest where individuals were collected in pitfall traps and under objects. We know nothing of its use of cribellate silk. Distribution. Uduba salegy are known only from rainforests at Montagne d’Ambre in far northern Madagascar (Maps 2, 13).