Guasuctenus vittatissimus ( Strand, 1916 )

Polotow, Daniele & Brescovit, Antonio D., 2019, Guasuctenus gen. nov., a new Neotropical spider genus of Ctenidae (Araneae), Zootaxa 4624 (4), pp. 539-550 : 546-548

Guasuctenus vittatissimus ( Strand, 1916) new rank, new comb.

Figs 6–8

Ctenus longipes vittatissimus Strand, 1916: 130 , 131 (one female lectotype and two immature paralectotypes, here designated, from Joinville, Santa Catarina, Brazil, W. Ehrhardt coll., deposited in SMF 4541 and 4561, respectively, examined). World Spider Catalog 2019.

Diagnosis. Males of Guasuctenus vittatissimus ( Fig. 7A ) can be distinguished from G. longipes ( Fig. 5A ) by the median apophysis and base of embolus smaller, locking lobes of embolus visible in ventral view, and RTA larger and truncated. Females of Guasuctenus vittatissimus ( Figs 6B , 7C ) can be distinguished from G. longipes ( Figs 4B , 5C ) by the median field of epigynum wider than longer, and lateral projections of the epigynum shorter and pointing ventrally.

Description. Male (MHCI 3504). Carapace, sternum, endites, labium, and legs light brown; chelicerae reddish brown, with basal condyle light brown; opisthosoma with light brown venter and dorsum dark brown with a lighter longitudinal band. Total length 16.7. Carapace 10.0 long and 7.6 wide. Clypeus 0.32 high. Eye diameters: AME 0.35, ALE 0.37, PME 0.40, PLE 0.44. Leg measurements: I: femur 12.3/ patella 4.8/ tibia 12.9/ metatarsus 12.3/ tarsus 5.2/ total 47.5; II: 11.1/ 4.8/ 10.5/ 10.5/ 4.1/ 41.0; III: 9.6/ 4.1/ 8.6/ 9.4/ 3.8/ 35.5; IV: 12.2/ 4.1/ 12.4/ 14.7/ 4.8/ 48.2. Leg formula 1423. Leg spination: tibia I and II v2-2 -2-2-2, r0-1-0, p0-1-0; III and IV v2-2 -2, r1-1, p1-1; metatarsus I and II v2-2 -2, r0-1-0, p0-1-0; III v2-2 -2, p1-1-1, r1-1-1; IV v1-1 -1-1-1-2, r1-1-1, p1-1-1. Palp ( Figs 6A , 7 A–B): tibia straight with short RTA; cymbium elongated, slightly longer than tibia; dorsal cymbial apophysis with large base and pointed tip; embolus with large base and curved retrolaterally, with laminar locking lobes visible ventrally; conductor wider than long; tegulum not projected; median apophysis with oblique base.

Female. (MHCI 3505). Coloration as in male. Total length 26.8. Carapace 11.8 long and 9.1 wide. Clypeus 0.55 high. Eye diameters: AME 0.37, ALE 0.37, PME 0.38, PLE 0.40. Leg measurements: I: femur 10.7/ patella 5.5/ tibia 10.2/ metatarsus 8.6/ tarsus 3.5/ total 38.5; II: 10.0/ 5.0/ 8.6/ 8.1/ 3.3/ 35.0; III: 8.9/ 4.2/ 7.3/ 7.7/ 3.3/ 31.4; IV: 11.1/ 4.5/ 9.4/ 11.9/ 3.8/ 40.7. Leg formula 4123. Leg spination: tibia I and II v2-2 -2-2-2, r0, p0; III and IV v2-2 -2, r1-1, p1-1; metatarsus I and II v2-2 -2, r0, p0; III v2-2 -2, r1-1-1, p-1-1-1; IV v1-1 -1-1-1-2, r1-1-1, p1- 1-1. Epigynum ( Figs 6B , 7 C–D): median field wider than long, with large lateral excavations and setae covering central area; lateral fields bearing robust lateral projections; copulatory ducts curved inward; base of spermathecae bean-shaped and head of spermathecae small and covered by the base of spermathecae; fertilization ducts laminar. Variation. 10 males: total length: 16.9–20.8; carapace length: 9.0–10.9; femur I length: 10.3– 12.2. 10 females: total length: 18.8–28.8; carapace length: 8.9–13.2; femur I length: 7.9–11.5. Embolus with ( Fig. 6A ) or without ( Fig. 7A ) retrolateral projection.

Additional material examined. BRAZIL. Rio de Janeiro . Rio de Janeiro ( Jardim Botânico , -22.967, -43.225), 1 female, V.1909, W. Jungmann coll. ( SMF) . São Paulo. Viradouro (-20.871, -48.295), 1 female, II.1950, A. Cruz coll. ( IBSP 1055 ) ; Amparo ( Arcadas , -22.724, -46.838), 1 female, 24.V.1990 ( IBSP 14103 ) ; Morungaba (-22.883, -46.788), 1 female, 15.IV.2002, R. Rodrigo coll. ( IBSP 34985 ) ; Tietê (-23.095, -47.712), 1 female, XII.994, A.A. Moraes coll. ( IBSP 6032 ) ; Itu (-23.264, -47.293), 1 female, 23.VII.1973, R. D’Ávila coll. ( IBSP 8136 ) ; 1 female, 6.V.1999, R. D’Ávila coll. ( IBSP 23557 ) ; Guararema (-23.414, -46.034), 1 female, 2.II.1970, J.C. Pestana coll. ( IBSP 2441 ) ; Itapetininga (-23.589, -48.033), 1 female, 3.XII.2001, C. Antonio coll. ( IBSP 34982 ) ; Piedade (- 23.711, -47.417), 1 female, 20.VII.2001, M. Datu coll. ( IBSP 29257 ) ; Ibiúna (-23.792, -47.196), 1 male, 11.III.1980, M. Issler coll. ( IBSP 1360 ) ; 1 female, 2.VII.2001, F.S. Takamura coll. ( IBSP 32158 ) ; Cotia (-23.606, -46.904), 1 female, IV.1984, L. Berginarra coll. ( IBSP 4679 ) ; Caucaia do Alto (-23.699, -47.019), 1 female, III.1960, U.M. Silva coll. ( IBSP 1510 ) ; Embú-Guaçu (-23.843, -46.821), 2 males, III.1995, C. Casoy col. ( IBSP 5982 , 6188 ) ; Itapecerica da Serra (-23.733, -46.856), 2 males, 13.III.1972, M. Grassmann coll. ( IBSP 2532 ) ; 1 male, I.1991, L. Jost coll. ( IBSP 5050 ) ; 1 female, 24.X.2000, D. Rocha col. ( IBSP 27333 ) ; 1 male, 27.III.2000, J.A. Nogueira coll. ( IBSP 27482 ) ; São Paulo (-23.562, -46.642), 1 female, IV.1974, A. Toth coll. ( IBSP 2722 ) ; 1 female, 29.XII.1998, F.C. Pioker coll. ( IBSP 20317 ); ( Itaquera , -23.544, -46.455) , 1 female, 30.V.1993, A.H. Souza coll. ( IBSP 8055 ); ( Santo Amaro , -23.651, -46.705) , III.1995, R. Sales coll. ( IBSP 6026 ); (Reservatório Guarapiranga, Ilha dos Eucaliptos , -23.733, -46.733) , 5 males, 8 females, 7−13.X.2004, I. Cizauskas & C.R.M Garcia coll. ( IBSP 65614 , 65616−65620 , 65622−65625 ) ; Salesópolis (-23.584, -45.842), 1 female, 8–10.IV.2000, A.D. Brescovit coll. ( IBSP 27082 ) ; Pilar do Sul (-23.849, -47.729), 1 female, IX.1985, E. Oliveira coll. ( IBSP 4693 ) ; São Lourenço da Serra (-23.855, -46.939), 1 female, 10.X.1979, R. Bush coll. ( IBSP 8542 ); (Sítio Estrela) , 1 male, III.1976, G.J. Abdo coll. ( IBSP 5171 ) ; Juquitiba (-23.946, -47.037), 1 female, VIII.1991, V.B. Oliveira coll. ( IBSP 5825 ) ; 1 female, III.1982, A. Dib coll. ( IBSP 3144 ) ; 1 female, II.1986, A. Bosseto col. ( IBSP 4983 ) ; 1 female, VI.1984, A. Barberini coll. ( IBSP 4681 ) ; São Vicente ( Ilha Porchat , -23.977, -46.371), 1 female, 9.V.1967, E. Bozaciyan coll. ( IBSP 2070 ) ; Ribeirão Grande (-24.172, -48.363), 1 male, 23.IV.1996, A. Nogueira coll. ( IBSP 7614 ) ; Juquiá (-24.317, -47.634), 1 female, 3. VI.1986, V.R. Costa coll. ( IBSP 8524 ) ; Miracatu (-24.199, -47.407), 1 female, 9.V.1972 ( IBSP 2542 ) ; 1 female, IX.1985, M. Olani coll. ( IBSP 4694 ) ; Mongaguá (-24.110, -46.676), 1 male, VII.1971, A. Maia coll. ( IBSP 2433 ) ; São Sebastião ( Ilha de Alcatrazes , -24.100, -45.692), 1 male, 3 females, VI.1950, IBSP team coll. ( IBSP 994 , 1088 ) ; 1 male, 4 females, XII.1996, R. Bertani coll. ( IBSP 7887 , 7888 ) ; Itanhaém (-24.152, -46.824), 1 female, IV.1978, W. Francisco coll. ( IBSP 4698 ) ; Capão Bonito (-24.154, -48.288), 1 female, IX.2002, P. Caruso coll. ( IBSP 41285 ) ; Eldorado ( Parque Estadual Intervales , -24.326, -48.192), 1 female, IX.2001, D. Peccinini coll. ( IBSP 14934 ) ; Iporanga (-24.584, -48.593), 1 female, V.1986, I.H. Waligora coll. ( IBSP 4180 ); ( Parque Estadual Intervales , -24.308, -48.274) , 1 female, 31.VIII.2001, F.P. Franco coll. ( IBSP 36324 ); ( Parque Estadual Turístico do Alto Ribeira , -24.543, -48.682) 1 male, 10.IV.2001, F. Pellegatti-Franco coll. ( IBSP 27897 ) ; Iguape (-24.558, -47.437), 1 male, 1 female, 12–18.VII.2004, Equipe Biota coll. ( IBSP 44858 ) . Paraná. Piraí do Sul (-24.506, - 49.946), 1 female, 15.I.1935, G. Fonseca coll. ( IBSP 153 ) ; Castro (-24.797, -50.001), 1 female, XII.1958, A. May- er coll. ( MHCI 4221 ) ; Guaraqueçaba, ( Parque Nacional de Superagüi , -25.340, -48.170) 12 males, 7 females, 1 immature, 12−14/XII/2016, M. Rincão coll. ( IBSP 215866 ; 215908, 215923, 215926, 215930, 215934−215935, 215937, 215945, 216086, 216096, 216099, 216104−216105, 216116−216117, 217755, 217760−217761, 217765) ; Candói / Mangueirinha ( Usina Hidrelétrica de Segredo , Reservatório do Rio Jordão , -25.793, -52.109), 1 female, 24.IV–4.V.1996, R. Bertani coll. ( IBSP 7209 ) ; Palmeira (-25.426, -50.003), 1 female, 26.III.1951, J.B. Bastos coll. ( IBSP 652 ) ; Curitiba (-25.461, -49.284), 2 males, R. Lange coll. ( MHCI 1015 , 1016 ) ; 1 female, 1942, R. Lange coll. ( MHCI 1558 ) ; 1 male, 5. VI.1966, E. Rosal coll. ( MHCI 4501 ) ; 1 male, 24/III/1968, A. Mayer coll. ( MHCI 4629 ) ; 1 male, 4.III.1968, E. Rosal coll. ( MHCI 4681 ) ; 1 female, XI.2001, E. Ramires coll. ( IBSP 35896 ) ; 1 female, V.2002, E. Ramires coll. ( IBSP 38183 ) ; Piraquara (-25.452, -49.067), 1 male, 1 female, II.1945, B. Hertel coll. ( MHCI 1584 , 1585 ) ; 1 female, V.1985, E. Guimarães coll. ( IBSP 4690 ); ( Volta Grande , -25.450, -49.054) 1 male, 1 female, B. Hertel coll. ( MHCI 3504 , 3505 , drawings and measurements) ; Araucária (-25.583, -49.399), 1 female, 18.III.1952, C. Halssemann coll. ( IBSP 686 ) ; Matinhos (-25.791, -48.534), 1 male, I.1986, F. Straube coll. ( MHCI 1587 ) ; Mallet (-25.895, -50.841), 1 female, 31.X.1934, H.L. José coll. ( IBSP 426 ) ; 1 female, 4.VII.1973, M.M. Domaradsky coll. ( IBSP 2673 ) ; Tijucas do Sul (-25.925, -49.178), 2 females, 27.VII–30.IX.2000, J. Ricetti coll. ( IBSP 39098 , 39132 ); ( Lagoa , -25.954, -49.218) 1 female, 14.II.2001, J. Ricetti coll. ( IBSP 39205 ) ; 1 female, 28.X.2001, J. Ricetti coll. ( IBSP 39131 ) ; União da Vitória (-26.221, -51.058), 1 male, 11.III.1935, A. Zeiger coll. ( IBSP 422 ) ; 1 female, 20.X.1967, B. Behr coll. ( IBSP 2082 ) ; 5 females, 1970, V. Eickstedt coll. ( IBSP 2503 ) ; Pinhão ( Usina Hidrelétrica Foz do Areia , -26.006, -51.669), 2 females, IV.1980 ( IBSP 2217 ) ; 4 females, 20–23.IV.1980, IBSP team coll. ( IBSP 10504 , 10521 , 10536 ) . Santa Catarina. Mafra (-26.124, -49.817), 1 female, 13.IX.1948, A. Souza coll. ( IBSP 103 ) ; 1 female, IX/1948, A. Souza coll. ( IBSP 3197 ) ; 1 female, II.1956, A. Souza coll. ( IBSP 1211 ) ; Porto União (- 26.239, -51.081), 1 female, XI.1996, E.J. Sanches coll. ( IBSP 16236 ); (Lança) 1 female, 8.III.1935, G. Perske coll. ( IBSP 154 ) ; Corupá (-26.435, -49.245), 1 male, 25.III.1949, G. Roeder coll. ( IBSP 208 ) ; Blumenau ( Parque Natural Municipal Nascentes do Garcia , -27.016, -49.150), 1 female, 21−28.I.2003 ( IBSP 127441 ) ; Florianópolis (Reserva Biológica Marinha Arvoredo, -27.225, -48.365), 1 female, 13–14.X.1994, A.A. Lise coll. ( MCTP 5110 ); ( Ilha do Arvoredo , -27.281, -48.366) , 1 female, 15–16.X.1993, A.A. Lise coll. ( MCTP 4050 ) ; Rancho Queimado (-27.682, -49.081), 2 females, XI/1995, A.B. Bonaldo coll. ( MCN 26735) .

Distribution. Southern and southeastern Brazil ( Fig. 8 ).

Figures

FIGURE 4. Guasuctenus longipes (Keyserling, 1891), female. A, claw of left pedipalp, prolateral view; B, epigynum, ventral view; C, female internal genitalia, dorsal view; D, right spermathecae, dorsal close-up view.

FIGURE 5. Guasuctenus longipes (Keyserling, 1891). A–B, male palp. A, ventral view; B, retrolateral view. C, epigynum, ventral view; D, female internal genitalia, dorsal view.

FIGURE 6. Guasuctenus vitattissimus (Strand, 1916).A, male palp, ventral view, with arrow pointing retrolateral projection of the embolus.; B, epigynum, ventral view, with arrow pointing posterior lateral excavations.

FIGURE 7. Guasuctenus vitattissimus (Strand, 1916). A–B, male palp. A, ventral view; B, retrolateral view. C, epigynum, ventral view; D, female internal genitalia, dorsal view.

FIGURE 8. Collection localities of Guasuctenus species. A, South America; B, close up on southeastern South America. Legend: black circles = Guasuctenus longipes (Keyserling, 1891); white triangles = Guasuctenus vitattissimus (Strand, 1916).