Otoniela duovizinhense, Oliveira & De Alvarenga & Brescovit, 2023

Oliveira, Luiz Fernando M., De Alvarenga, José Geraldo G. & Brescovit, Antonio D., 2023, On the Neotropical spider genus Otoniela Brescovit, 1997 (Araneae: Anyphaenidae, Anyphaeninae), with the description of six new species, Zootaxa 5383 (1), pp. 1-23 : 12-14

Otoniela duovizinhense new species

Figs 7A–H ; 12A

Types. Male holotype and female paratype from between Cruzeiro do Iguaçu and Dois Vizinhos (25°37’10.90”S; 53°7’44.37”W), Paraná, Brazil, 8–15.X.1998, Equipe IBSP leg., deposited in IBSP 21060 .

Etymology. The specific epithet indicates the one born in the city of Dois Vizinhos.

Diagnosis. Males of Otoniela duovizinhense sp. nov. are similar to those of O. adisi , O. lupercioi sp. nov. and O. chica sp. nov. by the palp with short embolus ( Figs 1F ; 3H, I ; 4C ; 5G, H ). They differ by having an acuminate, tapered ventral tegular projection and transversal sperm duct elongated in ventral view ( Figs 7C, D ). The bifid median apophysis and with denticles and chelicerae with a protuberance in the fang base in O. adisi ( Figs 2A, B ; 3H, I ); large base of the ventral tegular projection and truncated embolar basal apophysis in O. lupercioi sp. nov. ( Figs 4C, E ; 5G, H ) and narrow base of ventral tegular projection and oblique sperm duct in O. chica sp. nov. ( Figs 6C, E ). Females resembles those of O. aparecida sp. nov. by the narrow atrium ( Fig. 8C ). They differ by the epigynal plate inverted U-shaped lateral borders and together spermathecae ( Figs 7G, H ). The invagination conspicuous accentuated toward the atrium inverted V-shaped and separated spermathecae in O. aparecida sp. nov. ( Figs 8C, D ).

Description. Male (IBSP 21060). Carapace with two dark orange paramedian longitudinal bands. Endites, labium and sternum orange. Chelicerae brown. Legs yellowish, slightly darker distally on the tibias. Abdomen light brown with dark gray intercalated longitudinal bands ( Fig. 7A ). Total length 4.5. Carapace 2.15 long, 1.6 wide. Clypeus 0.06. Eye diameters and interdistances: AME 0.11, ALE 0.13, PME 0.10, PLE 0.12, AME–AME 0.05, AME–ALE 0.02, PME–PME 0.15, PME–PLE 0.10, ALE–PLE 0.06. Chelicerae 0.6 long, with seven promarginal teeth and seven retromarginal denticles. Leg measurements: I—femur 1.75/ patella 0.75/ tibia 1.75/ metatarsus 1.5/ tarsus 0.75/ total 6.5; II—1.6/ 0.7/ 1.5/ 1.25/ 0.6/ 5.65; III—1.35/ 0.65/ 1.0/ 1.15/ 0.5/ 4.65; IV—2.0/ 0.75/ 1.6/ 2.0/ 0.6/ 6.95. Leg spination: I—tibia p0, metatarsus p0, r0; II—tibia p0, metatarsus p0, r0; III—tibia v1- 1-2, r0, metatarsus v2-1-2; IV—tibia v1-1-2, r0-1-1. Palp: retrolateral patellar apophysis short; dorsal patellar apophysis short and bifid apical prolateral tibial apophysis short and conical; retrolateral tibial apophysis short with rounded apex, with furrow in the median region; tegulum longer than wide; ventral tegular projection subtriangular, leaf-shaped; median apophysis elongated; embolus short; apophysis of base of the embolus with projection long, pointed ( Figs 7C–F ). Abdomen: length 2.25, epigastric furrow 0.5 from tracheal spiracle, spiracle 0.85 from base of spinnerets.

Female (IBSP 21060). Coloration as in male ( Fig. 7B ). Total length 4.25. Carapace 1.75 long, 1.35 wide. Clypeus 0.05. Eye diameters and interdistances: AME 0.11, ALE 0.11, PME 0.10, PLE 0.10, AME–AME 0.02, AME–ALE 0.02, PME–PME 0.15, PME–PLE 0.09, ALE–PLE 0.04. Chelicerae 0.6 long, with six promarginal teeth and seven retromarginal denticles. Leg measurements: I—femur 1.25/ patella 0.55/ tibia 1.25/ metatarsus 1.0/ tarsus 0.5/ total 4.55; II—1.15/ 0.55/ 1.05/ 0.9/ 0.45/ 4.1; III—0.95/ 0.4/ 0.75/ 0.8/ 0.4/ 3.3; IV—1.5/ 0.55/ 1.3/ 1.5/ 0.55/ 5.4. Leg spination: I—tibia p0, metatarsus p0, r0; II—tibia p0, metatarsus p0, r0; III—tibia v1-1-2, p0-1-1, r0-1-1, metatarsus v2-0-2; IV—tibia v1-1-1, p0-1-1, r0-1-1; metatarsus r0-1-1. Epigynum: atrium small ( Fig. 7G ). Internally with short copulatory ducts; seminal receptacles together with the spermathecae; spermathecae large, oval and close together; Bennett’s glands inconspicuous; short fertilization ducts ( Fig. 7H ). Abdomen: length 2.5, epigastric furrow 0.65 from tracheal spiracle, spiracle 0.85 from base of spinnerets.

Variation. Males (n=2): total length 3.8–4.5; carapace length 1.8–2.15; femur I length 1.75–2.35. Females (n=2): total length: 4.25–4.5; carapace length 1.75–2.1; femur I length 1.25–1.55.

Other material examined. BRAZIL. Mato Grosso: Pontes e Lacerda (15°13’33”S; 59°20’06”W), Usina Hidrelétrica de Guaporé , Vale São Domingos , 1♂, X.1999, Equipe Resgate leg. ( IBSP 41438 ); São Paulo: Presidente Epitácio, Usina Hidrelétrica Engenheiro Sérgio Motta , (21°46’0.69”S; 52°6’34.71”W), 1♂, 16.I–13.II.1999, Equipe IBSP leg. ( IBSP 23053 ) . ARGENTINA. Misiones: Puerto Piray (26°28’00”S; 54°43’00”W), 1♀, 01.IX–15.XI.1964, A. Kovacs leg. ( AMNH) .

Distribution. Brazil (States of São Paulo and Paraná) and Argentina ( Fig. 12A ).

Figures

FIGURE 1A–J. Otoniela adisi Brescovit, 1997.Male (IBSP 29715; 58258):A habitus, dorsal view; C Cephalothorax, chelicerae, dorsal view (arrow indicate fang base with protuberance); D left palp expanded, prolateral view; E left palp expanded, retrolateral view; F left palp, ventral view; G left palp, prolateral view; H left palp, retrolateral view; I left palp, retrodorsal view. Female (IBSP 11452): B habitus, dorsal view; J Epigynum, ventral view. Abbreviations:A, atrium; EBA, embolar base apophysis; BH, basal haematodocha; CO, copulatory opening; C, cymbium; DPA, dorsal patellar apophysis; E, embolus; LB, lateral borders; MA, median apophysis; P, petiole; RTA, retrolateral tibial apophysis; PTA, prolateral tibial apophysis; RPA, retrolateral patellar apophysis; ST, subtegulum; T, tegulum; VTP, ventral tegular projection. Scale bars: A, B 2.16mm; C 0.83mm; D, E, F, J 0.25mm; G–I 0.5mm.

FIGURE 2A–L. Otoniela adisi Brescovit, 1997. Male (IBSP 11452): A chelicera, ventral view; B chelicera, paturon (detail, arrow indicate fang base with protuberance); C colulus, ventral view; D anterior lateral spinneret; E posterior median spinneret; F posterior lateral spinneret; G leg I, femur in ventral view (arrows indicate the spines); H claws, tarsus I, retrolateral view; I claws, tarsus IV, prolateral view; J tricobothrium, dorsal view; K tarsal organ, dorsal view; L slit sensilla, dorsal view. Abbreviations: Ac, aciniform gland spigot; CL, colulus; MaAm, major ampullate gland spigot; MiAm, minor ampullate gland spigot; Pi, piriform gland spigot. Scale bars: A 0.4mm; B 0.3mm(0.04mm); C, D, F, G, H, I 0.5mm; E 0.04mm; J 0.01mm; K, L 0.005mm.

FIGURE 3A–L. Otoniela adisi Brescovit, 1997. Male (IBSP 11452):A left palp, ventral view; B same, prolateral view; C same, ventral view; D same, retrolateral view (arrows indicate lyriform organ in the patella); E left palp, patella, retrolateral view (arrows indicate the lyriform organ in the patella); F left palp, dorsal view; G left palp, copulatory bulb, ventral view (arrow indicate the denticle in the median apophysis); H same, ventral view; I same, retroventral view (arrow indicate the denticle in the median apophysis). Female (IBSP 11454): J vulva, dorsal view; K same, zoom in spermatheca, dorsal view; L vulva, details spermatheca, dorsal view. Abbreviations: EBA, embolar base apophysis; BG, Bennett’s gland, CD, copulatory ducts; DPA, dorsal patellar apophysis; E, embolus; FD, fertilization ducts; GD, gland ducts; MA, median apophysis; PTA, prolateral tibial apophysis; RTA, retrolateral tibial apophysis; RPA, retrolateral patellar apophysis; S, spermathecae; SR, seminal receptacles; ST, subtegulum; T, tegulum; VTP, ventral tegular projection. Scale bars: A 0.4mm; B, G, J 0.2mm; C, D, F, H, I, K 0.01mm; E 0.05mm; L 0.03mm.

FIGURE 4A–H. Otoniela lupercioi sp. nov.. Male (IBSP 29716): A habitus, dorsal view; C, D left palp, ventral view; E same, prolateral view; F same, retrolateral view. Female (IBSP 29715): B habitus, dorsal view; G epigynum, ventral view; H vulva, dorsal view. Abbreviations: A, atrium; EBA, embolar basal apophysis; CD, copulatory ducts; DPA, dorsal patellar apophysis; E, embolus; FD, fertilization ducts; LB, lateral borders; MA, median apophysis; PTA, prolateral tibial apophysis; RTA, retrolateral tibial apophysis; RPA, retrolateral patellar apophysis; S, spermatheca; ST, subtegulum, T, tegulum, VTP, ventral tegular projection. Scale bars: A 2.6mm; B 3.5mm; C, F, G 0.25mm; D, E 0.5mm.

FIGURE 5A–J. Otoniela lupercioi sp. nov.. Male (IBSP 79971): A chelicera, dorsal view; B chelicera, ventral view; C right chelicera, ventral view; D left palp, prolateral view; E same, ventral view; F same retrolateral view (arrow indicate the lyriform organ in the patella); G left palp, copulatory bulb, ventral view; H same, retrolateral view. Female (IBSP 279589): I vulva, dorsal view; J vulva, detail, dorsal view. Abbreviations: EBA, embolar base apophysis; BG, Bennett’s gland, CD, copulatory ducts; DPA, dorsal patellar apophysis; E, embolus; FD, fertilization ducts; GD, gland ducts; MA, median apophysis; PTA, prolateral tibial apophysis; RTA, retrolateral tibial apophysis; RPA, retrolateral patellar apophysis; S, spermathecae; SR, seminal receptacles; ST, subtegulum; T, tegulum; VTP, ventral tegular projection. Scale bars: A, B, D 0.5mm; C, H, I 0.1mm; E, F 0.2mm; G 0.3mm; J 0.04mm.

FIGURE 6A–H. Otoniela chica sp. nov.. Male (MACN-Ar): A habitus, dorsal view; C, D left palp, ventral view; E same, prolateral view; F same, retrolateral view. Female (MLP): B habitus, dorsal view; G epigynum, ventral view; H vulva, dorsal view.Abbreviations:A, atrium; EBA, embolar base apophysis; CD, copulatory ducts; DPA, dorsal patellar apophysis; E, embolus; FD, fertilization ducts; LB, lateral borders; MA, median apophysis; PTA, prolateral tibial apophysis; RTA, retrolateral tibial apophysis; RPA, retrolateral patellar apophysis; S, spermatheca; ST, subtegulum, T, tegulum; VTP, ventral tegular projection. Scale bars: A, B 2.16mm; C, F, G 0.25mm; D, E 0.6mm.

FIGURE 7A–H. Otoniela duovizinhense sp. nov.. Male (IBSP 21060): A habitus, dorsal view; C, D left palp, ventral view; E same, prolateral view; F same, retrolateral view. Female (IBSP 21060): B habitus, dorsal view; G epigynum, ventral view; H vulva, dorsal view. Abbreviations: A, atrium; EBA, embolar base apophysis; CD, copulatory ducts; CO, copulatory opening; DPA, dorsal patellar apophysis; E, embolus; LB, lateral borders; MA, median apophysis; PTA, prolateral tibial apophysis; RTA, retrolateral tibial apophysis; RPA, retrolateral patellar apophysis; S, spermatheca; ST, subtegulum, T, tegulum, VTP, ventral tibial projection. Scale bars: A 2.16mm; B 1.5mm; C 0.25mm; D, E 0.5mm; F, G 0.25mm.

FIGURE 8A–D. Otoniela aparecida sp. nov.. Female (IBSP 21105):A habitus, dorsal view; B same, ventral view; C epigynum, ventral view; D vulva, dorsal view. Abbreviations: A, atrium; CD, copulatory ducts; FD, fertilization ducts; LB, lateral borders; S, spermatheca. Scale bars: A 1.5mm; B 2.16mm, C, D 0.25mm.

FIGURE 12 A–B. Distribution map of Otoniela species.