Uduba barbarae, 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 : 22-23

Uduba barbarae , new species

Figures 7 H , 10 A–C , 76 A, B , Maps 4, 15.

Type material. Holotype female ( CASENT9006067 ) and four paratype females ( CASENT9006064 , CASENT9006066 , CASENT9006068 and CASENT9006069 ), collected along forest trails in Lokobe Forest , near sea level on the island of Nosy Be (13º24ʹ58.8ʺS, 48º18ʹ26.5ʺE), 11–14 August 1992 by Vince and Barbara Roth [VR0003], deposited in CAS.

Etymology. The species epithet is to honor Mrs. Barbara Roth, collector of this and many other interesting arachnids in Madagascar.

Diagnosis. Uduba barbarae are members of Group I.c, the Uduba funerea group ( Map 15 ) of Group I, the Epigynal atrium group. They are ecribellate, with a colulus ( Figs. 10 A–C ); female with epigynal plate with median lobe surrounded by depressed atrium, ML fills most of atrium, atrium width at side of ML only 0.14 ML width, plate extensive posteriad of atrium, height greater than 0.15 times epigynal length; median lobe broad, width atrium less than 3 times ML width ( Figs. 76 A, B ). Male unknown.

Description. Male: Unknown. Female (Holotype, CASENT9006067): Total length 28.43. Markings as in Figs. 7 H , 10 A–C . Carapace 15.71 long, 10.86 wide, 5.71 high; clypeus 1.00 high. Eye diameters: AME 0.50, ALE 0.45, PME 0.43, PLE 0.54. Chelicerae 8.14 long; sternum 6.43 long, 4.50 wide; labium 3.39 long; palpal coxae 5.54 long. With a colulus. Spination: (Holotype): palpus – femur d0-1-2, patella p1-0, tibia p2-1, r1-0, tarsus p2-1, r1-0; leg I – femur d1-0-0, p0- 0-2, tibia v2-2-2-2, metatarsus v2-2-3; leg II – femur d0-1-0-1, p0-0-0-1, tibia p0-1-1-0, v2-1-2-2, metatarsus v2-2-3; leg III – femur d1-0-0-1, p1-1-0-1-1, r0-1-1-1, tibia d1-0-0-1, p0-1-1-0, v2-2-2, r0-1-1-0, metatarsus p1-1-2, v2-1-2-2, r1-1-2, tarsus v0-1-0; leg IV – femur d1-1-0-1, p0-1-0-1, r0- 0-0-1, tibia p0-1-1-0, v2-2-2, r0-1-1-0, metatarsus p1-1-1-2, v2-1-2-2, r1-1-1-2. Scopulae: ventral on tarsi and metatarsi I-IV and tibia I, apical half of tibia II, and apices tibiae III and IV. Leg measurements [Holotype]: I: 12.36 + 5.21 + 9.00 + 7.86 + 4.29 = 38.71; II: 9.71 + 5.07 + 7.86 + 8.14 + 4.00 = 34.79; III: 8.21 + 4.29 + 5.00 + 6.79 + 3.07 = 27.36; IV: 10.57 + 4.64 + 8.71 + 11.14 + 4.57 = 39.64; palpus: 5.79 + 2.93 + 3.07 + NA + 5.00 = 16.79. Leg formula 4123. Female genitalia (paratype, CASENT9006066): epigynal plate with median lobe surrounded by depressed atrium; epigynal plate narrow ( Figs. 76 A ), width equals length; atrium sides narrow, atrium width 1.67 times atrium length; epigynum length 3.33 times atrium length, atrium width 0.50 times epigynum width; ML fills most of atrium, atrium width at side of ML only 0.14 ML width; atrium and median lobe anteromedian, arise at 0.30 epigynum length from epigastric groove; median lobe broad, triangular, median lobe length 1.49 times width, ML length 1.67 times atrium length, 0.50 times epigynal length, ML width 0.70 atrium width, ML apex extends far anteriad of atrium apex by nearly one-half ML length; lateral lobes broad, atrium width 2.00 times LL width; copulatory openings beneath anterolateral margins of atrium. Vulva ( Figs. 76 B ) with spermathecal ducts making at least four broad spiral curves, vulva length 0.75 times width, fertilization ducts close together, vulva width 12.00 times distance between fertilization ducts.

Variation. Female (N = 5): Total length 21.00–33.14. Carapace length / width = 1.38–1.47, carapace height/ width = 0.47–0.56, PER/ carapace width = 0.40–0.80, PER/OAL = 1.59–3.27, PER/AER = 2.73–3.27, OAL/OQL = 1.00–1.13, OQP/ OQA = 1.03–1.13, clypeus height/ AME diameter width = 1.57–2.56, cheliceral length / clypeus height = 6.67–10.50, sternum length / width = 1.30–1.43, palpal coxa length / width = 2.03–2.41, femur I length / carapace width = 0.94–1.14, metatarsus I length / carapace width = 0.71–0.76, femur IV/ carapace width = 0.94–1.05, palpal tarsus length / carapace width = 0.41–0.49, palpal tarsus length / palpal patella length = 1.50–1.73, palpal tarsus length / palpal tibia length = 1.33–1.67, palpal tarsus length / palpal femur length = 0.81–0.95, palpal tibia length / palpal patella length = 1.03–1.18. Male variation is unknown.

Material examined. MADAGASCAR: Antsiranana Province: Ankaranana, English camp, 12º54ʹ34ʺS, 49º6ʹ36ʺE, “ 3cm diameter hole x 16cm deep in trail, few leaves around entrance tied by few silken threads”, 20–26 August 1992, V. and B. Roth ( CASENT9006065 , 1♀, CAS) ; Nosy Be, Lokobe Forest , 13º24ʹ58.8ʺS, 48º18ʹ26.5ʺE, “in 5/8” x 4-6” burrow on forest trail”, 11– 14 August 1992, V. and B. Roth (paratype, CASENT9006064 , 1♀, CAS), (paratype, CASENT9006066 , 1♀, CAS), (holotype, CASENT9006067 , 1♀, CAS), (paratype, CASENT9006068 , 1♀, CAS) , (paratype, CASENT9006069 , 1♀, CAS) .

Natural history. Specimens of Uduba barbarae were collected in lowland rainforest. This ecribellate species forms deep burrows with a small amount of silk near the entrance.

Distribution. Uduba barbarae are known only from the island of Nosy Be and western coastal Antsiranana Province in northern Madagascar (Maps 4, 15).

Figures

FIGURE 7. Habitus photos of Uduba spp., females, dorsal views. A. U. pseudoevanescens, CASENT9006007, from Forêt Marovato, MNHN Paris. B. U. evanescens (Dahl, 1901), CASENT9006090 from Ranomafana National Park. C. U. volana, Holotype (CASENT9006072) from 1400m elevation at Ambohimanga. D. U. goodmani, Holotype (CASENT9006074) from Réserve Naturelle Intégrale d’Andohahela. E. U. salegy, Paratype (CASENT9006045) from Parc National Montagne d’Ambre. F. U. ibonia, CASENT9006033 from Ranomafana National Park. G. U. schlingeri, CASENT9006075 from Parc National Ranomafana. H. U. barbarae, paratype (CASENT9006064), from Lokobe Forest on the island of Nosy Be. I. U. kavanaughi, paratype (CASENT9003517) from Parc National Ranomafana. J. U. woodae, paratype (CASENT9017834) from spiny forest at Lake Ranobe. K. U. woodae, CASENT9006092 from Ambovombe, Carougeau, Muséum Paris. L. U. madagascariensis (Vinson, 1863), CASENT9006029, from forest near village of Ambohimanga. Scale bars (see A, I) = 5 mm.

FIGURE 10. Habitus drawings, Uduba barbarae ♀ (CASENT9066066), Nosy Be Island. A. Lateral. B. Dorsal. C. Ventral. Illustrations by Jenny Speckels. Scale bar = 5.0 mm.

FIGURE 76. Uduba spp., female genitalia drawings. A, B. U. barbarae, new species, paratype (CASENT9006064) from Lokobe Forest on the island of Nosy Be. C, F, I. U. milamina, new species. C. Holotype (CASENT9010797) from a malaise canopy trap at the Ranomafana-Radio Tower. F, I. Paratype (CASENT9006100) from Andringitra Reserve. D, E. U. kavanaughi, new species, paratype (CASENT9003517) from Talatakely, Parc National Ranomafana. G, H. U. platnicki, new species, paratype (CASENT9030253) from Mikira Forest. A, C, D. H, I. Epigynum, ventral. B, E, F, G. Vulva, dorsal. Illustrations A, B by Jenny Speckels, C–I by Charles Griswold. At, atrium of epigynum; AtSp, atrial side plate of epigynum; EF, epigastric furrow; LL, lateral lobe of epigynum; ML, median lobe of epigynum. Scale bar = 0.5 mm.

MAP 15. Distribution of Group I.c, the Uduba funerea MAP 16. Distribution of Group II, the Epigynum lateral group of Group I, the Epigynal atrium group: Uduba projection group, or Uduba evanescens group: Uduba funerea Simon, 1906, U. barbarae, U. lavitra, U. orona and evanescens (Dahl, 1901), U. rakotofrah, U. volana, U. milamina. U. heliani, U. goodmani and Uduba pseudoevanescens.