Otoniela lupercioi, 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 : 7-10

Otoniela lupercioi new species

Figs 4A–H ; 5A–J ; 13A

Types. Male holotype from Usina Hidrelétrica Engenheiro Sérgio Motta , Primavera (22°28’41.02”S; 52°57’29.24”W), São Paulo, Brazil, I–II.2000, Equipe IBSP leg., deposited in IBSP 29716 . Female. paratype with same data of holotype, deposited in IBSP 29715 .

Etymology. The specific epithet is a patronymic in memory of Lupercio de Oliveira, the first author’s father.

Diagnosis. Males of Otoniela lupercioi sp. nov. resemble those O. chica sp. nov. by having a robust, subtriangular ventral tegular projection ( Fig. 6C ). They differ by the large base of the ventral tegular projection, smaller retrolateral patellar apophysis and truncated embolar basal apophysis ( Figs 4D, E ; 5G, H ). Narrow base of ventral tegular projection and oblique sperm duct in O. chica sp. nov. ( Figs 6C, E ). Females of Otoniela lupercioi sp. nov. are similar to those of O. chica sp. nov. by the ample epigynal atrium and rounded, large spermathecae ( Figs 5I ; 6F, G ). They differ by the arc-shaped posterior border ( Fig. 4G ). Posterior lateral borders sub-rectangular and a anterior invagination in O. chica sp. nov. ( Figs 6G, H ).

Description. Male (IBSP 29716). Carapace and sternum light brown. Chelicerae reddish brown. Endites and labium yellow. Legs yellowish, slightly darker distally on the tibia and metatarsi. Abdomen cream, with grayish dorsal spots or bands ( Fig. 4A ). Total length 4.15. Carapace 2.0 long, 1.45 wide. Clypeus 0.04. Eye diameters and interdistances: AME 0.16, ALE 0.12, PME 0.14, PLE 0.12, AME–AME 0.04, AME–ALE 0.04, PME–PME 0.16, PME–PLE 0.12, ALE–PLE 0.06. Chelicerae 0.85 long, with four promarginal teeth and six retromarginal denticles, with groove in the median region and without fang base with protuberance ( Figs 5A, B ). Leg measurements: I— femur 1.85/ patella 0.85/ tibia 2.0/ metatarsus 1.75/ tarsus 0.9/ total 7.35; II—1.6/ 0.8/ 1.64/ 1.65/ 0.75/6.45; III— 1.4/ 0.6/ 1.1/ 1.2/ 0.5/ 4.8; IV—1.95/ 0.75/ 2.35/ 2.0/ 0.7/ 7.75. Leg spination: leg I—tibia p0, metatarsus p0, r0; II—tibia p0-1-1, metatarsus p1-0-0, r0; III—tibia v1-1-2, p1-0-1, r0-1-1, metatarsus p1-0-1, r1-0-1; IV—tibia v1- 2-2. Abdomen: length 2.15, epigastric furrow 0.4 from tracheal spiracle, spiracle 1.0 from base of spinnerets. Palp: short retrolateral patellar apophysis; short and bifid dorsal patellar apophysis; conical and curved retrolateral tibial apophysis with a retrolateral basal groove; ventral tegular projection robust, subtriangular, broad base and anteriorly directed apex; short median apophysis with curved apex; short embolus with reduced basal projection ( Figs 4C–F ; 5D–H ).

Female (IBSP 29716). Coloration as in male, except abdomen clearer ( Fig. 4B ). Total length 4.1. Carapace 1.95 long, 1.35 wide. Clypeus 0.03. Eye diameters and interdistances:AME 0.12, ALE 0.12, PME 0.13, PLE 0.13, AME– AME 0.06, AME–ALE 0.03, PME–PME 0.15, PME–PLE 0.15, ALE–PLE 0.07. Chelicerae 0.8 long, with teeth as in male. Leg measurements: I—femur 1.4/ patella 0.6/ tibia 1.35/ metatarsus 1.0/ tarsus 0.55/ total 4.9; II—1.3/ 0.45/ 1.2/ 1.25/ 0.45/ 4.65; III—1.05/ 0.6/ 0.85/ 0.95/ 0.45/ 3.9; IV—1.5/ 0.75/ 1.45/ 1.7/ 0.55/ 5.95. Leg spination: legs III—tibia p0, metatarsus p0, r0; III—tibia v1-1-0, p0-1-1, r1-0-1; IV—tíbia v1-1-2. Abdomen: length 2.25, epigastric furrow 0.48 from tracheal spiracle, spiracle 0.85 from base of spinnerets. Epigynum: Lateral borders sclerotized, forming a semicircle in posterior region; elliptical and wide atrium ( Fig. 4G ). Internally with very short copulatory ducts; small seminal receptacles situated below the spermathecae; spermathecae large, rounded and close together ( Figs 4H ; 5I, J ).

Variation. Males (n=10): total length 3.8–6.5; carapace length 1.8–3.1; femur I length 1.6–2.35. Females (n=10): total length: 4.1–7.0; carapace length 1.85–3.0; femur I length 1.35–2.2.

Other material examined. BRAZIL. Mato Grosso do Sul: Anaurilândia (22°22’59”S; 52°48’42.4”W), Usina Hidrelétrica Engenheiro Sérgio Motta, 2♂, 15.XI.1998, Equipe IBSP leg. ( IBSP 23439 ) ; Paraná: Guaratuba (25°53’8.40”S; 48°34’35.46”W), Ilha do Jundiaquara , Baia de Guaratuba, 1♂, VIII.2006, R. Belmont & B.L. Reinert leg. ( IBSP 79971 ) ; São Paulo: Três Irmãos (20°40’6.16”S; 51°18’0.43”W), 1♂, X.1990, M. Costa & C. Bertim leg. ( IBSP 4877 ) ; Presidente Epitácio (21°46’0.69”S; 52°6’34.71”W), Usina Hidrelétrica Engenheiro Sérgio Motta, 1♂, 1♀, 16.I–13.II.1999, Equipe IBSP leg. ( IBSP 23274 ) ; Rosana, Primavera (22°28’41.02”S; 52°57’29.24”W), Usina Hidrelétrica Engenheiro Sérgio Motta, 1♀, I–II.2000, Equipe IBSP leg. ( IBSP 279587 ) ; 2♀, ( IBSP 279589 ) ; 1♀, ( IBSP 29715 ) ; 1♂, 2♀, ( IBSP 29716 ) ; Rio Grande do Sul: Montenegro (29°40’54.09”S; 51°28’4.97”W), 1♂, 01.IX.1977, H. Bischoff leg. ( MCN 6451 ) ; São Leopoldo (29°45’17.98”S; 51°9’1.02”W), 1♀, 30.VII.1982, C.J. Becker leg. ( MCN 10623 ) ; Triunfo (29°56’8.25”S; 51°42’44.71”W), 1♂, 13.I.1994, L.A. Moura leg. ( MCN 24793 ) ; Parque Copesul de Proteção Ambiental , 1♂, 1♀, 05.VII.2000, M.A.. L. Marques leg. ( MCN 32524 ) ; Rio Grande, Estação Ecológica do Taim (32°29’56.71”S; 52°34’52.75”W), 1♀, 01.XI.1980, A.A. Lise leg. ( MCN 15182 ) ; PARAGUAY, Presidente Hayes (23°26’33.01”S; 58°26’37.80”W) , Villa Hayes, Estancia La Asunción, 1♀, ( MNHN 8795 ) . ARGENTINA. Misiones: Santa Maria (27°56’5.63”S; 55°24’23.37”W), 1♀, XII.1947, T. M. Viana leg. (MACN-Ar 2550); Provincia Buenos Aires: Punta Lara (34°49’31.92”S; 57°57’56.13”W), 1♀, 07.VII.1946, (MACN-Ar) ; Buenos Aires, Paraná de Las Palmas (34°17’0.55”S; 58°35’22.90”W), 1♀, 25.III.1964, A.O. Bachman leg. (MACN-Ar) .

Distribution. Brazil (States of Mato Grosso, Mato Grosso do Sul, Paraná, Rio Grande do Sul and São Paulo), Argentina and Paraguay ( Fig. 13A ).

Figures

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 13 A–B. Distribution map of Otoniela species.