Uduba fandroana, Griswold & Ubick & Ledford & Polotow, 2022

Griswold, Charles, Ubick, Darrell, Ledford, Joel & Polotow, Daniele, 2022, A Revision of the Malagasy Crack-Leg Spiders of the Genus Uduba Simon, 1880 (Araneae, Udubidae), with Description of 35 New Species from Madagascar, Proceedings of the California Academy of Sciences 67, pp. 1-193 : 33-34

Uduba fandroana , new species

Figures 9 F , 39 A–C , Maps 12, 13.

Type material. Holotype male ( CASENT9002691 ) from montane rainforest at 1300m elevation at 11.5 km 147°SSE Anjozorobe, (18°28ʹ24ʺS, 47°57ʹ36ʺE), Antananarivo Province, Madagascar, collected 5–13 December 2000 by the Fisher-Griswold Arthropod Team ( BLF2370 ), deposited in the CAS . Paratype male ( CASENT9064784 ), same data, deposited in CAS .

Etymology. The species epithet, fandroana, refers to an annual New Year’s festival in Madagascar, a noun in apposition.

Diagnosis. Uduba fandroana are members of Group I.a, the Uduba dahli group ( Map 13 ) of Group I, the Epigynal atrium group. They are ecribellate, with a colulus. Males have the palpus ( Figs. 39 A–C ) with the MA relatively small, width less than 0.35 tegulum width, height less than 0.25 tegulum height, without prominent projections, TA2 small, inconspicuous, TA2 a small, slen- der, sharp blade, pointing distally and hidden behind TA3, TA3 large, strongly curved ( Figs. 39 A– C ); males of Uduba fandroana are distinguished from U. lamba by the small, simple MA ( U. lamba have the MA large, concave in center with strong marginal ridge [ Fig. 49 A–C ]); males of U. fandroana are distinguished from U. hainteny by the small, inconspicuous TA2 ( U. hainteny have the TA2 large, conspicuous and with the apex a rounded blade, TA2 equal to or larger than TA3 [ Figs. 42 A–C ]). Female unknown.

Description. Male (Holotype): Total length 10.20. Markings as in Fig. 9 F . Carapace 5.80 long, 3.80 wide, 2.00 high; clypeus 0.20 high. Eye diameters:AME and ALE 0.22, PME 0.20, PLE 0.26. Chelicerae 2.50 long; sternum 2.50 long, 2.00 wide; labium 1.20 long; palpal coxae 1.90 long. With a colulus. Spination (paratype, CASENT9064784), palpus–femur d1-1-1, p0-0-1, r0-0-1, patella p0-1, tibia p1-0; leg I–femur d1-1-1, p0-1-2, r0-1-0-1, tibia d0-1-1-0, 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 d1-0-1-1, p1-0-2, r1-1-0-1, tibia d0-1-1- 0, p0-1-1-0, v2-2-2-2, r0-1-1-0, metatarsus p1-1-0, v2-2-3, r1-1-0; leg III–femur d1-1-1, p1-1-1-1, r0-1-1-1, tibia d0-1-0, p0-1-1-0, v2-2-2, r0-1-1-0, metatarsus p1-1-2, v2-2-2, r1-1-2, tarsus v0-1-0; leg IV–femur d1-1-1, p1-1-1-1, r0-0-1-1, patella r1, tibia d0-1-0, p0-1-1-0, v2-2-2, r10-0-1, metatarsus d1-1-1-0, p1-1-1-1, v2-2-2, r1-0-01. Scopulae: cymbium, apicodorsal; strong beneath all tarsi, half of metatarsus I and apices of metatarsi II-IV. Leg measurements (holotype): I: 5.70 + 2.20 + 5.90 + 6.50 + 3.50 = 23.80; II: 5.30 + 2.00 + 5.00 + 5.50 + 3.10 = 20.90; III: 4.40 + 1.70 + 3.40 + 4.70 + 2.50 = 16.70; IV: 6.00 + 1.90 + 5.80 + 7.50 + 3.40 = 24.60; palpus: 1.90 + 0.80 + 0.90 + NA + 2.80 = 6.40. Leg formula 4123. Male palp (holotype): palpal tibia 0.38 times cymbial length, RTA a broad blade, slightly curved ventrad, RTA length 0.32 times tibia, 1.20 times width, with pointed apex ( Figs. 39 A–C ); VTA conical, VTA length 1.44 times width, length 0.35 times tibia width; tibia lacking stout spines; tegulum convex, without ridge, tegulum length 1.02 times width; TA1 extends distad of tegulum apex, TA1 extends past TA3 apex by 1.18 times tegulum length; TA3 a broad, sharp-pointed screw with proximal ridges, extends apicad of TA2 by 1.17 tegulum length, TA2 a small, slender, sharp blade, pointing distally and hidden behind TA3 ( Fig. 39 A ); MA simple, origin at 0.35 times tegulum length, tegulum apex at 0.31 tegulum length from MA apex, length (including apical processes) 0.53 times width, MA small ( Fig. 39 B ), length 0.17 tegulum length, width 0.32 tegulum width; conductor fan entire. Female. Unknown.

Variation. (N = 4): Total length = 9.10–11.50, carapace length / width = 1.40–1.55, carapace height / width = 0.49–0.58, PER / carapace width = 0.38–0.41, PER / OAL = 2.61–3.00, PER / AER = 1.30–1.34, OAL / OQL = 1.00–1.20, OQP / OQA 1.09–1.20, clypeus height / AME = 0.91–1.67, cheliceral length / clypeus height = 7.75–12.50, sternum length / width = 1.21–1.33, palpal coxa length / width = 2.56–2.71, femur I length / carapace width =1.28–1.55, metatarsus I length / carapace width = 1.38–1.71, femur IV length / carapace width =1.34–1.58, cymbium length / carapace width = 0.65–0.74, cymbium length / palpal patella length = 3.13–3.50, cymbium length / palpal tibia length = 2.60–3.11, cymbium length / palpal femur length = 1.13–1.47, palpal tibia length / palpal patella length = 1.09–1.25. Only males known, female variation unknown.

Material examined. MADAGASCAR: Antananarivo Province: 3 km 41°NE Andranomay, 11.5 km 147°SSE Anjozorobe , 18°28ʹ24ʺS, 47°57ʹ36ʺE, elev. 1300m, pitfalls in montane rainforest, 5–13 December 2000, Fisher, Griswold et al., [BLF2370] (Holotype, CASENT9002691 , 1♂, CAS), (paratype, CASENT9064784 , 1♂, CAS) , Réserve Spéciale d’Ambohitantely , 24 km NE Ankazobe, 18º10.1ʹS, 47º16.6ʹE, elev. 1450m, disturbed transitional montane mossy forest, pitfall traps 7–8, 7–12 December 1997, S. Goodman ( CASENT9006223 1♂, FMNH) . Fianarantsoa Province: Fitovinany Region, District of Ifanadiana, 12 km W of Ranomafana, Radio Tower , 21º15.05ʹS, 047º24.43ʹE, elev. 1127m, malaise, canopy trap in open area at forest edge, 10–15 November 2009, Harin’Hala Rinha and M. Irwin [MG-09B-267] ( CASENT9017919 , 1♂, CAS) ; Forêt d’Ankazomivady, 4.7 km SW Ambalamanakana, 28 km SSW Ambositra , 20º46.5ʹS, 47º10.1ʹE, elev. 1670m, pitfall traps #1–3, disturbed upper montane forest, 7–14 January 1998, S. Goodman ( CASENT9006103 , 3♂, FMNH) ; RNI Andringitra, Anjavidilay, 8.5 km SE Atanifotsy, 22°09.5ʹS, 46°57.6ʹE, elev. 1990m, pitfall trap in Philippia -dominated sclerophyllus forest, 5–11 March 1998, S. Goodman ( CASENT9064649 , 2♂, FMNH) ; Korikory , SE of Fandriana, 20º23ʹ4ʺS, 47º40ʹ2ʺE, elev. 1670m, 13 March 2000, E. Schlinger ( CASENT9006000 , 1♂, CAS) .

Natural history. Records of Uduba fandroana are all from over 1000m elevation, in the vicinity of montane rainforest, from forest margins and from Philippia -dominated sclerophyllus forest. Nothing is known of silk use by this ecribellate species.

Distribution. Specimens of Uduba fandroana have been collected in upland eastern forest from central to central-south Madagascar (Maps 12, 13).

Figures

FIGURE 9. Habitus photos of Uduba spp., males, dorsal views. A. U. schlingeri, (CASENT9006077) from R. S. de Ivohibe. B. U. woodae, CASENT9017831 from Lake Ranobe. C. U. lehibekokoa, Holotype (CASENT9017929) from tropical dry forest in Parc National de Namoroka. D. U. salegy, Holotype (CASENT9006044) from montane rainforest in Parc National Montagne d’Ambre. E. U. ibonia, CASENT9006034 from Parc National Ranomafana. F. U. fandroana, CASENT9006103 from Forêt d’Ankazomivady. G. U. kavanaughi, Holotype (CASENT9029870) from evergreen forest in Parc National Ranomafana. H. U. lamba, Holotype (CASENT9042542) from rainforest in Réserve Nationale Intégrale Betampona. Scale bars: A–F, H = 5 mm, G = 10 mm.

FIGURE 39. Uduba fandroana, new species, Holotype (CASENT9002691) from Anjozorobe, left male palpus. A. Prolateral. B. Ventral. C. Retrolateral. Illustrations by Daniele Polotow. C, conductor; Cm, cymbium; Eb, embolar base; MA, median apophysis; Pt, petiole of subtegulum; RTA, retrolateral tibial apophysis on male palp; ST, subtegulum; T, tegulum; TA1, proapical apophysis of the tegulum; TA2, proapical apophysis of the tegulum, arising just prolaterad of distal notch; TA3, retroapical apophysis of the tegulum; UTA, basal tibial apophysis on male palp, which is located at proximoventral margin of tibia extending above patellar intersegmental membrane; VTA, ventral tibial apophysis on male palp, typically arising at midsegment. Scale bar = 1.0 mm.

MAP 13. Distribution of Group I.a, the Uduba dahli MAP 14. Distribution of Group I.b, the Uduba woodae group of Group I, the Epigynal atrium group: Uduba group of Group I, the Epigynal atrium group: Uduba lamba, U. fandroana, U. hainteny, U. kavanaughi, U. plat- andriamihajai, U. balsama, U. schlingeri, U. taralily, nicki, U. halabe, U. salegy, U. dahli Simon 1903 and U. lehibekokoa and U. woodae. U. ibonia.

FIGURE 49. Uduba lamba, new species, Holotype (CASENT9052542) from Réserve National Intégrale Betampona, left male palpus. A. Prolateral. B. Ventral. C. Retrolateral. Arrow to retrolateral notch in tegulum. Arrow to bump on tegulum. Illustrations by Rachel Diaz-Bastin. MA, median apophysis; TA2, proapical apophysis of the tegulum; TA3, retroapical apophysis of the tegulum. Scale bar = 0.5 mm.

FIGURE 42. Uduba hainteny, new species, Holotype (CASENT9032857) from Forêt Ivohibe, left male palpus. A. Prolateral. B. Ventral. C. Retrolateral. Illustrations by Charles Griswold. Scale bar = 0.5 mm.