Otoniela duovizinhense Oliveira & De Alvarenga & Brescovit 2023, new species
Creators: name: Oliveira, Luiz Fernando M.
name: De Alvarenga, José Geraldo G.
name: Brescovit, Antonio D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Anyphaenidae
Otoniela
Otoniela duovizinhense

description: 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).
description: Published as part of 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, pp. 1-23 in Zootaxa 5383 (1) on pages 12-14, DOI: 10.11646/zootaxa.5383.1.1, http://zenodo.org/record/10301516