Guriurius minuano Marta, Bustamante, Ruiz & Rodrigues, 2022

Marta, Kimberly S., Bustamante, Abel A., Ruiz, Gustavo R. S., Teixeira, Renato A., Hagopián, Damián, Brescovit, Antonio D., Valiati, Victor Hugo & Rodrigues, Everton N. L., 2022, A new huriine genus and notes on morphological characters (Araneae: Salticidae: Salticinae), Zootaxa 5124 (4), pp. 431-457 : 435-439

publication ID

https://doi.org/10.11646/zootaxa.5124.4.2

publication LSID

lsid:zoobank.org:pub:55967359-1F1E-4812-89F8-3205DC6DB37A

DOI

https://doi.org/10.5281/zenodo.6417666

persistent identifier

https://treatment.plazi.org/id/820579A9-6AF9-4BDA-A4E2-B31B86763931

taxon LSID

lsid:zoobank.org:act:820579A9-6AF9-4BDA-A4E2-B31B86763931

treatment provided by

Plazi

scientific name

Guriurius minuano Marta, Bustamante, Ruiz & Rodrigues
status

sp. nov.

Guriurius minuano Marta, Bustamante, Ruiz & Rodrigues , sp. nov.

urn:lsid:zoobank.org:act:820579A9-6AF-4BDA-A4E2-B31B86763931

Figs 1–24 View FIGURES 1–8 View FIGURES 9–14 View FIGURES 15–20 View FIGURES 21–26 , 59–60 View FIGURES 59–64 , 65–67, 69–78 View FIGURE 65–70 View FIGURES 71–76 View FIGURES 77–78

Type material. Holotype. ♂ ( MCN 32225), BRAZIL: Fazenda Chapada [30º25’23.5”S 52º18’41.4”W], Dom Feliciano , Rio Grande do Sul, 18–19.III.2000, A.B. Bonaldo leg. GoogleMaps Paratypes. 1 ♂ ( UFMG 6459 ), BRAZIL: São Paulo: Jundiaí, Parque Estadual da Serra do Japi (23°17’00.0”S 46°59’00.0”W), XII.2007, Jack leg. GoogleMaps ; 1 ♂ ( MCTP 38963 ), BRAZIL: Paraná: São José dos Pinhais, Miringuava [25°36’18.0”S 49°11’37.0”W], 02.I.2014, A.C. Domahovski leg. GoogleMaps ; 1 ♂ (94/010 ZUFSM: Temporarily at MPEG), BRAZIL: Rio Grande do Sul: Santa Maria, Taquarixim [29°44’17.6”S 53°50’38.3”W], 07.X.2003, A.B.B. Morais leg. GoogleMaps ; 1 ♀ ( MCTP 40587 ), BRAZIL: Santa Maria [29°39’00.1”S 53°47’00.6”W], 24.XII.1995, C.B. Kotzian & L. Indrusiak leg. GoogleMaps ; 1 ♀ ( MCTP 21675 ), BRAZIL: Rio Grande do Sul: Itaara [29°36’57.2”S 53°45’30.9”W], 27.X.2005, L. Indrusiak leg. GoogleMaps ; 1 ♂, ( MCTP 20285 ), BRAZIL: Rio Grande do Sul: Novo Cabrais, Parque Witeck [29°46’59.0”S 52°58’18.9”W], 03.I.2008, R.G. Buss leg. GoogleMaps ; 1 ♂ (MACN-Ar 39436), ARGENTINA: Buenos Aires: Punta Indio [35°16’12.0”S 57°15’36.0”W], C.L. Scioscia leg. GoogleMaps , 16–19.XI.1991.

Etymology. The specific epithet honors the Minuano ethnic group. The indigenous name is a reference to a wind of polar origin (Atlantic polar air mass) with a southwest orientation that blows in the state of Rio Grande do Sul, where this species is widespread. Noun in apposition.

Diagnosis. Males of G. minuano can be recognized by the squared lower edge of RvTA (See arrow in the Figs 5 View FIGURES 1–8 , 21 View FIGURES 21–26 ). Females of G. minuano can be recognized by the presence of a chitinized plate dorsally on the epigyne, covering half of the copulatory ducts (= genus diagnosis; see arrow in the Figs 14 View FIGURES 9–14 , 24 View FIGURES 21–26 ), spermathecae positioned anterior to the atrium region ( Figs 13 View FIGURES 9–14 , 23, 24 View FIGURES 21–26 ) and the pair of large LPO, arranged in parallel on the posterior border of epigyne ( Figs 14 View FIGURES 9–14 , 24 View FIGURES 21–26 ).

Description. Male (Holotype MCN 32225). Total length: 4.42. Carapace length: 1.92; width: 1.3; height: 0.84. Cephalic region length: 1.56; thoracic region length: 0.46. Ocular area length: 0.35; Anterior eyes row: 1.3 wide; Posterior eyes row: 1.3 wide; Distance ALE–PME: 0.10; PME–PLE: 0.25; Ocular diameter AME: 0.42; ALE: 0.21; PME: 0.06; PLE: 0.14. Clypeus height: 0.12. Chelicerae, paturon length: 0.46; 0.31 wide; Fang: 0.31 length. Endites length: 0.35; 0.31 wide. Labium length: 0.21; 0.29 wide. Sternum length: 0.84; 0.52 wide. Abdomen length: 2.31; 1.36 wide; height: 1.26. Legs: length of femur I: 1.26; II: 1.05; III: 0.94; IV: 1.05; patella I: 0.84; II: 0.63; III: 0.42; IV: 0.52; tibia I: 1.05; II: 0.63; III: 0.63; IV: 0.77; metatarsus I: 0.84; II: 0.63; III: 0.63; IV: 0.63; tarsus I: 0.46; II: 0.37; III: 0.42; IV: 0.42. Leg formula: 1423. Palp, length of femur: 0.52, patella: 0.25, tibia: 0.21, cymbium: 0.50. Palp macrosetae, femur: d0-1-0. Legs macrosetae, femur I–II: d1-1-1, p1di, r0; III: d0-1-1, p2di, r1; IV: d1-1-1, p1, r1, patella I: 0; II: p1, r0; III–IV: 0, tibia I–II: p1di, r0-1-1, v0; III: p1di, r0-1-1, v1pdi; IV: p1di, r1-1-1, v2pdi and metatarsus I: v0-2-2; II: v0-2-2; III: v0-0-2, p2di, r2di; IV: v0-0-2, p0-2-2, r0-2-2. Carapace: reddish-brown. Eyes with white scales between AME ( Fig. 4 View FIGURES 1–8 ). Clypeus brown, with a line of brown scales and few sparse white scales. Chelicera without ornamentations, not divergent, with four promarginal teeth, with the distal tooth reduced and a single retromarginal tooth. Endites without projections, few yellow setae, lighter apex, and rounded edges ( Fig. 2 View FIGURES 1–8 ). Labium with posterior region darkened and lighter apex, as wide as long ( Fig 2 View FIGURES 1–8 ). Sternum orange, truncated, and shaped as inverted pentagon ( Fig. 2 View FIGURES 1–8 ). Legs: yellow. Palp: femur yellow, laterally with median dark spots on both sides. RTA without lobes, thick and sinuous (in lateral view) at the tip, sclerotinized, conspicuous, half the size of the tegulum ( Figs 8 View FIGURES 1–8 , 22 View FIGURES 21–26 ). RvTA inserted ventrally, below the tegulum, with retrolateral inclination, few white scales on the dorsum and with ventral part, hooked-shaped with square base, tip curved towards tegulum (distal portion) (see arrows in the Figs 5 View FIGURES 1–8 , 21 View FIGURES 21–26 ). Dorsal cymbium suboval. Tegulum circular, inclined obliquely in relation to the apex of the cymbium (5, 21). Embolar base dorso-prolateral (7:00 o’clock), embolar path around the tegulum 180º ( Figs 5, 7 View FIGURES 1–8 , 21 View FIGURES 21–26 ). Abdomen: dorsally with brown chevrons, as described for the genus. Spinnerets: yellow as legs.

Female (Paratype MCTP 40587). Length: 5.2 Carapace length: 1.76; width: 1.35; height: 0.78. Cephalic region length: 1.19; Thoracic region length: 0.62. Ocular area length: 0.57; Anterior eyes row: 1.32 wide; Posterior eyes row: 1.40 wide; Distance ALE–PME: 0.12; PME–PLE: 0.31; Ocular diameter AME: 0.46; ALE: 0.21; PME: 0.06; PLE: 0.21. Clypeus height: 0.10. Chelicerae, paturon length: 0.50; 0.31 wide; Fang: 0.21 length. Endites length: 0.25; 0.25 wide. Labium length: 0.14; 0.23 wide. Sternum length: 0.78; 0.46 wide. Abdomen length: 3.12; 1.74 wide, height: 1.69. Legs, femur length I: 0.73; II: 0.63; III: 1.05; IV: 1.05; patella I: 0.63; II: 0.52; III: 0.52; IV: 0.42; tibia I: 0.48; II: 0.73; III: 0.67; IV: 0.73; metatarsus I: 0.31; II: 0.42; III: 0.73; IV: 0.63; tarsus I: 0.33; II: 0.31; III: 0.42; IV: 0.42. Formula legs: 4321. Palp, femur length: 0.42, patella: 0.23, tibia: 0.25, tarsus: 0.33. Legs macrosetae, femur I–II: d1-1-1, p1di; III: d0-1-1, p1di, r1di; IV: d0-1-1, p1di, r1di, patella I–IV: 0, tibia I–II: v0-0-2; III: v0- 1p-2di; IV: p1di, r1-1-1, v0-1p-2 and metatarsus I–III: v0-2-2; IV: v0-0-2, p0-1-2, r1-1-1. Carapace dark reddishbrown, with yellow setae on laterals and on the thoracic region, as in male ( Figs 9, 11 View FIGURES 9–14 ). Clypeus dark-reddish brown, with white scales around AME ( Fig. 12 View FIGURES 9–14 ). Chelicerae, promargin with four fused teeth, distal tooth reduced, and retromargin with one tooth. Endites as in male. Labium wide, brown and with lighter apex. Sternum shaped as in male, but brown. Legs: dark yellow. Abdomen: dorsum grey, with brown chevrons, ventrally and sides as in male, but darker. Epigyne: copulatory openings C-shaped, forming an atrium in the medial region of the epigyne ( Figs 13 View FIGURES 9–14 , 23 View FIGURES 21–26 ). Copulatory ducts arranged in parallel and close to each other in the medial region and can be visualized in ventral view, through the atrium, and anterior to the atrium ( Figs 13 – 14 View FIGURES 9–14 , 23–24 View FIGURES 21–26 ). Spermathecae kidney-shaped with the base of fertilization duct placed on anterior/dorsal surface of spermathecae, close together, and fertilization ducts extend anteriorly to the sides ( Figs 14 View FIGURES 9–14 , 24 View FIGURES 21–26 ). Spinnerets: coloration as legs.

Other material examined. BRAZIL: Rio Grande do Sul: Cachoeira do Sul, Cordilheira [30°13’09.8”S 52°50’57.4”W], 1 ♂ (ex-ZUFSM 91/010; used in SEM images), VII.1992, R.G. Buss leg. GoogleMaps ; URUGUAY: Rivera, Represa de OSE A [30°51’42.1”S 55°37’06.1”W], 2 ♀ (FCE-Ar 2982, FCE-Ar 4084), 29–30.X.2010 GoogleMaps , M. Simó et al. leg.; Montevideo, Parque Lecocq [34°47’31.3”S 56°19’56.9”W], 1 ♂ (FCE-Ar 9470), 12.V.2018, L. Morena leg. GoogleMaps , manually collected in monoculture of Eucalyptus sp. ; Florida, Rincón de Vignoli, Estancia “La Rinconada“ [34°19’42.4”S 56°19’40.6”W], 1 ♂ (FCE-Ar 11639), 31.X.2020, A. Mailhos leg. GoogleMaps ; Río Negro, Estancia “Las Cadenas“ [32°30’59.5”S 58°03’00.5”W], 2 ♀ and 1 ♂ (FCE-Ar 11739), 01.V.2020, A. Mailhos leg. GoogleMaps ; 1 ♀ (FCE-Ar 11740), collected in Riparian forest , 29.VI.2020, A. Mailhos leg. ; El Matorral, Montes Del Plata [34°13’29.6”S 58°02’59.5”W], 1 ♂ (FCE-Ar 11713), collected by G-Vac, 27.V.2020, M. Simó leg. GoogleMaps ; Lavalleja, Cerro Arequita [34°17’16.41”S 55°16’7.31”W], 1 ♀ (FCE-Ar 11662), 12.XI.2005, M. Simó leg. GoogleMaps ; Cerro Largo, Arévalo, UPM Forestal Oriental [32°29’09.5”S 55°02’49.8”W], 1 ♂ (FCA-Ar 19043), manually collected in Riparian Forest , 24.V.2020, M. Simó leg. GoogleMaps

Distribution. Southern Brazil [São Paulo, Paraná, Rio Grande do Sul], Uruguay [Montevideo, Florida, Río Negro, Lavalleja, Cerro Largo], and Argentina [Buenos Aires] ( Figs 77–78 View FIGURES 77–78 ).

Natural history. Some specimens were collected with a beating tray and/or G-Vac and can be considered of arboreal and shrub niche. Some were collected manually, found in Eucalyptus sp. plantations and edges of Riparian Forests. Some juveniles were found foraging, hanging by a thread of silk at night in branches of trees and shrubs in riparian forests. In addition, the altitudinal occurrence of this species is 4–1000 m. a. s. l. ( Figs 77 – 78 View FIGURES 77–78 ).

MCN

McNeese State University

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Guriurius