Caayguara apiaba, 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: 12-14

publication ID

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

persistent identifier

http://treatment.plazi.org/id/03CF8789-FFAB-0707-FF22-FB3E1188E50F

treatment provided by

Plazi

scientific name

Caayguara apiaba
status

sp. nov.

Caayguara apiaba  sp. nov.

Figs 34 –38View FIGURES 34 – 38, 75View FIGURES 71 – 82, 84View FIGURE 84

Type material. Holotype: ɞ from Parque Nacional da Serra do Caparaó [20 ° 25 ' S; 41 ° 52 ' W], Alto Caparaó, Minas Gerais, Brazil, 01–07 May 2002, Equipe Biota leg. ( IBSP 54066). Paratypes: 1 Ƥ, with the same data as holotype ( MZSP 31788); 1 ɞ, 1 Ƥ, Parque Estadual de Itaúnas, Conceição da Barra [18 º 22 ' S; 39 º 41 ' W], Espírito Santo, Brazil, 15 December 2002 – 0 6 March 2003, Equipe Biota leg. ( IBSP 54313; MZSP 31787); 1 Ƥ, Santa Teresa [19 ° 55 ' S; 40 ° 35 ' W], Espírito Santo, April – September 2005, T. Gonçalves-Souza leg. ( IBSP 99996); 1 ɞ, 1 Ƥ, Reserva Biológica Augusto Ruschi [19 ° 54 ' S; 40 ° 33 ' W], Santa Teresa, Espírito Santo, April – August 2006, T. Sousa, T. Bernabé & E. Soueiro legs. ( IBSP 121301; SMF); 1 ɞ, Reserva Florestal Municipal Morro do Aricanga [19 ° 49 ' S; 40 ° 16 ' W], Aracruz, Espírito Santo, 14–16 October 2006, T. Sousa et al. leg. ( SMF).

Additional material examined. BRAZIL. Bahia: 1 Ƥ, Boa Nova [14 ° 21 ' S; 40 ° 12 ' W] ( IBSP 66227); 1 ɞ, Uruçuca [14 ° 35 ' S; 39 ° 17 ' W], Fazenda Santa Tereza ( MNRJ); 2 Ƥ, Ilhéus [14 ° 49 ' S; 39 °02' W], Reserva do CEPLAC ( IBSP 19146); 1 Ƥ, Jussari [15 ° 10 ' S; 39 ° 29 ' W], Reserva Natural da Serra do Teimoso, Fazenda Teimoso ( IBSP 35167); 1 ɞ, Fazenda São Francisco ( MNRJ 13104); 2 Ƥ, Itapetinga [15 ° 15 ' S; 40 ° 15 ' W], Parque Municipal da Matinha ( IBSP 52146; 66506); 1 ɞ, Porto Seguro [16 ° 27 ' S; 39 °03' W], Parque Nacional do Monte Pascoal ( IBSP 18512); 3 ɞ, 5 Ƥ, 10 juveniles, Fazenda São José ( MNRJ 1706); Espírito Santo: 1 Ƥ, Conceição da Barra [18 º 22 ' S; 39 º 41 ' W], Parque Estadual de Itaúnas ( IBSP 54318); 2 ɞ, 1 juvenile, Linhares [19 ° 23 ' S; 40 °06' W], Reserva Florestal da Vale do Rio Doce ( IBSP 12987; 24323); 2 Ƥ, Aracruz [19 ° 49 ' S; 40 ° 16 ' W], REFMU David Victor Farina ( IBSP 135151); 2 ɞ, 1 juvenile, Santa Teresa, Reserva Biológica Augusto Ruschi [19 ° 54 ' S; 40 ° 33 ' W] ( IBSP 121301; 121552); 1 ɞ, 3 Ƥ, Santa Teresa [19 ° 55 ' S; 40 ° 35 ' W] ( IBSP 99994–99995; 58750); 1 ɞ, Estação Ecológica de Santa Lucia ( IBSP 121218); Minas Gerais: 1 ɞ, 1 Ƥ, Alto Caparaó [20 ° 25 ' S; 41 ° 52 ' W], Parque Nacional da Serra do Caparaó ( IBSP 54063–54064).

Etymology. The specific name is taken from the Tupi Indian language that means “spotted” and denotes the mottled aspect of the opisthosoma, legs and chelicerae. Unchangeable.

Diagnosis. The males of Caayguara apiaba  sp. nov. resemble those of C. ajuba  sp. nov. and C. juati  sp. nov. by the general conformation of the palp, with the RTA with a single subdistal ventral lobe and a slender dorsal projection ( Figs 24–25View FIGURES 24 – 28; 29 –30, 34– 35; sl, dp) and by the prolateral subdistal keel on the embolus ( Figs 24View FIGURES 24 – 28, 29View FIGURES 29 – 33, 34View FIGURES 34 – 38; sk). It can be distinguished from the latter two species by the larger subdistal prolateral keel of the embolus of the palp and smaller dorsal projection of the RTA ( Fig. 34View FIGURES 34 – 38; sk, dp). The females resemble those of C. juati  sp. nov. by the triangular shape of the median septum of the epigynum ( Figs 26View FIGURES 24 – 28, 36View FIGURES 34 – 38), but are distinguished from the latter by the less divergent lateral borders, forming a right angle, by the touching part of the lateral lobes slightly longer than median septum ( Fig. 36View FIGURES 34 – 38) and by the large number of lobes in the posterior part of the copulatory duct ( Fig. 37View FIGURES 34 – 38).

Description. Male ( IBSP 54066): Dorsal shield of prosoma orange, brown along fovea, with black spots at the base of setae of thoracic striae. Eye borders black. Chelicerae orange with scattered black spots. Legs pale orange mottled with black spots. Pedipalps pale orange. Sternum cream colored with orange margins. Labium dark brown, distally cream colored. Endites orange with brown margins. Opisthosoma grayish brown, dorsally with scattered reddish brown spots. Total length 8.5. Prosoma: 3.7 long, 3.5 wide. Opisthosoma: 4.7 long, 2.6 wide. Eye diameters: 0.24, 0.20, 0.18, 0.24; interdistances: 0.12, 0.06, 0.30, 0.28, 0.14, 0.14. Leg measurements: I: 23.3 (6.0, 2.4, 6.6, 6.1, 2.2); II: 25.9 (6.8, 2.3, 7.5, 6.9, 2.4); III: 18.7 (5.1, 1.8, 4.6, 4.2, 1.5); IV: 19.2 (5.6, 1.5, 5.1, 5.3, 1.7). Spination follows the generic pattern. Palp ( Fig. 75View FIGURES 71 – 82): RTA simple with no basal lobe and slightly pronounced subdistal lobe ( Fig. 35View FIGURES 34 – 38, sl); dorsal projection shorter than RTA ( Fig. 34View FIGURES 34 – 38, dp). Tegulum smooth, without projections. Embolus with distal region slightly rectangular and bifid, with large subdistal prolateral keel ( Fig. 34View FIGURES 34 – 38, sk) and no subdistal retrolateral projection; pars pendula inconspicuous.

Female ( IBSP 54313): Coloration pattern as in male. Total length 6.8. Prosoma: 2.8 long, 2.8 wide. Opisthosoma: 4.0 long, 2.2 wide. Eye diameters: 0.18, 0.14, 0.12, 0.14; interdistances: 0.22, 0.06, 0.34, 0.26, 0.22, 0.18. Leg measurements: I: 14.3 (3.8, 1.4, 4.0, 3.9, 1.2); II: 16.8 (4.7, 1.6, 4.8, 4.3, 1.4); III: 10.9 (3.2, 1.2, 2.9, 2.7, 0.9); IV: 12.7 (3.7, 1.2, 3.3, 3.4, 1.1). Spination follows the generic pattern, except tibia IV: d0- 0- 1. Epigynum: epigynal field rounded, as long as wide; median septum triangular, as long as wide ( Fig. 36View FIGURES 34 – 38). Vulva: pp very long, with 12–14 linearly arranged lobes ( Fig. 37View FIGURES 34 – 38); fd longitudinal, only 1 / 3 of pp length ( Figs 37–38View FIGURES 34 – 38).

Variation. Males (n = 10): total length 6.1–9.8; prosoma 2.6–3.9; femur I 5.4–6.5. Females (n = 10): total length 6.8–12.7; prosoma 2.8–4.5; femur I 3.8 –5.0.

Distribution. Southeastern Atlantic Forest, from southern Bahia to southeastern Minas Gerais ( Fig. 84View FIGURE 84).

IBSP

Instituto Biologico de Sao Paulo

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

SMF

Forschungsinstitut und Natur-Museum Senckenberg

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Caayguara