Caayguara cupepemayri, 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: 16-17

publication ID

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

persistent identifier

http://treatment.plazi.org/id/03CF8789-FFAF-071A-FF22-FE511057E4EA

treatment provided by

Plazi

scientific name

Caayguara cupepemayri
status

sp. nov.

Caayguara cupepemayri  sp. nov.

Figs 44 –48View FIGURES 44 – 48, 77View FIGURES 71 – 82, 85View FIGURE 85

Type material. Holotype: ɞ from Floresta da Cicuta, Volta Redonda [23 º 31 ' S; 44 º06' W], Rio de Janeiro, Brazil, 11–18 June 2001, Equipe Biota leg. ( IBSP 54023). Paratypes: 3 ɞ, 2 Ƥ, with the same data as holotype ( IBSP 54013; 54018; 54024; MZSP 31776–31777).

Additional material examined. BRAZIL. Rio de Janeiro: 1 ɞ, Jacarepaguá, Serra Carioca [22 º 55 ' S; 43 º 21 W] ( MNRJ 126); 2 ɞ, 1 Ƥ, Volta Redonda, Floresta da Cicuta [23 º 31 ' S; 44 º06' W] ( IBSP 54025; 54563).

Etymology. The specific name is a combined noun phrase in apposition taken from the Tupi Indian language and means “small keel” (cupepema = keel; ayri = small) and refers to the small subdistal ventral keel on the embolus of the male palp.

Diagnosis. The males of Caayguara cupepemayri  sp. nov. resemble those of C. cupepemassu  sp. nov. by the general conformation of the male palp, with simple RTA without ventral lobes and embolus with many keels and projections ( Figs 39View FIGURES 39 – 43; 44, vk, sk). They are distinguished by the ventral keel of the embolus that is much smaller than in C. cupepemassu  sp. nov. ( Fig. 44View FIGURES 44 – 48; vk) and by the lack of a distal, ventrally bent keel, covering part of the distal region of the embolus. The females resemble those of C. juati  sp. nov., C. apiaba  sp. nov., C. ajuba  sp. nov. and C. cupepemassu  sp. nov. by the general conformation of the epigynum ( Figs 26View FIGURES 24 – 28, 31View FIGURES 29 – 33, 36View FIGURES 34 – 38, 41View FIGURES 39 – 43) but are distinguished from the latter by the chalice-shape of the median septum ( Fig. 46View FIGURES 44 – 48).

Description. Male ( IBSP 54023): Dorsal shield of prosoma orange, slightly darker along fovea. Chelicerae, legs and pedipalps orange. Sternum pale yellow with orange margins. Labium orange. Endites pale yellow, distally cream colored. Opisthosoma brownish gray. Dorsally two pairs of white marks on anterior half and few white marks scattered medially on posterior half. Ventrally mottled with white spots laterally. Total length 8.7. Prosoma: 3.7 long, 3.2 wide. Opisthosoma: 4.9 long, 2.4 wide. Eye diameters: 0.24, 0.24, 0.16, 0.24; interdistances: 0.16, 0.04, 0.28, 0.24, 0.18, 0.14. Leg measurements: I: 24.5 (6.5, 2.1, 7.2, 6.5, 2.2); II: 27.6 (7.3, 2.2, 8.0, 7.5, 2.6); III: 18.0 (5.3, 1.7, 5.1, 4.4, 1.5); IV: 20.7 (6.0, 1.7, 5.7, 5.6, 1.7). Spination follows the generic pattern. Palp ( Fig. 77View FIGURES 71 – 82): RTA simple with no ventral lobes; dorsal projection short ( Figs 44–45View FIGURES 44 – 48); tegulum with no projections; embolus with prolateral subdistal keel ( Fig. 44View FIGURES 44 – 48; sk); pars pendula inconspicuous.

Female ( IBSP 54013): Coloration pattern as in male. Total length 8.4. Prosoma: 3.8 long, 3.5 wide. Opisthosoma: 4.4 long, 2.3 wide. Eye diameters: 0.22, 0.24, 0.18, 0.24; interdistances: 0.20, 0.06, 0.32, 0.30, 0.22, 0.16. Leg measurements: I: 18.7 (5.1, 2.0, 5.4, 4.6, 1.6); II: 21.0 (6.0, 2.1, 5.8, 5.4, 1.7); III: 4.3, 1.6, 3.8, 3.0, 1.2); IV: 16.3 (4.9, 1.6, 4.2, 4.3, 1.3). Spination follows the generic pattern. Epigynum: epigynal field rounded, slightly longer than wide; touching part of lateral lobes shorter than median septum ( Fig. 46View FIGURES 44 – 48). Vulva: pp showing a narrow proximal and 7–8 linearly arranged lobes ( Fig. 47View FIGURES 44 – 48); fd shorter than half pp showing a narrow proximal and 7–8, longitudinal ( Figs 47–48View FIGURES 44 – 48).

Variation. Males (n = 6): total length 7.9–8.9; prosoma 3.4–3.7; femur I 6.1–6.8. Females (n = 3): total length 8.4–9.2; prosoma 3.3–3.8; femur I 4.5–5.1.

Distribution. Only known from Rio de Janeiro, southeastern Brazil ( Fig. 85View FIGURE 85).

IBSP

Instituto Biologico de Sao Paulo

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Caayguara