Caayguara pinda, Rheims, Cristina A., 2010

Rheims, Cristina A., 2010, Caayguara, a new genus of huntsman spiders from the Brazilian Atlantic Forest (Araneae: Sparassidae), Zootaxa 2630, pp. 1-29: 8-9

publication ID

http://doi.org/ 10.5281/zenodo.198317

persistent identifier

http://treatment.plazi.org/id/03CF8789-FFA7-0702-FF22-FF041506E21F

treatment provided by

Plazi

scientific name

Caayguara pinda
status

sp. nov.

Caayguara pinda  sp. nov.

Figs 19 –23, 72, 83

Type material. Holotype: ɞ from Fazenda Ranchinho da Roça [22 ° 30 ' S; 43 ° 10 ' W], Petrópolis, Rio de Janeiro, Brazil, 15–16 August 2001, Equipe Biota leg. ( IBSP 43199). Paratypes: 2 ɞ, 1 Ƥ, with the same data as holotype ( SMF; MNRJ); 1 Ƥ, Parque Nacional de Itatiaia [22 ° 19 ' S; 44 ° 35 ' W], Resende, Rio de Janeiro, Brazil, 08– 15 June 2001, Equipe Biota leg. ( IBSP 54524); 1 Ƥ, Reserva Ecológica de Guarapiassú [22 ° 27 ' S; 42 º 39 ' W], Cachoeiras de Macau, Rio de Janeiro, Brazil, 08– 12 November 2001, Equipe Biota leg. ( IBSP 54525); 2 ɞ, 2 Ƥ, Parque Nacional da Serra da Bocaína [22 ° 44 ' S; 44 º 37 ' W], São José do Barreiro, São Paulo, Brazil, 28 April – 0 3 May 2002, Equipe Biota leg. ( MZSP 31778–31779; IBSP 54306; 54304); 1 Ƥ, Parque Nacional da Serra dos Órgãos, Teresópolis [22 ° 27 ' S; 42 ° 59 ' W], 18–22 August 2001, Equipe Biota leg. ( MNRJ).

Additional material examined. BRAZIL. Espírito Santo: 2 Ƥ, Santa Teresa [19 ° 57 ' S; 40 ° 31 ' W] ( IBSP 45931; 94594); 1 Ƥ, Reserva Biológica Augusto Ruschi ( IBSP 121916); Rio de Janeiro: 2 Ƥ, Nova Friburgo [22 ° 16 ' S; 42 ° 31 ' W] ( MZSP 15134; 15259); 1 ɞ, Teresópolis [22 ° 24 ' S; 42 ° 57 ' W] ( MNRJ 10401); 2 ɞ, 4 Ƥ, Parque Nacional da Serra dos Órgãos [22 ° 27 ' S; 42 ° 59 ' W] ( IBSP 54491–54492; 54498; MNRJ 2098); 14 ɞ, 4 Ƥ, Petrópolis [22 ° 30 ' S; 43 ° 10 ' W], Fazenda Ranchinho da Roça ( IBSP 4319643198; 43200; 43202–43206; 43208–43211; 43213); 2 ɞ, Guapimirim, Estação Ecológica Paraíso [22 ° 31 ' S; 42 ° 59 ' W] ( MZSP 14995); 1 Ƥ, 2 juveniles, Magé [22 ° 39 ' S; 43 °02' W], Inhomirim, Fazenda Mandioca ( MZSP 15223); 5 ɞ, 2 Ƥ, 3 juveniles, Rio de Janeiro, Parque Nacional da Tijuca [22 ° 55 ' S; 43 ° 15 ' W] ( MNRJ 801; 839; 1533–1534; 42427); 2 ɞ, Pão de Açúcar [22 ° 56 ' S; 43 °09' W] ( MNRJ 989; 1535); 1 ɞ, Guanabara [22 ° 57 ' S; 43 ° 12 ' W] ( MZSP 20186); 2 Ƥ, 1 juvenile, Pedra da Gávea [22 ° 59 ' S; 43 ° 17 ' W] ( MNRJ 472); 2 ɞ, Mangaratiba, Ilha da Marambaia, [23 °03' S; 43 ° 58 ' W] ( IBSP 115631; 86549); 1 ɞ, Gruta da Santa, ( IBSP 28409); 3 Ƥ, Volta Redonda [23 ° 31 ' S; 44 °06' W], Floresta da Cicuta, ( IBSP 54014; 54019); São Paulo: 7 ɞ, 1 Ƥ, São José do Barreiro, Parque Nacional da Serra da Bocaína [22 ° 44 ' S; 44 ° 37 ' W] ( IBSP 54292; 54295–54296; 54299; 54301; 54556); 1 Ƥ, Miracatu [24 ° 16 ' S; 47 ° 27 ' W], Fazenda Iterei ( IBSP 54511).

Caayguara pinda  19 male, left palp, ventral view (ppl = pars pendula; sp = subdistal projection; tp = tegular projection; VTA = ventral tibial apophysis); 20 ditto, retrolateral view (bl = basal lobe; sl = subdistal lobe); 21 female, epigynum, ventral view; 22 ditto, vulva, dorsal view; 23 schematic course of internal duct system. Scale lines: 0.5 mm.

Etymology. The specific name is a noun in apposition taken from the Tupi Indian language that means “fish hook” and refers to the shape of the distal dorsal projection of the RTA of the male palp.

Diagnosis. Caayguara pinda  sp. nov. resembles C. albus (Mello-Leitão)  comb. nov. by the general conformation of the male palp, with the distal region of the embolus strongly curved and tegular projections arising medially close to the base of the conductor ( Figs 14View FIGURES 14 – 18, 19; tp), and female epigynum, with an anterior medium septum at least twice longer than wide ( Figs 16View FIGURES 14 – 18, 21). It can be distinguished from the latter species by the more slender RTA with a distal, long, slender hook (Figs 19–20) and a smaller, slightly triangular tegular projection (Fig. 19; tp) on the male palp, by the more trapezoid shape (slightly resembling an upside down guitar) of the median septum (Fig. 21; MS) in the female epigynum, and by the vulva with a smaller number of lobes in the posterior part of the copulatory duct (Fig. 22).

Description. Male ( IBSP 43199): Dorsal shield of prosoma, chelicerae, legs and pedipalps pale orange. Sternum cream colored with pale orange margins. Labium orange. Endites orange, distally cream colored. Opisthosoma cream colored, dorsally mottled with brown spots. Total length 7.4. Prosoma: 3.1 long, 2.7 wide. Opisthosoma: 4.1 long, 2.2 wide. Eye diameters: 0.20, 0.20, 0.16, 0.22; interdistances: 0.10, 0.02, 0.22, 0.20, 0.14, 0.10. Leg measurements: I: 20.8 (5.3, 1.8, 6.0, 5.6, 2.1); II: 23.8 (6.1, 2.0, 6.7, 6.6, 2.4); III: 15.8 (4.5, 1.4, 4.3, 4.2, 1.4); IV: 17.6 (4.9, 1.4, 4.8, 4.9, 1.6). Spination follows the generic pattern, except metatarsus IV: r 1 - 1-2. Palp ( Fig. 72View FIGURES 71 – 82): RTA with two small ventral lobes (Figs 19–20; sl, bl); dorsal projection absent (Fig. 20). Tegulum with small, slightly triangular projection (Fig. 19, tp). Embolus with distal region strongly curved and bifid, with subdistal rounded prolateral projections and no keels (Fig. 19; sp); pars pendula well developed (Fig. 19; ppl).

Female ( IBSP 43197): Coloration pattern as in male. Total length 12.0. Prosoma: 3.8 long, 3.6 wide. Opisthosoma: 7.7 long, 4.8 wide. Eye diameters: 0.24, 0.24, 0.18, 0.24; interdistances: 0.18, 0.06, 0.34, 0.32, 0.16, 0.14. Leg measurements: I: 17.5 (4.9, 2.0, 4.7, 4.4, 1.5); II: 19.3 (5.4, 2.1, 5.3, 4.8, 1.7); III: 13.6 (4.1, 1.7, 3.4, 3.2, 1.2); IV: 14.7 (4.4, 1.6, 3.7, 3.7, 1.3). Spination follows the generic pattern, except tibia IV: d0- 0- 1; metatarsus IV: r 1 - 1-2. Epigynum: epigynal field slightly rounded anteriorly, as long as wide; touching part of lateral lobes as long as median septum (Fig. 21). Vulva: pp short, with 4–5 lobes (Fig. 22); fd transversal, very slightly longer than pp (Figs 22–23).

Variation. Males (n = 10): total length 7.4–9.8; prosoma 3.1–4.4; femur I 5.3–6.6. Females (n = 10): total length 8.2 –12.0; prosoma 3.0– 4.3; femur I 4.3–5.4.

Distribution. Southeastern Atlantic Forest, from Nova Friburgo, Rio de Janeiro to Miracatu, São Paulo ( Fig. 83View FIGURE 83).

IBSP

Instituto Biologico de Sao Paulo

SMF

Forschungsinstitut und Natur-Museum Senckenberg

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Caayguara